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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

Paper TypeMaximum Length (including tables and figures)
Research Article6000 words
Research note4000 words
Review8000 words
Mini-Review5000 words

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- 51 | Issue-3 (Jul-Sep) | Year 2019

Eco-efficacy of pretilachlor 50% EC in transplanted winter rice and its residual effect on lentil
Dibyendu Mondal, Anannya Ghosh, Soumen Bera, Ratikanta Ghosh and Pintoo Bandopadhyay
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00047.9 | Volume: 51 Page No:220-226 |
Address & Email | Article preview | View PFD | Download

Abstract:

A field experiment was conducted during Kharif seasons of 2014-15 and 2015-16 at Bidhan Chandra Krishi Viswavidyalaya (BCKV), West Bengal to evaluate the effect of pretilachlor 50% EC on growth of composite weed flora and productivity of winter (Kharif) rice (Oryza sativa L.). The experiment comprised of eight treatments following a randomized block design with three replications. Experimental findings revealed that hand weeding twice at 15 and 30 DAT effectively controlled the grasses, sedges and broad-leaved weeds, which recorded statistical parity with the application of pretilachlor 50% EC at 750 g/ha followed by its lower dose at 600 g/ha. Grain yield losses amounted to 31.4-50.1% due to uncontrolled weed growth as compared to different weed control treatments. Among the different herbicidal treatments, pretilachlor 50% EC at 750 and 600 g/ha recorded higher weed control efficiency, yield attributes and grain yield (4.25 and 4.20 t/ha, respectively) of rice, which did not affect the germination and seed yield of succeeding lentil crop during both the years. Besides, soil beneficial microflora was not negatively influenced in long run. Considering bio-efficacy, economics and microbial study, pretilachlor 50% EC at 600 g/ha could be a better alternative for weed management and may be recommended for obtaining a higher yield of transplanted winter rice in the Gangetic Inceptisol of West Bengal.

Email

mondal.dibyendu@bckv.edu.in

Address

Department of Agronomy, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia-741 252, West Bengal, India
Efficacy of pendimethalin and cyhalofop-butyl + penoxsulam against major grass weeds of direct-seeded rice
Kuldeep Singh, Samunder Singh and R.K. Pannu
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00048.0 | Volume: 51 Page No:227-231 |
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Abstract:

Direct-seeded rice (DSR) helps in saving water and is beneficial for soil physical health along with environmental benefits, but weeds poses a serious threat to efficient crop production. In the absence of ponded water, weeds emerge in several flushes making it difficult to manage them with a single pre- or post-emergence herbicide application.  Studies were carried out under the screen house conditions at CCS Haryana Agricultural University, Hisar, where the response of four dominant grass weeds of direct-seeded rice, viz. Echinochloa glabrescens, Leptochloa  chinensis, Eragrostis japonica and  Dactyloctenium  aegyptium was evaluated against pendimethalin and cyhalofop-butyl + penoxsulam mixture. The four grassy weed species were planted in pots replicated four time with 20 seed per plot. Pendimethalin was applied as pre-emergence at 0.25, 0.5, 1.0 and 2.0 kg/ha and cyhalofop-butyl + penoxsulam mixture was sprayed as post-emergence (PoE) (at 25 days after sowing) at 32.5, 65, 135 and 270 g/ha with the help of knapsack sprayer and control pots were maintained for each species and herbicides. Periodical observations on visual mortality (0-100 scale, where 0 = no effect and 100=complete mortality) and dry weight per pot was observed at harvest. Application of pendimethalin at 1.0 kg/ha resulted in excellent control of L. chinensis and D. aegyptium, whereas at 2.0 kg/ha application rate killed all the weeds. Cyhalofop-butyl + penoxsulam applied at 270 g/ha showed 100% mortality of E. glabrescens and L. chinensis.  However, the highest rate (270 g/ha) of this mixture had no effect on E. japonica, and provided only 20% control of D. aegyptium. Results of this study suggest that pendimethalin can be used for managing E. glabrescens, L. chinensis, E. japonica and D. aegyptium. However, cyhalofop-butyl + penoxsulam can be used as PoE in fields dominated by E. glabrescens and L. chinensis.

Email

sam4884@gmail.com

Address

Department of Agronomy, CCS Haryana Agricultural University, Hisar, Haryana 125 004, India
Mechanized weed management to enhance productivity and profitability in system of rice intensification
S.K. Singh, A. Kumar, B. Sarkar and P.K. Mishra
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00049.2 | Volume: 51 Page No:232-235 |
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Abstract:

An experiment was conducted during 3 consecutive rainy seasons of 2015 to 2017 at ICAR-Research Complex for Eastern Region, Patna to evaluate the mechanized weed management practices for enhancing the productivity in system of rice intensification (SRI) against farmers’ practice. The seven weed management treatments, viz. conoweeder thrice at 15, 25 and 35 DAT, conoweeder twice at 15 and 30 DAT, post-emergence (PoE) application of bispyribac-Na 25 g/ha (20 DAT) + conoweeder at 35 DAT, conoweeder 15 DAT + bispyribac-Na 25 g/ha (20 DAT), conoweeder on 15 DAT + bispyribac-Na 25 g/ha (20 DAT) + conoweeder 35 DAT, unweeded check and farmers’ practice were evaluated under randomized block design with three replications. Fimbristylis miliacea was the top ranking weed with the highest degree of weed infestation. Significantly the highest grain yield (5.97 t/ha) was obtained from 3 times conoweeder at 15, 25 and 35 DAT, which was at par with conoweeder twice on 15 and 30 DAT (5.40 t/ha). Integration of herbicide with mechanical weeder did not improve the weed control efficiency and grain yield over conoweeder twice on 15 and 30 DAT. The highest weed control efficiency of 93.3 and 91.7% at 60 DAT were obtained with application of conoweeder thrice at 15, 25 and 35 DAT and conoweeder twice at 15 and 30 DAT, respectively. The crop raised by SRI method produced significantly higher grain and straw yields than that of farmers’ practice except unweeded check under SRI, which was heavily infested with weeds (weed density 153.27/m2 and weed biomass 129.93 g/m2). However, in SRI, 2 times conoweeder at 15 and 30 DAT, was found to be effective and economical leading to cost saving for the farmers.

Email

santprincipal@gmail.com

Address

ICAR- Research Complex for Eastern Region, Patna, Bihar 800 014, India
Weed management in transplanted rice with special reference to Commelina benghalensis in the Kymore Plateau Satpura hills region of Madhya Pradesh
Pramod Kumar Gupta* and Ajay Kumar Tomar
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00050.9 | Volume: 51 Page No:236-239 |
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Abstract:

During 2014-17, an on-farm research trial was conducted at five farmer fields in Katni district of Madhya Pradesh to validate, refine and popularize the technology for managing Commelina benghalensis L. The study aimed to find out the efficacy of bispyribac-sodium 20 g/ha, pyrazosulfuron 20 g/ha and pendimethalin 1.5 kg/ha over farmers practice (hand weeding twice at 30 and 60 DAT) and unweeded control on the management of weeds and profitability of rice (Oryza sativa) sown in transplanted condition. Bispyribac-sodium 20 g/ha at 20-21 DAT reduced the density of C. benghalensis upto 9.8 no./m2 and dry weight upto 6.9 g/m2 and also reduced the infestation of other weeds to a significant extent. Higher values of yield attributes such as number of panicles (229/m2), grain yield (3.46 t/ha) and net returns (` 31820/ha), as well as less values of nutrient uptake by weeds (5.8 kg N, 1.1 kg P and 6.9 kg K/ha) were recorded with this herbicide compared to farmers practice.

Email

pkgtaxo@gmail.com

Address

JNKVV - Krishi Vigyan Kendra, Katni, Madhya Pradesh 483 442, India
Long-term effects of green manuring and herbicides on weeds and productivity of the rice-wheat cropping system in North-Western India
Dharam Bir Yadav*, Ashok Yadav and S.S. Punia
Research article | DOI: http://dx.doi.org/10.5958/0974-8164. | Volume: 51 Page No:240-245 |
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Abstract:

A long-term field experiment from 1999-2000 to 2015-16 at CCS Haryana Agricultural University, Regional Research Station, Karnal, Haryana, India was done to study the effect of green manuring and continuous or rotational use of herbicides on weeds and productivity of the rice-wheat cropping system. Based on data from 2008-09 onward, the density of grassy weeds in the weedy plots under green manuring (GM) (7-37 plants/m2) remained lower or equal to treatments without green manuring (WGM) (6-37 plants/m2) in rice with few exceptions. Similarly, broad-leaf weeds (BLW) and sedges under GM (0-83 plants/m2) remained lower or similar to WGM (0-106 plants/m2) across different years. In wheat, the density of Phalaris minor was higher or similar under GM (55-229 plants/m2) than WGM (45-177 plants/m2), while the converse was true for BLW (19-275 plants/m2 and 45-405 plants/m2, respectively). The most dominant weed Echinochloa crus-galli in rice and Phalaris minor in wheat did not develop any envisaged sign of herbicide resistance against continuous and rotational used herbicides in respective crops. Grain yields of rice under weed-free situations were better under GM (6.37-8.30 t/ha) than WGM (5.59-7.63 t/ha). Similarly, the grain yields of wheat were higher under GM (5.25-5.99 t/ha) than WGM (5.08-5.54 t/ha). Consequently, the overall system productivity was better under GM.

Email

dbyadav@gmail.com

Address

CCS Haryana Agricultural University, Hisar, Haryana 125 004, India
Efficacy of herbicides against canary grass and wild oat in wheat and their residual effects on succeeding greengram in coastal Bengal
Hirak Banerjee*, Sourav Garai, Sukamal Sarkar, Dibakar Ghosh, Subhasis Samanta and Manimala Mahato
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00052.2 | Volume: 51 Page No:246-251 |
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Abstract:

A field trial was conducted at Regional Research Station (coastal saline zone), BCKV, Akshaynagar, Kakdwip, South 24 Parganas (WB) during winter seasons of 2016-17 and 2017-18 to study the bio-efficacy of pinoxaden against the canary grass (Phalaris minor) and wild oat (Avena ludoviciana) in wheat and its effects on succeeding greengram crop. Application of pinoxaden at 352.9      g/ha recorded significantly greater reduction of targeted weed populations; however, it was statistically at par with its two lower doses of 156.86 and 176.47 g/ha. The higher dose of pinoxaden had greater weed control efficiency (WCE). Pinoxaden at 352.94 g/ha resulted in significantly higher grain yield compared to other treatments. Lower doses of pinoxaden at 156.9 and 176.5 g/ha were at par with hand weeding for grain yield. Therefore, the application of pinoxaden 352.94 g/ha at 30 days after sowing (DAS) can be a good option for canary grass and wild oat management in wheat - greengram sequence in coastal Bengal.

Email

hirak.bckv@gmail.com

Address

Regional Research Station (CSZ), BCKV, South 24 Parganas, West Bengal 743 347, India
Metsulfuron-methyl residues in soil and wheat under North-Western mid-hill conditions of Himalaya
Nitasha Thakur, Neelam Sharma* and Suresh Kumar
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00053.4 | Volume: 51 Page No:252-256 |
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Abstract:

A field experiment was laid out in a randomized block design consisting of metsulfuron-methyl (a herbicide) treatments at 2, 4, 8 g/ha along with control during two consecutive years to study metsulfuron-methyl degradation in soil and terminal residues in wheat straw and grain. Soil samples were collected at 0 (4 hr), 1, 3, 7, 10, 15, 30, 45, 60, 75 and 90 days after herbicide application for degradation studies. Wheat straw and grain were collected at the time of harvest for terminal residues study. The herbicide residues were quantified using high performance liquid chromatography (HPLC) equipped with UV-Vis detector using C-18 column. The degradation data generated in the present investigation during both the years indicated that higher dose of metsulfuron methyl i.e. 8 g/ha persisted in soil upto 45 days after herbicide application. The degradation was rapid and more than 90% of applied metsulfuron-methyl in soil dissipated within 15 days of application. The logarithmic plots of herbicide concentration at different doses versus time fitted first order kinetics decay curves during both years. At the time of harvest, the metsulfuron-methyl residues were non-detectable level in wheat straw and grain. Thus, the use of metsulfuron-methyl in wheat could be considered safe.

Email

sharma_neelam29@rediffmail.com

Address

Department of Agronomy, Forages and Grassland, CSKHPKV, Palampur, Himachal Pradesh 176 062, India
Pre- and post-emergence herbicides effect on growth, nodulation and productivity of greengram
Guriqbal Singh*, Harpreet Kaur Virk and Veena Khanna
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00054.6 | Volume: 51 Page No:257-261 |
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Abstract:

A field experiment was conducted during Kharif season to study the efficacy of different pre- and post-emergence herbicides for weed management in greengram. Pre-emergence (PE) application of pendimethalin + imazethapyr at 0.75 kg/ha (pre-mix) effectively reduced both the density and dry matter of weeds whereas post-emergence (PoE) application of imazethapyr 10 SL at 55     g/ha significantly reduced Cyperus rotundus. All the PE and PoE herbicides significantly reduced the dry weight of weeds at 30 and 60 days after sowing (DAS) as compared to weedy check. The highest weed control efficiency was recorded in two hand weeding (90.2%), and was followed by pendimethalin + imazethapyr (pre-mix) 0.75 kg/ha applied as PE (86.8%). PoE herbicides (imazethapyr, imazamox+ imazethapyr and clodinafop-propargyl + aciflourfen-sodium) not only suppressed the crop growth, but also exhibited antagonistic effect on root nodulation. Significantly higher seed yields were recorded under two hand weeding and pendimethalin + imazethapyr at 0.75 kg/ha (PE). Two hand weeding also recorded the highest gross and net returns, and was followed by pendimethalin + imazethapyr (pre-mix) at 0.75 kg/ha (PE). Application of pendimethalin + imazethapyr at 0.75 kg/ha (PE) also gave the highest B:C ratio, and it was followed by two hand weeding. All the PoE herbicides fetched comparatively lower returns and B:C ratio.

Email

singhguriqbal@pau.edu

Address

Punjab Agricultural University, Ludhiana, Punjab 141 004, India
Efficacy of herbicides on weeds and yield of greengram
Varsha Gupta*, Sandeepna Sharma, Deep Singh Sasode, Ekta Joshi, B.S. Kasana and Neeshu Joshi1
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00055.8 | Volume: 51 Page No:262-265 |
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Abstract:

 

The field experiments were conducted during Kharif 2016 and 2017 at Research Farm, College of Agriculture, RVSKVV, Gwalior (M.P.) to study the effective herbicide/combination of herbicides to control the problematic weeds in greengram (Vigna radiata). The experiments were laid out with ten treatments, viz. quizalofop-p-ethyl 50, 75 and 100 g/ha PoE, fenoxaprop-p-ethyl 100 g/ha PoE, pendimethalin 1000 g/ha pre-emergence (PE), pendimethalin + imazethapyr (RM) 750 and 1000 g/ha PE, imazethapyr + imazamox (RM) 80 g/ha PoE, two hand weeding at 20 and 40 DAS and weedy check in a randomized block design. The combination of imazethapyr + imazamox (RM) 80 g/ha applied as post-emergence was found to be very efficient in controlling the dominant grassy as well as broad-leaved weeds and produced maximum seed yield (993 kg/ha), and was at par with two hand weedings at 20 and 40 DAS (983 kg/ha) and combination of pendimethalin + imazethapyr 750 g/ha and 1000 g/ha PE (844 and 758 kg/ha, respectively). Application of imazethapyr + imazamox (RM) 80     g/ha PoE resulted in the highest B:C ratio (3.03), and net returns, fb pendimethalin + imazethapyr 750 g/ha PE and two hand weeding at 20 and 40 DAS.

 

Email

drvarshagupta11@gmail.com

Address

Rajmata Vijayaraje Scindia Krishi Viswa Vidhyalaya, Gwalior, Madhya Pradesh 474 002, India
Biology and large scale demonstration for management of Orobanche aegyptiaca in mustard
S.S. Punia*, Dharam Bir Yadav, Vinod Maun, Manjeet and Todarmal Punia
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00056.X | Volume: 51 Page No:266-269 |
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Abstract:

Field experiments to study the efficacy of neem cake, soil drenching of metalaxyl, post-emergence application of glyphosate at very low concentrations alone and in combination with 1% solution of ammonium sulphate and 125% of recommended fertility, were conducted  at village Ganghala (Bhiwani) during Rabi seasons of 2014-15 and  village Bidhwan (Bhiwani) during 2015-16. Feasibility of adoption of results of studies conducted earlier on use of glyphosate 25 g/ha at 30 DAS and 50 g/ha at 55 DAS is being demonstrated by multi location field trials through farmers participatory approach in different parts of state during 2010-2016. Neem cake 400 kg/ha fb pendimethalin (PPI) at 0.75 kg/ha fb HW at 60 DAS did not prove effective in minimizing density of Orobanche. Post-emergence application of glyphosate at 25 and 50 g/ha at 25 and 55 DAS, respectively showed promising results with 75- 95% control of this weed in experimental field and 76.5% on large scale demonstrations at farmers’ fields. Biotype from Ganghala (Bhiwani) was found to be most robust biotype with 5840 seeds per capsule.

Email

puniasatbir@gmail.com

Address

Department of Agronomy, CCS Haryana Agricultural University, Hisar, Haryana 125 004, India
Integrated weed management in garlic with and without rice straw mulch
D.D. Chaudhari, V.J. Patel, B.D. Patel* and H.K. Patel
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00057.1 | Volume: 51 Page No:270-274 |
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Abstract:

A field experiment was conducted at AICRP on Weed Management Farm, BACA, AAU, Anand Gujarat during two consecutive Rabi season of 2016-17 and 2017-18 on loamy sand soil to study the effect of integrated weed management in garlic with and without rice straw mulch. The experiment was laid out in Split Plot design (SPT) with three replications. Rice straw mulch 5.0     t/ha applied after planting in conjunction with either application of oxyfluorfen 240 g/ha PE fb HW at 60 DAP or tank mix application of pendimethalin 500 g/ha + oxyfluorfen 120 g/ha EPoE recorded significantly lower density and dry weight of weeds at harvest with higher weed control efficiency (91.9 and 85.9%, respectively), bulb weight (17.3 and 14.0 g/bulb, respectively), bulb yield of garlic (8.83 and 7.91 t/ha, respectively) along with the highest net return and B:C ratio.

Email

bdpatel62@yahoo.com

Address

B.A. College of Agriculture, Anand Agricultural University, Anand, Gujarat 388 110, India
Monthly nutrient uptake by weeds in different land use systems at two locations of Punjab, India
Jashanpreet Kaur*, Rajni Sharma, Sandeep Sharma1 and Jiwan
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00058.3 | Volume: 51 Page No:275-279 |
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Abstract:

In present study, biomass production and nutrient status (NPK) of weeds in three land use systems (canal bunds, fallow land and in cultivated land) at two locations (Ludhiana and Sangrur) of Punjab was analyzed throughout year (Jan-Dec 2017) at monthly interval. In case of land use systems fallow land (Sangrur) was recorded to have maximum total biomass (5.73 t/ha), nitrogen (96.9 kg/ha), phosphorus (21.5 kg/ha) and potassium (85.9 kg/ha). With respect to months, total maximum weed biomass production (7.40 t/ha), nitrogen (147.8 kg/ha), phosphorus (27.8 kg/ha) and potassium (125.8 kg/ha) was recorded in July. Thus from present data it is revealed that weeds which grow lavishly in fallow lands of Punjab possess high nutrient value and dry matter production of weeds in this land use system increased with heavy rainfall.

Email

jashan2705@gmail.com

Address

Department of Botany, Punjab Agricultural University, Ludhiana, Punjab 141 001, India
Heavy metal removal by greater club rush (Scirpus grossus) vs water hyacinth in a wetland ecosystem
P. Gayathri Karthikeyan* and Sansamma George
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00059.5 | Volume: 51 Page No:280-283 |
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Abstract:

Removal of heavy metals by the invasive alien weed greater club rush (Scirpus grossus L. f) in a wetland ecosystem was estimated and compared with water hyacinth (Eichhornia crassipes) to assess its efficiency as a phytoremediator. The study was conducted during October-December 2016 by collecting soil and plant samples from an industrially polluted locality in Thiruvananthapuram district, Kerala. Results showed that in both the species, the metal concentration was more in the root system than in the shoot portion. Total metal uptake pattern in greater club rush was Cu>Cr>Zn>Ni>Pb>Co>Cd>As, while in water hyacinth it was Cu>Zn>Ni>Cr>Pb>Co>As>Cd.  It was concluded that greater club rush with its huge biomass production (>30 t/ha), could remove many of the heavy metals from contaminated soils more efficiently than water hyacinth. Biological concentration factor (BCF), translocation factor (TF) and biological accumulation coefficient (BAC) calculated for assessment of heavy metal mobility also suggested that greater club rush has the potential to be utilised for phytoremediation of contaminated soils.

Email

gayathrikpappu@yahoo.com

Address

Department of Agronomy, College of Agriculture, Padannakkad, Kasaragod, Kerala 671 314, India
Development of non-powered self-propelling vertical axis inter row rotary weeder
Satya Prakash Kumar*, V.K. Tewari, C.R. Chethan, C.R. Mehta, Brajesh Nare, A.K. Chandel
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00060.1 | Volume: 51 Page No:284-289 |
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Abstract:

Maize is the third most important cereal crop in India and is most susceptible to weed management practices. Weeding is one of the costliest and laborious operations in crop cultivation. Most of the existing weeders are of horizontal type and very less work done on vertical axis rotary weeders and energy aspects of the weeding units. A study was under taken to develop non-powered self-propelling vertical axis rotary weeder to eliminate the external powering unit, which provides the energy to cut the weeds and soil. The developed weeder was tested in maize crop at 2 and 4 cm of operational depth and 15 and 30 DAS of crop growth stages. The developed weeder performed very well at all the crop growth stages and obtained a weeding efficiency of 65 to 70% with 1.98 to 5.88% of plant damage. The highest cob yield of 12.9 t/ha was recorded weeding at 15 DAS followed by 30 DAS. However a care must be taken and a safety zone i.e. a gap of 7-10 cm between machine edges to the tip of plant leaves should be maintained to avoid the plant damage. At operational depth of 2 cm the draft force required to pull the weeding unit was 6.3 kgf and obtained field capacity was 0.08 ha/h, which was higher when weeder was operated at 4 cm of operational depth. 

Email

satyaprakashkumar27@gmail.com

Address

ICAR – Central Institute of Agricultural Engineering, Bhopal, Madhya Pradesh 462 038, India
Chemical weed control of dry direct-seeded rice under zero tillage in central mid-hill region of Nepal
Achyut Gaire*, Lal Prasad Amgain1 and Dayamadi Devi Gautam
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00061.3 | Volume: 51 Page No:290-294 |
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Abstract:

The performance of different herbicides for the weed control of dry direct-seeded rice (DDSR) under zero tillage was evaluated by field experiment during rainy season of 2017 at NARC, Lalitpur, Nepal. The treatments consisted of 8 different herbicidal treatments (pendimethalin 1.0 kg/ha, pendimethalin 1 kg/ha followed by bispyribac-Na 35 g/ha, pendimethalin 1.0 kg/ha followed by (fb) tank mix of pyrazosulfuron 20 g/ha + bispyribac-Na 25 g/ha, pendimethalin 1.0 kg/ha fb 2,4-D 1.0 kg/ha, pendimethalin 1.0 kg/ha fb pyrazosulfuron 20 g/ha, pendimethalin 1.0 kg/ha fb penoxsulam 14 g/ha, pendimethalin 1.0 kg/ha fb sulfosulfuron 30 g/ha, pendimethalin 1.0 kg/ha fb 2,4-D 1.0 kg/ha under co-culture with Sesbania) and a weedy check treatment with 3 replications under randomized complete block design. Result of the experiment revealed significant reduction in the weed density and increase in rice yield due to application of herbicides. Sequential application of pendimethalin (pre) fb tank mixture of pyrazosulfuron + bispyribac-Na (post) possess higher weed control efficiency and yielded the highest rice grain yield (3.78 t/ha), which was statistically at par with pendimethalin fb 2,4-D under Sesbania co-culture (3.44 t/ha) and pendimethalin 1.0 kg/ha fb penoxsulam 14 g/ha (3.09 t/ha). Similarly, application of pendimethalin 1.0 kg/ha (pre) fb tank mixture of pyrazosulfuron 20 g/ha + bispyribac-Na 25 g/ha recorded the highest net returns of NRs. 31,760/ha and B: C ratio of 1.42 resulting to be the most economical and efficient herbicidal treatment option in DDSR under zero tillage.

Email

itthomanes01@gmail.com

Address

Nepal Agricultural Research Council, 44700, Nepal
Herbicide mixtures for weed management in wet-seeded rice
Meera V. Menon
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00062.5 | Volume: 51 Page No:295-297 |
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Abstract:

Three herbicidal mixtures, viz. triafamone 20% + ethoxysulfuron 10% (pre-mix) 67.5 g/ha, 12 days after sowing (DAS), cyhalofop-butyl+ penoxsulam 6% OD (pre-mix) 150 g/ha, 20 DAS, and fenoxaprop-p-ethyl 6.9 EC 60 g/ha+ ethoxysulfuron 15 WDG (tank mix) 15 g/ha, 20 DAS were evaluated for their efficacy against weeds in wet-seeded rice. These treatments were compared with bispyribac-sodium, hand weeding twice and unweeded control. Application of triafamone + ethoxysulfuron, and cyhalofop-butyl + penoxsulam, significantly reduced the weed biomass followed by the treatments bispyribac-sodium, and hand weeding at 60 DAS. Fenoxaprop-p-ethyl + ethoxysulfuron had significantly lower weed control efficiency, probably due to its inability to control Echinochloa crus-galli effectively. Considering rice grain and straw yields, all herbicide treatments were at par except for fenoxaprop-p-ethyl + ethoxysulfuron, which recorded significantly lower values. Among yield attributes, significantly higher number of panicles/m2 was recorded in the treatments triafamone + ethoxysulfuron, and hand weeding, followed by cyhalofop-butyl+ penoxsulam. Grain and straw yields were lowest in unweeded control

Email

meera.menon@kau.in

Address

College of Horticulture, Kerala Agricultural University, Thrissur, Kerala 680 656, India
Planting method, row arrangement and crop residue mulch influence on weed dynamics and productivity of toria mustard
V.K. Choudhary* and R. Bhagawati
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00063.7 | Volume: 51 Page No:298-301 |
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Abstract:

A field study was conducted at ICAR-Research Complex for NEH Region, Basar during 2012-13 to study the effect of planting methods, row arrangement and mulching on toria (Brassica campestris L.) and associated weeds. Results revealed that at 30 and 60 days after sowing (DAS), the weed density and weed dry biomass were lesser in ridge and furrow; among row arrangement lower weeds at 6 rows followed by 3 rows over normal row planting. However, between the mulch, at 30 DAS the lower density and dry biomass were recorded with groundnut haulm mulching at 4 t/ha over no mulch, whereas at 60 DAS, dramatically no mulch plots had lesser weeds as compared to mulched plots. The number of branches/plant, siliqua/plant, seeds/siliqua, seed and stover yields were higher in ridge and furrow at 6 rows arrangement with groundnut haulm mulch at 4 t/ha.

Email

ind_vc@rediffmail.com

Address

ICAR-Research Complex for NEH, Region, Basar, Arunachal Pradesh 791 101, India
Sowing date and weed management effects on weeds, nutrient uptake and productivity of summer greengram
Raghubar Sahu*, Kumari Sharda and S.K. Mandal
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00064.9 | Volume: 51 Page No:302-305 |
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Abstract:

A field experiment was conducted during the summer seasons of 2016 and 2017 at Banka, (Bihar) to evaluate the effect of sowing dates and weed management on weeds and productivity of summer greengram (Vigna radiata L.). The experiment was laid out in a split plot design replicated thrice. Eleven weed species, viz. Cynodon dactylon, Dactyloctenium aegyptium, Digitaria sanguinalis, Panicum repens, Cyperus rotundus, Amaranthus viridis, Celosia argentea, Commelina benghalensis, Digera arvensis, Euphorbia hirta and Trichodesma indicum infested the greengram.Two hands weedings 20 and 40 days after sowing (DAS) recorded the lowest weed density and biomass which was significantly superior over rest of the weed management treatment. Pendimethalin (1000 g/ha) 2 DAS fb one hand weeding at 20 DAS gave significantly higher plant height, pods/plant, seeds/pod and seed index, higher seed yield, maximum net returns and B:C ratio and was found at par with two hands weeding at 20 and 40 DAS. Pendimethalin (1000 g/ha) 2 DAS fb 1 hand weeding at 20 DAS recorded the highest nutrient uptake N, P and K and was at par with of pendimethalin (1000 g/ha) 2 DAS during both years of experimentation.

Email

raghubar.bhu@gmail.com

Address

Krishi Vigyan Kendra, Banka, Bihar 813 102, India
Weed management in groundnut with new herbicide molecules
B. Naveen Kumar, D. Subramanyam*, A.V. Nagavani, V. Umamahesh
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00065.0 | Volume: 51 Page No:306-307 |
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Abstract:

A field experiment was conducted to study the effect of different high efficiency herbicides as pre- and post-emergence application on weed growth, yield and economics of groundnut at Tirupati campus of Acharya N.G. Ranga Agricultural University during Rabi, 2018. Among all the weed management practices, the broad-spectrum weed control with higher pod yield and benefit-cost ratio were obtained with pre-emergence application of diclosulam 20 g/ha followed by hand weeding at 40 DAS and next best option could be the pre-emergence application of diclosulam 20 g/ha followed by cycloxydim 100 g/ha at 20 DAS in sandy loam soils.

Email

subbuagro37@gmail.com

Address

Department of Agronomy, S.V. Agricultural College, Tirupati, Andhra Pradesh 517 502, India
Scheduling weed management practices for improving weed control efficiency and bulb yield in onion
B.B. Sahoo* and P. Tripathy
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00066.2 | Volume: 51 Page No:308-311 |
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Abstract:

An experiment was conducted under All India Network Research Project on Onion and Garlic, operating at the College of Horticulture, Orissa University of Agriculture and Technology, Sambalpur, Odisha during Rabi, 2010-11 to compare the efficacy of different weed control methods in onion. The experiment was laid out in a randomized block design with eight combinations of weed management practices and replicated thrice. Results revealed that significantly highest marketable bulb yield (19.19 t/ha) and total bulb yield (22.80 t/ha) was obtained with a higher percentage ‘A’ grade bulb (34.04 %) and an average bulb weight (69.83 g) by the application of oxyfluorfen before planting + one hand weeding at 45 days after transplanting. The identical weed management practice recorded highest 66.09% of weed control efficiency along with the lowest number of monocot weeds (26.33/ m2), minimum fresh weight of weeds (40.08 g/m2) and minimum dry weight of weeds (14 g/m2). Imposition of manual hand weeding at 45 DAT facilitates a weed-free situation to the crop. Hence, it was concluded that maximum bulb yield can be obtained with the application of oxyfluorfen before planting + one hand weeding at 45 DAT due to the influence of oxyfluorfen and one manual hand weeding on monocot weeds during the crop growth period.

Email

bibhutihort@rediffmail.com

Address

All India Network Research Project on Onion & Garlic, College of Horticulture (OUAT), Sambalpur, Odisha 768025, India
Effect of mulching on weed management in areca nut in Andaman and Nicobar Islands
B. Gangaiah* and Abbubaker
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00067.4 | Volume: 51 Page No:312-318 |
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Abstract:

A field investigation was conducted during October, 2018 - March, 2019 at Port Blair, to assess the impact of seven mulching practices [areca nut leaves (chopped and unchopped), husk, silver oak leaves, and black polythene] on areca nut along with weed free and weedy check treatments in randomised complete block design (RCBD) with five replications. Tree is taken as a replication. Results revealed that weed free treatment biomass (259.1 g/m2) removed 82 kg (33.7 - 5.18 - 38.9 kg/ha of N-P-K) nutrients/ha. Black polythene mulching excluded the light supplies to weeds within 6 weeks time brought 100% weed control efficiency (WCE) and arrested the evapo-transpiration (ET) losses of weeds resulting in higher soil moisture content (SMC, %) in surface layer (0-10 cm). Organic mulches with lower WCE {77.63 (silver oak leaf mulch) - 92.93% (areca nut chopped leaf mulch)} than polythene mulching also contributed to higher SMC (0-10 cm). Mulching did not affect the SMC in deeper layer (10-30 cm). Weed free plots resulted in evaporation losses of moisture as that of ET losses of weedy check as evident form SMC. High cost of polythene mulches (` 41095/ha) when spread over its 5 year life span becomes cheaper than manual weeding (with recurring cost every year). However, due to every year organic mulching with farm generated residues soil organic matter may build up and thus enhances the water retention capacities and their ecological safety merits adoption. Soil (nutrient) and water conservation services of mulching in areca nut established in the study calls for its exploitation for weed management in islands. 

Email

bandlagangaiah1167@gmail.com

Address

ICAR-Central Island Agricultural Research Institute, Port Blair, Andaman & Nicobar Islands 744 101, India

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