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Nutrient Content, Uptake in Greengram and Weeds Affected by Different Planting Methods and Weed Management Practices

Department of Agronomy, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
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(Received : December 25, 2016; Accepted : March 2, 2017)


An experiment was carried out during the kharif seasons of 2014 and 2015 to find out suitable method of planting and weed management in greengram. The experiment was laid out in split plot design with three planting methods (raised bed, conventional and zero till) and nine weed management practices [Weedy check, hand weeding (15 & 30 DAS), weed free, pendimethalin @ 1000 g/ha, imazethapyr Pre @ 70 g/ha, imazethapyr Pre @ 100 g/ha, imazethapyr 3-4 leaf stage @ 70 g/ha, imazethapyr 3-4 leaf stage @ 100 g/ha and imazethapyr+imazamox (RM) 3-4 leaf stage @ 70 g/ha]. Planting methods did not affect N, P and K content in grain and straw of crop. However, during both the years of study, total uptake of N, P and K in greengram was significantly more in bed planting method. Nutrient content (N, P and K) in crop (grain and straw) was not affected by different weed management practices, however, uptake of nutrients (grain & straw) and total uptake in crop was significantly more in all weed management practices as compared to weedy check treatment. As nutrient content (N, P and K) in weeds was similar under different weed control treatments but maximum uptake of nutrients was recorded in weedy check treatment. Hand weeding at 15 and 30 DAS was found most effective in reducing uptake of nutrients by weeds.

Key words :Greengram, planting methods, weed management practices, nutrient content and uptake