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48
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2
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2016
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181
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Full length articles
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Weed management in blackgram with pre-mix herbicides
V. Pratap Singh, Tej Pratap Singh, S.P. Singh, A. Kumar, Kavita Satyawali, Akshita Banga, Neema Bisht and R.P. Singh
DOI :
http://dx.doi.org/10.5958/0974-8164.2016.00044.7
Email :
vpratapsingh@rediffmail.com
Address :
Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand 263145
Keywords
Blackgram, Herbicides, Herbicide efficiency index, Weed persistence, Weed control,Yield
Abstract
Pre-mix combination of imazethapyr + pendimethalin at 1000 g/ha had maximum weed kill efficiency over alone application of herbicides applied as pre- or post-emergence. Similarly, the maximum grain yield (1.38 t/ha) was achieved with pre-mix combination of imazethapyr + pendimethalin at 1000 g/ha plot followed by its lower dose applied at 900 g/ha and both doses were found significantly superior over other herbicidal treatments. Supremacy of this treatment was proved by increment of grain yield to the tune of 63.3% over the weedy check and only 3.7% lesser than the hand weeding (20 and 40 DAS). Pre-mix combination of imazethapyr + pendimethalin also proved to be effective in improving other parameters like plants/m2, pods/plant, seed/pod and 100 seed weight (g).