Weed management in soybean (Glycine max. L Merrill) in Tarai region of Uttarakhand to sustain productivity
2008
Gupta, Akansha | Saxena, S.C.
The experiment was conducted during Kharif seasons (July to November) of 2003 and 2004 to studyweed management in soybean (Glycine max. L. Merrill) in Tarai region of Uttarakhand to sustain productivity. Result indicated that in-situ mulching recorded maximum weed reduction, weed control efficiency, plant growth, yield attributes, seed yield, gross return and incremental benefit: cost ratio and it was higher than treatments like two hand weeding (HW) at 30 and 45 DAS and two hoeing at 20 and 40 DAS. The grain yield was 278.6, 14.69, and 10.85 per cent higher in in-situ mulching than in weedy (check), two-hand weeding, and two hoeing, respectively. Benefit:cost ratio was 24, 19.23 and 248.33 per cent higher in in- situ mulching than in two HW, two hoeings and weedy (check).Integration of herbicides with one HW like Pendimethalin @ 1.0 kg ai/ha PE) + one HW at 30DAS and Clomazone @1.0 kg ai/ha (PE) + one HW at 30 DAS produced significantly higher seed yield than pre-emergence and post emergence herbicides. Significantly highest protein and oil content yield was recorded in Quizalofop ethyl@ 50 g ai/ha (POE) and Pendimethalin @ 1.0 kg ai/ha (PE), which was 4.8 and 3.2 per cent higher than weedy (check), respectively.
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