This article Citation:

S.B. Yogananda, P. Thimmegowda and G.K. Shruthi . 2017. Weed management effect on growth and yield of wet direct-seeded rice in Cauvery command area of Karnataka . Indian Journal of Weed Science : 49( 3) 219- 222.







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Volume Issue Publication year Page No Type of article
49 3 2017 219-222 Full length articles
Weed management effect on growth and yield of wet direct-seeded rice in Cauvery command area of Karnataka

S.B. Yogananda, P. Thimmegowda and G.K. Shruthi

DOI: http://dx.doi.org/10.5958/0974-8164.2017.00058.2

Email: sbyogananda@gmail.com
Address: Zonal Agricultural Research Station, V.C. Farm, Mandya 571 405

Keywords:

Direct-seeded rice, Economics, Pre- and post-emergence herbicides, Sequential application



Abstract:

Field experiment was conducted during rainy seasons of 2014 and 2015 to study the effect on weed management practices in wet direct-seeded rice (Oryza sativa L.) in Cauvery command area of Karnataka under irrigated condition with eight treatments replicated thrice. Pre-emergence application of bensulfuron-methyl + pretilachlor GR (Londax Power) at 660 g/ha fb bispyribac-sodium (Nominee Gold) at 25 g/ha at 20 days after sowing (DAS) significantly reduced weed growth and recorded the higher seed yield (4.80 t/ha), net monetary returns (` 25631/ha) and B:C ratio (1.62) and it was at par with other sequential treatments, viz. pre-emergence application of pendimethalin at 1.0 kg/ha (Stomp) fb post-emergence application of bispyribac-sodium, pre-emergence application of bensulfuron-methyl + pretilachlor, application of pendimethalin as pre-emergence fb 1 HW. Uncontrolled weed growth caused 55.2% reduction in seed yield of wet seeded rice.





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