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Indian Journal of Weed Science


Print ISSN: 0253-8050
Online ISSN: 0974-8164

NAAS rating: 5.17

Chief Editor

J.S. Mishra
Dr. J.S. Mishra
Principal Scientist, Division of Crop Research,
ICAR Research Complex for Eastern Region,
Bihar Veterinary College, Patna - 800014 (Bihar)
Mobile - +91 9494240904
Email- editorisws@gmail, jsmishra31@gmail.com

Associate editors

Bhagirath S. Chauhan

Dr. Bhagirath Singh Chauhan
Queensland Alliance for Agricultureand Food Innovation
Level 2, Queensland Bioscience Precinct
The University of Queensland
St Lucia QLD 4069, Australia
Email: b.chauhan@uq.edu.au
A.N. Rao
Dr. A.N. Rao
Hydarabad, INDIA
Mobile Number: +91 9440372165
Email: adusumilli.narayanarao@gmail.com

CALL FOR RESEARCH PAPER

Indian Journal of Weed Science is inviting your articles, review article, Research article and Research note on all topics of weed science. IJWS welcomes quality work that focuses on research, development and review. We are looking forward for strict compliance to the modern age standards in all these fields. Authors across the globe are welcome to submit their research papers in the prestigious journal fulfilling the requisite criterion.

Indian Journal of Weed Science (IJWS) is inviting papers for the VOL-53, ISSUE-1 March-(2021)


Article submission guideline

Enter your login details for IJWS below. If you do not already have an account you will need to.. Register here
Author login
  • Author Instruction
  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.

CALL FOR RESEARCH PAPER

Indian Journal of Weed Science is inviting your articles, review article, Research article and Research note on all topics of weed science. IJWS welcomes quality work that focuses on research, development and review. We are looking forward for strict compliance to the modern age standards in all these fields. Authors across the globe are welcome to submit their research papers in the prestigious journal fulfilling the requisite criterion.

Indian Journal of Weed Science (IJWS) is inviting papers for the VOL-51, ISSUE-4 December-(2019)


Article submission guideline

Enter your login details for IJWS below. If you do not already have an account you will need to.. Register here
Author login
  • Author Instruction
  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.
Read More

Guidelines for Authors

Indian Journal of Weed Science is a quarterly journal publishing original research article, research notes, opinion articles and review articles (invited or with prior approval of the title reflecting substantial contributions of the author) covering all areas of weed science research. All contributions must be of a sufficient quality to extend our knowledge in weed science.

The papers submitted should not have been published or communicated elsewhere. Authors will be solely responsible for the factual accuracy of their contribution. Manuscript should not carry any material already published in the same or different forms.

  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Format

Full length article should be suitably divided into the following sub-sections; ABSTRACT, Key words, INTRODUCTION, MATERIALS AND METHODS, RESULTS AND DISCUSSION and REFERENCES. The heading, introduction need not be mentioned in the text.

Title

The title of article should be informative but concise and should not contain abbreviations. It should indicate the content of the article essential for key word indexing and information retrieval. It should be set in small and bold letters. A good title briefly identifies the subject, indicates the purpose of study and introduces key terms and concepts. Title should not be started with the waste words like 'a study of', 'effect of', 'influence of' , 'some observations on', 'a note of' etc. The title should indicate preferably English name or most popular common name of the crops or organisms studied, wherever relevant. Scientific name can be given in abstract and introduction. Authority for such a name should be given at first mention in the text. A short title should be given for running headlines and should cover the main theme of the article.

Author(s) name(s) and affiliations

The name(s) of the author(s) should be given in small letters with sentence case separated by 'comma' or by 'and'. Institute name where the research was carried out should be given in italics. If authors are of different institutes, these can be mentioned by allotting number like 1, 2 or 3 as superscript over the name of author. The affiliation of such author may be given below of the corresponding author email address. Sometimes authors retire and change frequently and wish to give their current address, this should be given as foot note. Email address of main author or corresponding author should be given at the bottom.

Abstract

The abstract should contain at least one sentence on each of the following: objective of investigation (hypothesis, purpose, collection, result and conclusions). Give complete scientific name for plants or other organisms and full name of any symbol or abbreviations used. There is a need to mention place, name and priod of study in abstract. Emphasis should be given to highlight the results and the conclusion of the study. It should not exceed a total length of 200-250 words. Abstract should not have the words like 'will be explained or will be discussed'.

Key words

(5 6) should be given at the end of the abstract and should be arranged alphabetically. Each key word should be started with capital letter and separated by comma ( , ) from other words.

Introduction

Introduction should be brief and to the point, cover the problem and should justify the work or the hypothesis on which it is based. In introduction, a detail review is not necessary. However, to orient readers, important references about previous concepts and research should be given. It should briefly state the currently available information and should identify the research gap that is expected to be abridged through this investigation. Give preference to recent references from standard research publication unless it is of historical importance or a landmark in that field.

Materials and Methods

This part should begin with information relating to period/season/year and place of study, climate or weather conditions, soil type etc. Treatment details along with techniques and experimental design, replications, plot size etc. should be clearly indicated. Use of symbols for treatments may be avoided and an abbreviation should be fully explained at its first mention. Crop variety, methodology for application and common cultivation practices should be mentioned. Known methods may be just indicated giving reference but new techniques developed and followed should be described in detail. Methods can be divided into suitable sub-headings, typed in bold at first level and in italics at second level, if necessary.

Results and Discussion

Results may be reported and discussed together to avoid duplication. Do not mention and recite the data in the text as such given in the table. Instead interpret it suitably by indicating in terms of per cent, absolute change or any other derivations. Relate results to the objectives with suitable interpretation of the references given in the introduction. If results differ from the previous study, suitable interpretation and justification should be given. Repeated use of statements like 'our results are in agreement’ or ‘similar results were reported’ 'should be avoided. At the end of results and discussion, conclusion of the study should be given in 2-3 sentences along with suggestion for further study, if any. All statistical comparisons among treatments may be made at P=0.05 level of probability.

Acknowledgement

The authors may place on record the help and cooperation or any financial help received from any source, person or organization for this study. This should be very brief.

References

Only relevant and recent references of standard work should be quoted. Preference should be given to quote references of journals over proceedings or reports. In general, not more than 15 references should be quoted in full paper and 5 in short communication. However, in review article, emphasis should be given to quote more references with each valid statement/findings in the text. There is no need to give references for standard procedures of soil and plant analysis, and for routine statistical analysis in practice, only the methodology may be indicated. As a thumb rule, all the references quoted in the text must appear at the end of the article and vice-verse. It has been decided to use full name of the journal after the year 2011 onwards. Therefore, references should include names of all authors, year, full title of the article quoted, full name of the journal in italics (no abbreviations), volume number (in Bold), issue number (in brackets) and pages. For books, monographs, theses etc. full title in italics, publisher or university name, volume no., if any, and relevant page range or total no. of pages should be given. The list of references should be arranged alphabetically on author's names and chronologically per author. Author name should be started with surname and initial letter with capital letter. There is no need to separate author's initials by full stop but it should be given in capital letters without gap. Each author name should be separated by comma (,) and last author name by ‘and’. A few examples of correct citation of references for Indian Journal of Weed Science are given below:

Singh Samunder, Punia SS, Yadav A and Hooda VS. 2011. Evaluation of carfentrazone-ethyl + metsulfuron-methyl against broadleaf weeds of wheat. Indian Journal of Weed Science 43(1&2): 12-22.

Neeser C and Varshney Jay G. 2001. Purple nutsedge; biology and principles for management without herbicides, Indian Journal of Pulses Research 14(1): 10-19.

Naseema A, Praveena R and Salim AM. 2004. Ecofriendly management of water hyacinth with a mycoherbicide and cashew nut shell liquid. Pakistan Journal of Weed Science Research 10(1&2): 93-100.

Arya DR, Kapoor RD and Dhirajpant. 2008. Herbicide tolerant crops: a boon to Indian agriculture, pp 23-31. In: Biennial Conference on Weed Management in Modern Agriculture: Emerging Challenges and Opportunities. (Eds. Sharma RS, Sushilkumar, Mishra JS, Barman KK and Sondhia Shobha), 27-28 February 2008, Patna. Indian Society of Weed Science, Jabalpur.

Anonymous. 2006. Long-term herbicide trial in transplanted lowland rice-rice cropping system, pp 62-68. In: Annual Progress Report, AICRP on Weed Control, Tamil Nadu Agricultural University, Coimbatore.

DWSR. 2010. Annual Report, 2010-11, pp 35-37. Directorate of Weed Science Research, Jabalpur.

Gopal B and Sharma KP. 1981. Water hyacinth (Eichhornia crassipes) the most troublesome weeds of the world. Hindasia Publisher, New Delhi, 129 p.

Sushilkumar, Sondhia S and Vishwakarma K. 2003. Role of insects in suppression of problematic alligator weed (Altemanthera philoxeroides) and testing of herbicides for its integrated management. Final Report of ICAR Adhoc Project, 39 p.

For Web references: the full URL should be given and the date when the reference was last accessed. e.g. http://www.faostat.fao.org (accessed 21 May 2019)

Length

Full length manuscript should not exceed 4500 words including space required for figures, tables and list of references. Research note can be up to 2500 words, with not more than 2 figures or tables. One season/year data should invariably be presented as research notes only.

Units, abbreviations and nomenclature

For physical units, unit names and symbols, the SI system should be employed. Biological names should be given according to the latest international nomenclature. Upon its first use in the title, abstract and text, the common name of a weed should be followed by the scientific name (genus, species and authority) in parentheses. If no common name exists in English, the scientific name should be used only. At the first mention of an herbicide or other chemical substance, give its generic name only. Trade names should not be used. Biological and zoological names, gene designations and gene symbols should be italicized. Yield data should be reported in kg/ha or t/ha. All such letters such as viz., et al., in situ, ex situ, Rabi, Kharif, i.e., etc. should be italicized.

Tables and figures

Tables and figures should be concise and limited to the necessary minimum. We encourage the authors to set tables and figures at the appropriate places in the article but if it is not possible, the same may be given separately. The title should fully describe the contents of the table and explain any symbol or abbreviations used in it. The standard abbreviations of the units of different parameters should be indicated in parentheses. Vertical lines should not be given in the tables and horizontal lines should be used to separate parameters and end of the table.

Figures may be preferred in place of table. In no case the same data should be presented by both tables and figures. While presenting data through line graphs, vertical bars, cylinders, pie charts etc, the same should be preferred with black lines or bars having different clear symbols and shades. The graphs chosen with colours reproduce poorly and should not be given unless it became necessary.

Some useful tips

Avoid numerals and abbreviations at the beginning of a sentence. Don't use superscript for per hectare, ton or meter (kg ha-1 or t ha-1) instead use kg/ha or g/m2, t/ha, mg/g, ml/l etc. Prefer to mention yield data in t/ha only. If it becomes necessary, give yield in kg/ha but not in quintal. Don't use lakh, crores or arabs in text, instead give such figures in million. Only standard abbreviations should be used and invariably be explained at first mention. Avoid use of self-made abbreviations like iso., buta., rizo., etc. Don't use first letter capital for names of plant protection chemicals but it should be used for trade names. Use of treatment symbols like T1 T2 T3 etc. should be avoided. All weights and measurements must be in SI or metric units. Use % after double digit figures, not per cent, for example 10% not 10 per cent. In a series of range of measurement, mention the units only at the end, e.g. 3,4,5 kg/ha instead of 3 kg/ha, 4 kg/ha and 5 kg/ha. Nutrient doses as well as concentration in soil and plant should be given in elemental form only, i.e. P and K should not be given as P2O5 K2O. A variety may be mentioned within single quotes in italic such as 'Pusa Basmai', 'Kufri Sinduri' etc. Statistical data should be given in LSD (P=0.05) instead CD (P=0.05).

Authors are requested to see the recent issue of the journal to prepare the manuscript as per the journal's format.

Manuscript submission

Manuscripts must conform to the journal style (see the latest issue). Correct language is the responsibility of the author. After having received a contribution, there will be a review process, before the Chief Editor makes the definitive decision upon the acceptance for publication. Referee's comments along with editors comments will be communicated to authors as scanned copy/soft copy through email. After revision, author should send back the copy of revised manuscripts to the Chief Editor, ISWS by e-mail only.

Editorial Board reserves the right to suitably modify, accept or reject the MS in view on the reviewer's advice.

We encourage submission of paper only by electronically via E-mail as one complete word document file. When preparing your file, please use only Times New Roman font for text (title 16, all heads 14 and text of 12 point, double spacing with 1.5" margin all the sides) and Symbol font for Greek letters to avoid inadvertent character substitutions.

All manuscripts should be submitted Online (http://www.isws.org.in/login_IJWS.aspx). For authors unable to submit their manuscript online

To see sample copy to prepare the manuscript, please Log on: http://www.isws.org.in/IJWSn/Journal.aspx

Peer Review Policy

All published articles in Indian Journal of Weed Science (IJWS) are subjected to rigorous peer review processes based on initial editor screening and anonymized refereeing by two referees. The ultimate purpose of peer review is to sustain the originality and quality of research work and filtration of poor quality and plagiarized articles. Peer review assures research quality.

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.

Peer Review Policy

The practice of peer review is to ensure that only good science is published. It is an objective process at the heart of good scholarly publishing and is carried out by all reputable scientific journals. Our reviewers therefore play a vital role in maintaining the high standards of the (Indian Journal of Weed Science) Journal of Management and Research and all manuscripts are peer reviewed following the procedure outlined below.

Initial manuscript evaluation

The Editors first evaluate all manuscripts. In some circumstances it is entirely feasible for an exceptional manuscript to be accepted at this stage. Those rejected at this stage are insufficiently original, have serious scientific flaws, have poor grammar or English language, or are outside the aims and scope of the journal. Those that meet the minimum criteria are passed on to experts for review.

Authors of manuscripts rejected at this stage will be informed within 2 weeks of receipt.

Type of Peer Review

The (Indian Journal of Weed Science) employs double blind review, where the reviewer remains anonymous to the authors throughout the process.

How the reviewer is selected

Reviewers are matched to the paper according to their expertise. Our reviewer database contains reviewer contact details together with their subject areas of interest, and this is constantly being updated.

Reviewer reports

Reviewers are asked to evaluate whether the manuscript:

  • Is original
  • Is methodologically sound
  • Follows appropriate ethical guidelines
  • Has results which are clearly presented and support the conclusions
  • Correctly references previous relevant work

Reviewers are not expected to correct or copyedit manuscripts. Language correction is not part of the peer review process. Reviewers are requested to refrain from giving their personal opinion in the "Reviewer blind comments to Author" section of their review on whether or not the paper should be published. Personal opinions can be expressed in the "Reviewer confidential comments to Editor" section.

How long does the peer review process take?

Typically the manuscript will be reviewed within 2-8 weeks. Should the reviewers' reports contradict one another or a report is unnecessarily delayed a further expert opinion will be sought. Revised manuscripts are usually returned to the Editors within 3 weeks and the Editors may request further advice from the reviewers at this time. The Editors may request more than one revision of a manuscript.

Final report

A final decision to accept or reject the manuscript will be sent to the author along with any recommendations made by the reviewers, and may include verbatim comments by the reviewers.
Chief Editor's Decision is final
Reviewers advise the Editors, who are responsible for the final decision to accept or reject the article.

Special Issues / Conference Proceedings

Special issues and/or conference proceedings may have different peer review procedures involving, for example, Guest Editors, conference organizers or scientific committees. Authors contributing to these projects may receive full details of the peer review process on request from the editorial office.

Becoming a Reviewer for the (Indian Journal of Weed Science)

If you are not currently a reviewer for the (Indian Journal of Weed Science) but would like to be considered as a reviewer for this Journal, please contact the editorial office by e-mail at (editorisws@gmail.com), and provide your contact details. If your request is approved and you are added to the online reviewer database you will receive a confirmatory email, asking you to add details on your field of expertise, in the format of subject classifications.

Editorial Board

Editorial office:

Office Manager, Indian Society of Weed Science, ICAR-Directorate of Weed Research, Maharajpur, Jabalpur, India 482 004

Publisher Address:

Secretary, Indian Society of Weed Science, ICAR-Directorate of Weed Research, Maharajpur, Jabalpur, India 482 004

Principal Scientist
Division of Crop Research
ICAR Research Complex for Eastern Region
Bihar Veterinary College, Patna - 800014 (Bihar)

Chief Editor J.S. Mishra 9494240904 jsmishra31@gmail.com

The University of Queensland
St Lucia QLD 4069, Australia

Associate Editor Bhagirath Singh Chauhan b.chauhan@uq.edu.au

Consultant,
ICRISAT,
International Crops Research Institute for Semi-Arid Tropics
Patancheru, Hyderabad

Associate Editor A.N. Rao 9440372165 adusumilli.narayanarao@gmail.com

Editors

Professor,
Department of Agronomy, CCSHAU,
Hisar-125 004 (Haryana)

Ashok Kumar Yadav 9416995523 aky444@gmail.com

Professor & Head,
Division of Agronomy
FoA, Main Campus,
Chatha, SKUAST-Jammu (J&K)

B.C. Sharma 9419152428 drbhagwati@gmail.com

Principal
Vanavarayar Institute of Agriculture
Affiliated to TNAU)
Manakkadavu, Pollachi-642103 (Tamil Nadu)

C. Chinnusamy 9443721575 chinnusamyc@gmail.com

Scientist,
ICAR - Directorate of Weed Research,
Jabalpur (Madhya Padesh)

Dibakar Ghosh 8989190213 dghoshagro@gmail.com

Principal Scientist
Department of Agronomy,
Assam Agricultural University
Jorhat - 785013 (Assam)

I.C. Barua 9435094326 iswar_barua@yahoo.co.in

Principal Scientist
PJTSAU, Hyderabad-30 (Telangana)

M. Madhavi 9491021999 molluru_m@yahoo.com

Assistant Agronomist
Directorate of Agriculture (Govt. of WB)
Kolkata 700001, West Bengal

Malay Kumar Bhowmick 9434239688 bhowmick_malay@rediffmail.com

Associate Professor
(Soil Science & Agrl. Chemistry)
Anbil Dharmalingam Agricultural College & Research Institute (TNAU),
Trichy (Tamil Nadu)

P. Janaki 9443936160 janakibalamurugan@rediffmail.com

Assistant Chemist (Residue),
Department of Agronomy,
Punjab Agricultural University
Ludhina-141 004 (Punjab)

Pervinder Kaur 9646105418 pervi_7@yahoo.co.in

Sr. Agronomist, Directorate of Extension Education
Punjab Agricultural University
Ludhiana – 141004 (Punjab)

Simerjeet Kaur 9814081108 simer@pau.edu

College of Horticulture,
Vellanikkara. Thrissur – 680 656, (Kerala)

T. Girija 9447004940 girijavijai@gmail.com

Principal Scientist,
Directorate of Maize Research,
Pusa Campus, New Delhi-110012

C.M. Parihar 9013172214 pariharcm@gmail.com

Indexing Indexing & Abstracting Services


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Volume- 46 | Issue-4 (Oct-Dec) | Year 2014

Crop establishment methods and weed management on growth and yield of dry direct-seeded rice
Nikhil Kumar Singh* and U.P. Singh
Full length articles | DOI: 2014-46-4-1 | Volume: 46 Page No:308-313 |
Address & Email | Article preview | View PFD | Download

Abstract:

A field study was undertaken to evaluate the crop establishment and weed management options for direct-seeded rice (DSR) in the Institute for Agricultural Sciences, BHU, Varanasi, India during rainy season in 2008 and 2009. The weed flora were grasses as Echinochloa colona, Echinochloa crusgalli, Cynodon dactylon, Paspalum spp., sedges as Cyperus rotundus, Cyperus iria and broad-leaved weeds like Caesulia axillaris. Data were recorded on weed dynamics, crop growth and yield of the direct-seeded rice crop. Rice established by zero-till DSR with 40 cm anchored residue had minimum density of grasses, sedges and broad-leaved weeds and dry weight at 60 DAS. Among weed management methods, use of pendimethalin 1000 g/ha (pre-em) fb azimsulfuron 35 g/ha at 15-20 DAS + one HW at 40 DAS proved to be most effective in minimizing the weed density, dry weight and weed persistence index (0.08 and 0.04) and in enhancing the weed control efficiency (72.04% and 76.77%). The maximum grain yield, straw yield and biological yield was found with application of pendimethalin 1000 g/ha (pre-em) fb azimsulfuron 35 g/ha at 15-20 DAS + one HW at 40 DAS, which was significantly superior to rest of the treatments during both the years of experimentation.

Email

n.k.singh@cgiar.org

Address

Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221 005
Weed management in rice grown under System of Rice Intensification
Musthafa Kunnathadi, C.T. Abraham and C. George Thomas
Full length articles | DOI: 2014-46-4-2 | Volume: 46 Page No:314-317 |
Address & Email | Article preview | View PFD | Download

Abstract:

An experiment was conducted to assess the efficacy of different weed management practices in rice grown under the System of Rice Intensification (SRI) in comparison with the conventional system. The study was carried out during 2007 and 2008 in the lateritic sandy clay loam soils at Pattambi, Kerala. Density and dry weight of weeds were higher in SRI especially when weed control was done through repeated cono weeding, while they were lower in the conventional system. Conventional system with cono weeding at 10 DAT followed by hand weeding at 30 DAT, and post-emergence herbicides alone reduced the weed dry weight significantly. Net returns and B:C ratio were also the highest in the conventional system with post-emergence application of cyhalofop-butyl  0.1 kg/ha followed by metsulfuron-methyl  + chlorimuron-ethyl. In SRI, the weed density and dry weight were the lowest with pre-emergence herbicide followed by hand weeding at 30 DAT, and cono weeding at 10 DAT followed by post-emergence herbicides. However, weed control with post-emergence application of cyhalofop-butyl, followed by metsulfuron-methyl + chlorimuron-ethyl gave higher B:C ratio in both systems. 

Email

musthaffa.k@kau.in

Address

Department of Agronomy, College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur, Kerala 680 656
Influence of crop density on weeds, growth and yield of direct-seeded rice
Simerjeet Kaur and Surjit Singh
Full length articles | DOI: 2014-46-4-3 | Volume: 46 Page No:318-321 |
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Abstract:

Field experiment was conducted during Kharif 2009 and 2010 to study the effect of rice seed rate (20, 30, 40 and 50 kg/ha) and inter row spacing (15, 20, 25 and 30 cm) on weeds, crop growth and grain yield of direct-seeded rice. Population of Echinochloa and Cyperus was minimum when DSR was sown with seed rate of 50 kg/ha with 15-20 cm row spacing and it was maximum when lower seed rate of 20-30 kg/ha was used with wider row spacing of 30 cm. Weed biomass was significantly affected by seed rate, being maximum with lower seed rate usage of 20 kg/ha and decreased significantly with each successive increase in seed rate. With the increase in row spacing from 15 to 30 cm, weed biomass increased significantly.  Maximum number of tillers was recorded when rice was sown with seed rate of 50 kg/ha with wider row spacing of 30 cm. The seed rates and row spacings did not have any significant effect on effective tillers and grain yield of dry-drilled rice.

Email

simer@pau.edu

Address

Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab 141 004
Effect of tillage and weed management practices on weed dynamics, weed seed bank and grain yield of wheat in rice-wheat system
Radhey Shyam, Rohitashav Singh and V. K. Singh
Full length articles | DOI: 2014-46-4-4 | Volume: 46 Page No:322-325 |
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Abstract:

A field experiment was conducted during two consecutive Rabi season of 2005-06 and 2006-07 at NEB Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar on sandy loam soil to find out the effect of tillage and weed management practices on weeds, weed seed bank in soil and grain yield of wheat grown after rice. Zero till sown wheat had significantly lesser weed dry weight per unit area as compared to conventional sown wheat. Phalaris minor, Melilotus indica and Chenopodium album seed density in soil were significantly lower under zero tillage as compared to conventional tillage from 0 to 5, 5 to10 and 10 to 15 cm soil depths. Excellent suppression in weed density and dry weight and higher yield of wheat were obtained with two hand weeding under conventional tillage system. Under weedy situation, zero tillage was found better because of less weed emergence.

Email

talk2radhey@india.com

Address

G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand 263 145
Herbicidal control of problematic weeds in wheat
Amandeep Singh Sidhu, M.S. Gill, Sat Pal Saini, Sukhpreet Singh and Pritpal Singh
Full length articles | DOI: 2014-46-4-5 | Volume: 46 Page No:326-329 |
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Abstract:

On-farm trials were conducted at farmers’ fields in Ropar and Ferozpur districts of Punjab to validate, refine and popularize the technology developed by Punjab Agricultural University, Ludhiana for managing grassy and broad-leaf weeds in wheat. The objective of the study was to test the effectiveness of clodinafop 60 g/ha and carfentrazone-ethtyl 20 g/ha over farmer practice of using un-recommended herbicides and brands on the infestation of weeds and profitability of wheat in central Punjab. Recommended practice of clodinafop followed by carfentrazone-ethyl resulted in significantly higher grain yield (4.56 and 4.69 t/ha) than other treatments including farmer practice. There was 14.4 and 17.9, 3.4 and 5.7 and 3.0 and 4.3 per cent increase in grain yield with recommended practice over control, metribuzin and farmers’ practice, respectively. The population of grassy weeds was minimum with metribuzin 175 g/ha treatment, which was statistically at par with recommended practice but was significantly lower than other two treatments, whereas the number of broad-leaf weeds was significantly lower with recommended treatment. The herbicide efficiency index (HEI) was highest (16.8 and 21.8) with recommended practice indicating higher efficiency of this treatment in controlling weeds. A slight phytotoxicity was observed with metribuzin which resulted in significant reduction in effective tillers than other herbicidal treatments. Highest B: C ratio (2.45 and 2.77) and net returns (` 45.99 and 52.86 x 103 /ha) were recorded with recommended practice.

Email

sidhuas@pau.edu

Address

Krishi Vigyan Kendra, Punjab Agricultural University, Ropar, Punjab 140 001
Integrated weed management in maize-sunflower cropping system
R. Baskaran and R. Kavimani
Full length articles | DOI: 2014-46-4-6 | Volume: 46 Page No:330-332 |
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Abstract:

A field experiment was conducted during Rabi and Kharif season of 2012 and 2013 at Veppantattai to study the effect of tillage and weed management methods on weeds dynamics and yield of maize–sunflower cropping system. Results revealed that conventional tillage with disc plough followed by cultivator tillage twice and pre-emergence herbicide (atrazine 0.5 kg/ha for maize and pendimethalin 1.0 kg/ha for sunflower), followed by hand weeding on 40 DAS kept the weed density and weed dry weight below the economic threshold level and increased the productivity, net returns and benefit : cost ratio of maize-sunflower cropping system in clay loam soils under irrigated condition.

Email

rbaski73@gmail.com

Address

Cotton Research Station, Tamil Nadu Agricultural University, Veppanthattai, Perambalur, Tamil Nadu 621 116
Weed indices in chickpea + mustard intercropping system
Ranjeet Kour, Anil Kumar, B.C. Sharma, Brijnandan, Paramjeet Kour and Neetu Sharma
Full length articles | DOI: 2014-46-4-7 | Volume: 46 Page No:333-335 |
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Abstract:

A field experiment consisted of four intercropping systems, viz. sole chickpea, sole mustard, chickpea + mustard (additive series) and chickpea + mustard (replacement series) and six weed management practices, viz. weedy check, weed free, pendimethalin 1 kg/ha as pre-emergence , fluchloralin 1 kg/ha as pre-plant incorporation (PPI), isoproturon 0.75 kg/ha as post-emergence and quizalofop-ethyl 50 ml/ha as post-emergence.  Results revealed that weed species, Medicago sativa, Anagallis arvensis and Cyperus rotundus with higher relative weed density and dry weed weight were observed. The values of smothering efficiency were higher in additive as compared to replacement treatment. Maximum yield loss was in weedy check in comparison to weed-free plots. Application of pendimethalin at 1 kg/ha gave higher yield of chickpea and mustard along with maximum returns.

Email

ranjeet1661@yahoo.com

Address

Main Campus, Chatha, SKUAST- Jammu, Jammu & Kashmir 180 009
Nutrient uptake as influenced by weed management in winter maize + potato intercropping system
Paramjeet Kour, Anil Kumar, B.C. Sharma, Ranjeet Kour and Neetu Sharma
Full length articles | DOI: 2014-46-4-8 | Volume: 46 Page No:336-341 |
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Abstract:

A field experiment was conducted during Rabi 2009-10 and 2010-11 at research farm of Sher-e-Kashmir University of Agriculture Science and Technology, Jammu with four intercropping treatments, viz. sole maize, sole potato, maize + potato (additive Series) and maize + potato (replacement series) in main plots and six methods of weed control practices, viz. weedy check, weed free, alachlor1.5 kg/ha pre-emergence, atrazine 0.5 kg/ha pre-emergence, alachlor 2.0 kg/ha early post-emergence and atrazine 0.75 kg/ha post-emergence in sub plots to assess the productivity and profitability of winter maize + potato intercropping system.These treatments were evaluated under split plot design with three replications. Results revealed that sole stands of winter maize and potato removed highest amount of N, P and K which were followed by additive series and replacement series whereas among the weed management practices, highest amount of N, P and K was removed by weed free treatment  fb atrazine PE 0.75 kg/ha and alachlor 1.5 kg/ha while the lowest N, P and K was removed by alachlor 2.0 kg/ha early post emergence. Among the different intercropping treatments, weeds removed significantly highest N, P and K from sole crops followed by additive series and replacement series. Among weed management practices, the uptake of N, P and K in weeds was found to be significantly less in all the weed management practices as compared to weedy check treatment.

Email

param_ashu@yahoo.com

Address

Main Campus, Chatha, SKUAST - Jammu, Jammu & Kashmir 180 009
Management of nutsedge in sugarcane by ethoxysulfuron
Rohitashav Singh, Tej Pratap, Ram Pal, Vir Pal Singh, Rekha and Jodhpal Singh
Full length articles | DOI: 2014-46-4-9 | Volume: 46 Page No:342-345 |
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Abstract:

Field investigion was carried out for two consecutive years 2009-10 and 2010-11 at Pantnagar (Uttarakhand) to study the bio-efficacy of ethoxysulfuron for the control of Cyperus rotundus (nutsedge) in sugarcane. Experiment consisted of six treatments, viz. doses of ethoxysulfuron 46.87, 56.25 and 60 g/ha, 2,4-D Na salt 1000 g/ha, three hoeing 30, 60 and 90 days after planting (DAP) of sugarcane and untreed control was laid out in randomized block design with three replicions. Ethoxysulfuron and 2,4-D Na salt were applied  at 3-4 leaf stage of Cyperus rotundus. Among the herbicidal treatments, the lowest weed density as well as dry weight of total weeds was observed with ethoxysulfuron 60 g/ha 3-4 leaf stage of C. rotundus  at both the stages at 30 and 60 DAA though the differences were non-significant when compared with its lower dose 56.25 g/ha, 30 and 60 DAA and 46.87 g/ha 60 DAA during both the year. Application of ethoxysulfuron 3-4 leaf stage of C. rotundus effectively controlled C. rotundus and broad-leaved weeds, viz. Trianthema monogyna, Digera arvensis, Cleome viscosa and Ipomoea spp. This herbicide any rate was not effective against grassy weeds. The highest cane yield was recorded with the execution of three hoeing at 30, 60 and 90 days after planting (DAP). Among the herbicidal trements, ethoxysulfuron 60 g/ha at 3-4 leaf stage of C. rotundus recorded maximum cane yield (82.3 and 86.8 t/ha), although it was at par with its lower dose 56.25 g/ha. The lowest cane yield was recorded with control.

Email

rohitash_1961@ redifmail.com

Address

G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand 263 145
Weed management in sugarcane ratoon crop
Rajender Kumar*, Jayesh Singh and S.K. Uppal
Full length articles | DOI: 2014-46-4-10 | Volume: 46 Page No:346-349 |
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Abstract:

A field experiment was conducted on ratoon crop of sugarcane to develop suitable weed management practices during spring seasons of 2008-09, 2009-10 and 2010-11 at Sugarcane Experimental Area, (Ladhowal), Punjab Agricultural University, Ludhiana. A total of fourteen treatments including weedy check was tested in randomized block design with three replication. Herbicidal treatments were applied to ratoon crop immediately after harvesting of plant crop in the Ist week of February every year under moist conditions. The highest weed dry weight of 182.7 g/m2 was recorded in weedy check. All the weed control treatments recorded significantly less weed dry weight as compared to the weedy check. The highest pooled cane yield of 74.3 t/ha was obtained with pre-emergence application of metribuzin  1.4 kg/ha fb 2,4-D 1.6 kg/ha at 45 days after ratoon initiation (DARI). The weed dry weight was significantly reduced to less than one third (54.3 g/m2) with pre-emergence application of metribuzin 1.4 kg/ha fb 2,4-D 1.6 kg/ha at 45 DARI compared to weedy check. Atrazine applied as pre-emergence at 2 kg/ha fb 2,4-D 1.0 kg/ha at 45 DARI proved equally effective as pre-emergence metribuzin 1.4 kg/ha fb 2,4-D 1.6 kg/ha at 45 DARI. In sugarcane ratoon crop, pre-emergence application of  metribuzin 1.4 kg/ha fb 2,4-D 1.6 kg/ha at 45 DARI or  atrazine 2 kg/ha fb 2,4-D 1.0 kg at 45 DARI gave net returns of ` 84,820/- and ` 84,497/- which was 61.7% and 61.1% higher over control, respectively.

Email

drajmunjal@rediffmail.com

Address

Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, Punjab 141 004
Chemical and mechanical weed management for increased yield of French bean
Amit Kumar, Amal Saxena and Pradeep Kumar Singh
Full length articles | DOI: 2014-46-4-11 | Volume: 46 Page No:350-352 |
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Abstract:

Field experiments were conducted during Kharif 2010 and 2011 to study the effect of weed management practices on French bean in temperate region of Kashmir, India. Among different weed control treatments, pre-plant incorporation and pre-emergence application of fluchloralin and pendimethalin 1.00 kg/ha significantly reduced the population of different weeds than weedy check and other herbicide treatments.  These resulted in significant increase in growth and yield attributes, viz. plant height, number of branches, dry matter accumulation, seed and straw yield of French bean. Maximum seed yield was obtained with fluchloralin 1.00 kg/ha and pendimethalin 1.00 kg/ha treatments with a corresponding value 1.11 and 1.10     t/ha. These also increased the nutrient uptake by French bean crop at various crop growth stages over weedy check and other treatments during both the years. Application of fluchloralin 1.00 kg/ha and pendimethalin 1.00 kg/ha significantly increased the net return over weedy check, with B:C ratio of 1.18 and 1.12 during two cropping seasons.

Email

khokherak@rediffmail.com

Address

Krishi Vigyan Kendra, Malangpora, Pulwama, SKUAST-Kashmir, Jammu & Kashmir 191 121
Weed managemet in tea with herbicides mixture
Suresh Kumar, S.S. Rana, N.N. Angiras and Ramesh
Full length articles | DOI: 2014-46-4-12 | Volume: 46 Page No:353-357 |
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Abstract:

A field experiment was conducted in a permanent layout during 2009 and 2010 on farmer’s field at Palampur to evaluate BCS AA 10717 – 2% + glyphosate 40 – 42% SC in tea (Camellia sinensis [L.] Kuntze) crop. Ageratum conyzoides and A. houstonianum (17 and 25.9%, during 2009 and 2010, respectively), Bidens pilosa (19 and 13%), Erigeron canadensis (2 and 16.2%) and Chromolaena adenophorum (9.1 and 9.7%) were the major weeds found infesting tea crop during both the years. BCS AA 10717 + glyphosate, glyphosate and diuron + glyphosate effectively reduced the infestation of Ageratum sp, B. pilosa, and E. canadensis. BCSAA 10717 and hand weeding were not effective against E. canadensis and B. pilosa and paraquat against B. pilosa. Hackelia uncinata was completely eliminated under BCS AA 10717 + glyphosate, glyphosate and diuron + glyphosate. Wild strawberry (Fragaria vesca) was completely eliminated under all the treatments. BCSAA 10717 + glyphosate at higher dose (> 50+1000 g/ha) and diuron + glyphosate were found effective against Cynodon dactylon. All treatments except hand weeding and BCSAA10717  37.5 + glyphosate 750 g/ha had significantly lower count of local grass than untreated check. BCSAA 10717  37.5-140 + glyphosate 750-2800 g/ha, glyphosate alone and diuron + glyphosate effectively reduced the count of C. adenophorum. Total weed count and total weed dry weight were significantly reduced under BCSAA10717  50-140 + glyphosate 1000-2800 g/ha, glyphosate and diuron + glyphosate. BCSAA10717  50-140 + glyphosate 1000-2800 g/ha, glyphosate and diuron + glyphosate had higher weed control efficiency than the hand weeding treatment. There were no phytotoxicity symptoms of BCS AA 10717 + glyphosate on tea. The tea green leaf yield was not influenced by the weed control treatments.

Email

skg_63@yahoo.com

Address

Department of Agronomy, Forages and Grassland Management, COA, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, Himachal Pradesh 176 062
Bioefficacy of potassium salt of glyphosate in Bt cotton and its residual effect on succeeding crops
Tarundeep Kaur and U.S. Walia
Full length articles | DOI: 2014-46-4-13 | Volume: 46 Page No:358-360 |
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Abstract:

A field experiment was conducted to evaluate potassium salt of glyphosate (MON 76366) in Roundup Ready Bt cotton hybrid at PAU, Ludhiana during 2009 and 2010. Potassium salt of glyphosate 50 EC at 900, 1350, 1800, 2700, 3600 and 5400 g/ha was applied twice (after one and three months of sowing) as post-emergence. All the treatments except glyphosate 900 g/ha and weedy check gave effective control of weeds. Application of K salt of glyphosate at 1350 to 5400 g/ha recorded the weed control efficiency (WCE) ranging from 96.8 -99.8%, and produced higher seed cotton yield. The performance of succeeding crops of wheat, barley and raya sown after cotton was not affected, indicating no residual toxicity of K-salt of glyphosate. 

Email

tarundhaliwal@pau.edu

Address

Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab 141 004
Heavy metal extracting potential of common aquatic weeds
P.J. Khankhane, Sushilkumar and H.S. Bisen
Full length articles | DOI: 2014-46-4-14 | Volume: 46 Page No:361-363 |
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Abstract:

The various ponds receive untreated sewage effluents from residential areas in Jabalpur city affecting water quality of the ponds. The very survival of aquatic weed species in contaminated water is testimony of ability of accumulating heavy metals. A survey was made to identify weed species grown in various ponds of Jabalpur  for assessing their heavy metal potential. The heavy metals exhibited the sequence of their concentration in pond water as Fe > Cd > Mn >Ni >Cu. Among the weeds, Eichhornia crassipes accumulated higher concentration of cadmium, nickel, iron and manganese in their roots than shoots whereas Alternanathera philoxeroides accumulated higher metals in shoots than its root parts. Except nickel, higher bioaccumulation factor of Fe, Cd, Mn, Ni, Cu  was exhibited by Alternanthera philoxeroides followed by Eichhornia crassipes. These observations may be exploited while selecting plant species for removal of heavy metals from contaminated water in an artificial wetland system.

Email

pjkhankhane@yahoo.com.ph

Address

ICAR - Directorate of Weed Research, Jabalpur Madhya Pradesh 482 004
Phosphate solubilising diazotrophic bacteria associated with rhizosphere of weedy grasses
C. Sarathambal and K. Ilamurugu
Full length articles | DOI: 2014-46-4-15 | Volume: 46 Page No:364-369 |
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Abstract:

The present investigation hypothesizes that the weedy grass species grown in different physiographic regions do harbour potential microbes and shows lot of scope for the identification of novel functional microbes. In the present study, diazotrophic bacteria were isolated from rhizosphere of ten selected grass species and identified using 16S rRNA gene sequencing. The isolates were belonging to the members of alpha Proteobacteria and Firmicutes. Phosphorus solubilizing traits of all the selected diazotrophic isolates were analysed and results revealed that all the diazotrophs were found to solubilise phosphorous in qualitative assay. Influence of phosphorus solubilizing organisms on the pH, titrable acidity, available phosphorus and phosphatase enzyme production were studied. Maximum amount of available phosphorus and phosphatase activity was observed in Klebsiella sp. (OR7) (0.96 ± 0.09 µg/ml) and Staphylococcus saprophyticus (OR5) (12.9 ±0.10 µg of PNP released/ml/day) respectively. The present compilation of diverse diazotrophs along with phosphorous solubilisation potential suggests that these particular organisms can promote plant growth by more than one mechanism and that these traits could be better exploited as bio-inoculants.

Email

saratha6@gmail.com

Address

Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641 003
Effects of different tillage systems and herbicide on soil microflora of Lablab bean rhizosphere
Y.R. Govekar, U.V. Mahadkar, A.V. Dahiphale, L.G. Pawar, V.B. Nevase, M.J. Mane and S.P. Gosavi
Full length articles | DOI: 2014-46-4-16 | Volume: 46 Page No:370-372 |
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Abstract:

A long term field study was conducted at the Agronomy Farm, Department of Agronomy, Dr. B.S. KKV, Dapoli (Maharashtra) in Rabi season lablab bean crop to evaluate the effect of different tillage systems vis-à-vis different weed control measures on the survival and growth of total bacteria, total fungi, total free living nitrogen fixers and total phosphate solubilizers in rhizosphere soil. Four types of tillage systems were evaluated, viz. (i) Conventional-conventional (ii) Conventional-zero (iii) Zero-conventional and (iv) Zero-zero tillage systems. Among weed control measures, comparative effects of hand weeding and recommended herbicides application (oxadiargyl as pre-emergence) were tested along with weedy check. The results of the investigation revealed that tillage systems didnot significantly influence microbial population. The marginal growth of different microorganisms was observed in conventional-conventional tillage system, whereas minimum was in zero-tillage system. There were no adverse effects of herbicide use on all the estimated microbial population at all the stages of the crop. In short use of recommended herbicide oxadiargyl at 0.12 kg/ha had no long term adverse effects on rhizosphere microflora of lablab bean crop.

Email

govekaryr@gmail.com

Address

Department of Agronomy, Dr. B.S. KKV Dapoli, Maharashtra 415 712
Evaluation of pendimethalin residues in garlic
Neelam Sharma Suresh Kumar, N.N. Angiras and Sweta Sehgal
Full length articles | DOI: 2014-46-4-17 | Volume: 46 Page No:373-376 |
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Abstract:

A field experiment was conducted  to study the persistence and accumulation of pendimethalin residues in garlic. Pendimethalin was applied as pre-emergence treatment at three different doses, viz. 0.75, 1.5 and 3.0 kg/ha. Mature garlic bulbs were collected at crop harvest and soil samples were collected at 0, 15, 30, 45, 60, 75, 90, 120 days after herbicide application and at crop harvest. These samples were analyzed for pendimethalin residues by a validated Gas Liquid Chromatography (GLC) method with an accepted recovery of 79.1–88.2%. The analysis showed that pendimethalin did not leave any residues in soil beyond harvest of the crop at any of the applied dose. On the other hand, garlic bulbs collected at harvest showed 0.004 µg/g pendimethalin residues at a dose of 3.0 kg/ha and below detectable limit (BDL) at 0.75 and 1.5 kg/ha.

Email

sharma_neelam29@rediffmail.com

Address

Department of Agronomy, Forages and Grassland Management, CSK Himachal Pradesh Krishi Vishvavidyalya, Palampur, Himachal Pradesh 176 062
Control of complex weed flora in transplanted rice with herbicide mixure
Priyanka Kabdal, Tej Pratap, V.P. Singh, Rohitashav Singh and S.P. Singh
Short communications | DOI: 2014-46-4-18 | Volume: 46 Page No:377-379 |
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Abstract:

Different herbicides alone and in combination were tested for the control of complex weed flora in transplanted rice during Kharif season 2013 at Crop Research Centre (CRC) of G.B Pant University of Agriculture and Technology, Pantnagar, District, Udham Singh Nagar (Uttarakhand). The experiment was laid out in randomized block design with three replications to evaluate twelve treatments. The major weeds were Echinochloa colona, E. crusgalli, Ischaemum rugosum, Caesulia axillaris, Ammania baccifera, Alternanthera sessilis and Cyperus iria. Combination of post-emergence application of bispyribac-sodium at 25 g/ha + ethoxysulfuron at 18.75 g /ha was most effective in controlling weed species and yielded maximum grain yield (6.51 t/ha) among the herbicidal treatments after weed free (6.74 t/ha).

Email

drtpsingh2010@gmail.com

Address

G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand 263 145
Efficacy of post-emergence herbicides for weed control in transplanted rice
Naresh Kumar, D.P. Nandal and S.S. Punia
Short communications | DOI: 2014-46-419 | Volume: 46 Page No:380-382 |
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Abstract:

The experiment was conducted at the Students’ Farm of College of Agriculture, CCS Haryana Agricultural University, Kaul (Kaithal) during Kharif 2008. The experiment consisted of fifteen treatments in block design with three replications. Thirty days old seedlings were transplanted on 3rd July, 2008 manually at a spacing of 20 x 15 cm with two seedlings per hill. The crop was raised with recommended fertilizer dose. Pre-emergence application of butachlor at 1500 g/ha, pretilachlor 750 g/ha,  pyrazosulfuron at 20 g/ha  or  post-emergence herbicide bispyribac-sodium at the rate of 25 g/ha at 20 DAT could be suitable and economical herbicidal weed management option for transplanted rice to achive higher productivity.

Email

puniasatbir@gmail.com

Address

CCS HAU College of Agriculture, Kaul, Kaithal, Haryana 136 021
Effect of mechanical weeding in System of Rice Intensification and its adoption
R. Veeraputhiran, R. Balasubramanian and B.J. Pandian
Short communications | DOI: 2014-46-4-20 | Volume: 46 Page No:383-385 |
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Abstract:

Eighteen on-farm demonstrations on System of Rice Intensification (SRI) were carried out in  ten  hectares of farmers fields in Sivagangai and Madurai districts of Tamil Nadu from October 2010 to February 2011 under Tamil Nadu-Irrigated Agriculture Modernization and Water Bodies Restoration and Management Project  (TN–IAMWARM) to study the effect and adoption level of rotary weeding on yield of rice under SRI. The results revealed that SRI registered a mean grain yield of 6.06 t /ha against 54.2 t /ha under conventional method of rice cultivation. SRI yielded 11.06 per cent higher grain yield than conventional method. The number of rotary weeding also decides the rate of yield increase in SRI. The average yield increment by four, thrice and twice rotary weeding under SRI over conventional method were 24.1, 15.4 and 8.5 per cent, respectively. Among the total farmers,  only 11.1 per cent farmers perfectly carried out four times rotary weeding as per recommendation. The percentage of farmers adopted thrice, twice and single rotary weeding were 44.5, 33.3 and 11.1 per cent, respectively. Adoption of SRI drastically reduced the cost of weeding as evident due to Rs 2, 534 /ha lesser weed management cost  under SRI  (Rs 2989 /ha) than conventional method of rice cultivation (Rs 5, 523/ha). The cost of cultivation was comparatively lesser in SRI which resulted in gaining an additional net profit of ` 11, 021 /ha as compared to conventional method of rice cultivation.

Email

veeraagri@yahoo.co.in

Address

Cotton Research Station, TNAU, Srivilliputtur, Tamil Nadu 626 135
Effect of post-emergence herbicides on weeds and productivity of wheat
S.B. Vyavahare and R.L. Bhilare
Short communications | DOI: 2014-46-4-21 | Volume: 46 Page No:386-388 |
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Abstract:

A field experiment was conducted during Rabi season of 2010-11 at College of Agriculture, Pune to study the effect post-emergence herbicides on weeds and productivity of wheat. Among the weed control treatments, application of sulfosulfuron 16.5 g/ha + 2,4-D  563 g/ha registered significantly lower weed population (7.6/m2), dry matter of weeds (3.1 g/m2)   and significantly more weed control efficiency of  81.27% than rest of the treatments. The same treatment recorded lowest value of weed index. The values of yield attributes were higher in magnitude in weed free check treatment. Among the herbicide treatments, post-emergence application of sulfosulfuron 16.5 g/ha + 2,4-D  563 g/ha  recorded higher values of yield attributes, viz. length of spike, number of spikelets/spike, number of grains/spike, grain weight/plant and thousand seed weight.  Amongst the weed control treatments, application of sulfosulfuron 16.5 g/ha + 2,4-D  563 g/ha  recorded maximum grain and straw yield of 4.4 and 5.9 t/ha, respectively as compared to other treatments.

Email

bhilareraj28@gmail.com

Address

Mahatma Phule Krishi Vidyapeeth, College of Agriculture, Pune, Maharashtra 411 005
Comparative efficacy of quizalofop-ethyl against weeds in groundnut
V. Pratap Singh, S.P. Singh, A. Kumar, Akshita Banga, Neeta Tripathi, Neema Bisht and R.P. Singh
Short communications | DOI: 2014-46-4-22 | Volume: 46 Page No:389-391 |
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Abstract:

A field experiment was conducted at Norman E. Borlaug, Crop Research Center GBPUA&T, Pantnagar to evaluate the efficacy of quizalofop-ethyl market sample (MS) and sponsor sample (SS) in managing grassy weed flora in groundnut. Result revealed that that application of quizalofop-ethyl 5% EC (SS) at 50 g/ha resulted in significantly higher kernel yield (0.98 t/ha) which was at par with its market sample applied at the same dose. Density and dry matter accumulation of weeds was also minimum by the application of these herbicides. However the highest kernel yield was obtained under the weed free situation. Lower weed density, weed dry weight, weed persistence index and weed index in the plots where quizalofop-ethyl (SS) at 50 g/ha was applied. Higher weed control efficiency and herbicidal efficiency index, economic return were recorded under quizalofop-ethyl 5% EC (SS) at 50 g/ha as compared to standard check imazethapyr 150 g/ha. Thus, the post-emergence application of quizalofop-ethyl 5% EC (SS) at 50g/ha seemed to be more beneficial with high productivity and economic return owing to effective weed control.

Email

vpratapsingh@rediffmail.com

Address

Department of Agronomy College of Agriculture, G.B. Pant University of Agriculture & Technology, Pantnagar, U.S. Nagar, Uttarakhand 263 145
Pre- and post-emergence herbicides for weed management in mungbean
C.B. Khairnar, V.V. Goud and H.N. Sethi
Short communications | DOI: 2014-46-4-23 | Volume: 46 Page No:392-395 |
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Abstract:

Mungbean is recommended for cultivation mainly in Kharif season under Vidarbha condition in Maharastra, India. Weed management is an important factor for enhancing the productivity of mungbean as weeds compete for nutrients, water, light and space with crop during early growth period. Yield losses in mungbean due to weeds have been estimated to range between 30-50% (Kumar et al. 2004). Mechanical practices such as hand weeding and inter -culturing are effective but unavailability of labour and incessant rains during the early crop season normally limit the weeding operations. Therefore, chemical weeding  under such circumstances become indispensible and can be the excellent alternate. Pendimethalin is only recommended pre-emergence herbicides in mungbean, however, peasants could not find time to apply it during the same day or next day due to busy shedule in sowing operation. This warrants the use of pre- and post-emergence herbicides for weed control. The present study was, therefore, conducted to evaluate the effect of different herbicides for mungbean, which can be cost effective and acceptable to the growers of this crop.

Email

vikasgoud08@yahoo.com

Address

Pulses Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharastra 444 104
Chemical weed management in Chrysanthemum
Ravneet Kaur, Madhu Bala and Tarundeep Kaur
Short communications | DOI: 2014-46-4-24 | Volume: 46 Page No:396-398 |
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Abstract:

A field experiment was laid out in randomized block design  with eleven treatments comprising of  ifferent pre-emergence herbicides, viz. butachlor  1.0 kg/ha, butachlor  1.0 kg/ha + 2 hand weedings, butachlor  1.5 kg/ha, pendimethalin  0.75 kg/ha, pendimethalin  0.75 kg/ha + 2 hand weedings, pendimethalin  1.0 kg/ha and atrazine  1.0 kg/ha, atrazine  1.0 kg/ha  + 2 hand weedings, atrazine  1.5 kg/ha besides weed-free (where plots were kept weed free with regular hand weeding) and weedy check (where no cultural practices were followed to control weeds) as control. Results revealed a significant enhancement in flower yield with weed free and butachlor  1.0 kg/ha + 2 hand weedings which were superior over weedy check. The highest weed control efficiency (100%) was also observed in weed free treatment, followed by butachlor  1.0 kg/ha + 2 hand weedings (84.5%) and atrazine  1.0 kg/ha + 2 hand weedings (80.1%). Application of butachlor 1.0 kg/ha along with hand weedings proved to be economical.

Email

madhu-flori@pau.edu

Address

Department of Floriculture and Landscaping, Punjab Agricultural University, Ludhiana, Punjab 141 004
Weed management and dynamics of weed seed bank in fennel
B.S. Gohil, R.K. Mathukia, V.K. Dobariya and S.K. Chhodavadia
Short communications | DOI: 2014-46-4-24-5 | Volume: 46 Page No:399-401 |
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Abstract:

A field experiment was conducted during Rabi season of 2011-12 at Junagadh (Gujarat) to find out most effective and economical method of weed control in Rabi fennel (Foeniculum vulgare). Results revealed that besides weed free treatment, significantly higher plant height, seed and stover yields of fennel were recorded with pre-emergence application of pendimethalin at 0.90 kg/ha + post-emergence application of fenoxaprop-ethyl at 75 g/ha at 45 DAS, which was at par with pendimethalin at 0.90 kg/ha PRE + hand weeding (HW) at 45 DAS and HW twice at 15 and 45 DAS. These treatments also recorded lower weed density and dry weight of weeds along with higher net returns and B:C ratio owing to lower weed index and higher weed control efficiency. The highest depletion of weed seed bank was observed with pendimethalin at 0.90 kg/ha PRE + HW at 45 DAS.

Email

bhagirathgohil23@gmail.com

Address

College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362 001
Herbicidal activity of surfactant formulation of karanj
Neelu Singh, Sonali and Sandeep Kumar
Short communications | DOI: 2014-46-4-26 | Volume: 46 Page No:402-403 |
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Abstract:

Surface active formulation from non edible oil was evaluated for herbicidal activity against weeds, Checorium intybus and Medicago denticulata under in vitro conditions.  Different dilutions of formulation exhibited markedly variable herbicidal activities against germination and seedling growth of the target weed species. Different concentrations (1.0 – 7.5%)  inhibited the growth of shoot and root of C. intybus and M.denticulata  by 71.7 – 100, 83.3 – 97.7% and 51.17 – 100, 24 – 100%, respectively. No shoot formation was recorded in 5.0 and 7.5% dilution against C. intybus and  M. denticulate. The present study concluded that the surfactant formulations from non edible oil of Pongamia pinnata possess potential herbicidal activities against weeds. Pollution of the environment is now a major concern. Therefore, utilization of plant product based surfactant as herbicide will pave a way for possible exploitation of surfactants in weed management.

Email

singhn@icfre.org

Address

Tropical Forest Research Institute, Jabalpur, Madhya Pradesh 482 021

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