Title: Weed Control Studies in Spring Rice (Oryza sativa L.) under Rainfed Low Valley Situation of Uttaranchal
Abstract: A field study carried out during spring seasons (Feb.-Sept.) of 1996–98 revealed that competition with Cyperus rotundus only on an average caused 52.5% reduction in grain yield of rice. Whereas competition with all the weeds growing with the crop caused 86.7% reduction in the grain yield, The highest weed control efficiency was obtained by weed-free condition followed by two hand weedings done at 25 and 45 days after sowing (DAS) and butachlor 1.0 kg/ha+one hand weeding 30 DAS. Butachlor 1.0 kg/ha+one hand weeding 30 DAS gave the highest return per rupee investment (1:1.57) and was at par with two hand weedings done at 25 and 45 DAS and weed-free.
Publication Year: 2001
Publication Date: 2001-01-01
Language: en
Type: article
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Cited By Count: 7
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