Evaluation of herbicide combinations for effective weed management in soybean {Glycine max (L.) Merrill}
Keywords:
Sulfentrazone + clomazone, soybean, total weed count, weed dry weight, yieldAbstract
A field experiment for evaluating the herbicide combinations for weed management and profitability of soybean {Glycine max (L.) Merrill} was conducted at Research Farm of Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur during the kharif season of 2023. The experiment was conducted in Randomized Block Design with three replications. The dominant weeds present in the field were Polygonum spp., Echinochloa colona, Digitaria sanguinalis, Panicum dichotomiflorum, Cyperus difformis, Bidens Pilosa, Commelina benghalensis and Ageratum conyzoides. Results indicated that among herbicide treatments, pre-emergence application of sulfentrazone + clomazone (725 g/ha) remaining statistically at par with pendimethalin + imazethapyr (800 g/ha) and hand weeding twice, significantly reduced total weed count and weed dry weight. Due to effective control of weeds, these said treatments performed in a similar way for recording significantly higher crop dry weight and contributing to significantly higher seed and straw yield.
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