This article Citation:

S.K. Sarkar, B.C. Patra, K. Jana and K. Ghosh. 2016. Impact of different herbicides and their combinations on production economics of winter rice in West Bengal . Indian Journal of Weed Science : 48( 4) 442- 444.







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Volume Issue Publication year Page No Type of article
48 4 2016 442-444 Short communications
Impact of different herbicides and their combinations on production economics of winter rice in West Bengal

S.K. Sarkar, B.C. Patra, K. Jana and K. Ghosh

DOI: http://dx.doi.org/10.5958/0974-8164.2016.00113.1

Email: sandiptakumarsarkar16@gmail.com
Address: Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, West Bengal 741 235

Keywords:

B:C ratio, Chemical control, Economics, Hand weeding, Winter rice, Weed management



Abstract:

Hand weeding twice at 20 and 40 days after transplanting (DAT) gave best results in reducing both weed density and biomass and ultimately increased the grain (4.53 t/ha) and straw yield (5.80 t/ha). Next highest grain (4.20 t/ha) and straw yield (5.57 t/ha) was obtained with bensulfuron-methyl + pretilachlor (granules) 10 kg/ha as pre-emergence + one hand weeding at 40 DAT treatment followed by combined herbicidal treatment bensulfuron-methyl + pretilachlor (granules) 10 kg/ha as PE + bispyribac-sodium 25 g/ha as post emergent gave grain yield 4.17 t/ha and straw yield 5.53 t/ha. Considering the benefit: cost ratio, the highest value (1.92) was obtained with the performance of bensulfuron-methyl + pretilachlor as PE + metsulfuron-methyl + chlorimuron-ethyl as POE.





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