This article Citation:

Tej Pratap, V. Pratap Singh, S.P. Singh and Rekha. 2016. Effect of herbicides and their combinations on weed growth and yield of transplanted rice . Indian Journal of Weed Science : 48( 4) 356- 359.







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Volume Issue Publication year Page No Type of article
48 4 2016 356-359 Full length articles
Effect of herbicides and their combinations on weed growth and yield of transplanted rice

Tej Pratap, V. Pratap Singh, S.P. Singh and Rekha

DOI: http://dx.doi.org/10.5958/0974-8164.2016.00093.9

Email: drtpsingh2010@gmail.com
Address: Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture & Technology Pantnagar, U.S. Nagar, Uttarakhand 263 145

Keywords:

Grain yield, Herbicide combinations, Ready mix, Transplanted rice, Weed Control efficiency 



Abstract:

A field experiment was carried out at Norman E. Borlaug Crop Research Centre of G.B.P.U.A.&T, Pantnagar U.S. Nagar, Uttarakhand during Kharif season of 2012 and 2013 to find out the efficacy of different herbicide combinations in transplanted rice. The experimental site was silty clay loam in texture, medium in organic carbon (0.66%), available phosphorus (27.5 kg/ha) and potassium (243.5 kg/ha) with PH 7.3. Echinochloa colona, Echinochloa crus-galli, Leptochloa chinensis, Alternanthera sessilis, Ammania baccifera, Caesulia axillaris and Cyperus iria were the major weeds in experimental field. Bispyribac–sodium + ethoxysulfuron 25 + 18.75 g/ha having statically similar with pretilachlor 750 g/ha fb ready mix of chlorimuron-ethyl + metsulfuron-methyl 4 g/ha and bispyribac-sodium + ready mix of chlorimuron-ethyl + metsulfuron-methyl 20 + 4 g/ha resulted in significantly lowest total weed density, dry matter accumulation and highest weed control efficiency, respectively. The maximum grain yield was recorded with twice hand weeding at 25 and 45 DAT, which was statistically at par with bispyribac–sodium + ethoxysulfuron 25 +18.75 g/ha, pretilachlor 750 g/ha fb ready mix of chlorimuron-ethyl + metsulfuron-methyl 4 g/ha, bispyribac–sodium + ready mix of chlorimuron-ethyl + metsulfuron-methyl 20 + 4 g/ha and pretilachlor 750 g/ha fb ethoxysulfuron 18.75 g/ha over the weedy check.





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