Vol. 7, Issue 6 (2019)
Effect of weed management practices on growth and yield of direct seeded rice (Oryza Sativa L.) under Bhadra command area of Karnataka
Author(s): Abhishek Gowda CS, Narayana S Mavarkar and O Kumar
Abstract: A field experiment entitled "Weed Management in Direct Seeded Rice (Oryza sativa L.) under Bhadra command area of Karnataka" was conducted during kharif 2018 in Agricultural and Horticultural Research Station, Kathalagere with twelve treatments combination viz., inter cultivation, pre-emergent (pre em.) herbicides viz., pretilachlor 30.7 EC, pendimethalin 38.7 CS, oxadiargyl 80% WP and post-emergent (Post em.,) herbicides viz., bispyribac sodium 10% SC, chlorimuron ethyl + metsulfuron methyl 20 WP and Ethoxysulfuron 15 WDG. Four hand weeding practices at 15 days interval and weedy check were included. The experiment was laid out in RCBD and replicated thrice.The experimental results revealed that Inter cultivation fb Hand weeding at 20 and 40 DAS recorded higher growth and growth attributes. Higher grain yield (5212 kg ha-1), straw yield (5928 kg ha-1) and major nutrients uptake by crop also recorded in above mentioned treatment. These results are on par with inter-cultivation at 20 DAS fb bispyribac sodium10 % SC @ 20 g a.i ha-1. Among herbicide combination treatments, pendimethalin 38.7 CS @0.75 kg a.i ha-1 (Pre. em.) fb bispyribac sodium 10% SC @ 20 g a.i ha-1(Post. em.) recorded higher growth and yield attributes without being phytotoxic to the crop. There was no residual effect of herbicides on soil microbial population and succeeding crop.
Pages: 3089-3092 | 221 Views 56 Downloads
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How to cite this article:
Abhishek Gowda CS, Narayana S Mavarkar, O Kumar. Effect of weed management practices on growth and yield of direct seeded rice (Oryza Sativa L.) under Bhadra command area of Karnataka. Int J Chem Stud 2019;7(6):3089-3092.
