Chemical Weed Management in Vigna mungo

Black gram (Vigna mungo L.) is commonly known as Urdbean and is one of the important Kharif pulse crops grown across India, next to pigeon pea. In India, pulses are typically grown by small and marginal farmers under the poorly resource constraints situation. However, severe weed infestation is one of the biggest impediments for lowering the productivity of Urdbean in the rainy (Kharif) season owing to offer excessive competition by the grassy weeds and broad-leaved weeds with the crop plants for natural resources (nutrients, moisture, space, light, and CO2). Therefore, it becomes a compulsion to control the weeds as early as possible. The results revealed that weed-free treatment remained the best though found on par with herbicide layering of different molecules. Therefore, the herbicide layering of pre and post-emergent molecules namely, Pendimethalin @ 0.75 kg a.i. at 2 DAS followed by quizalofop-p-ethyl @ 0.05 kg a.i. at 20 DAS per hectare was found the most effective and produced the greater seed yield (1146 kg/ha), the total biomass of 3660 kg/ha, net returns (INR 50383/ha), and B:C ratio (3.28:1). This technology holds promise for on-farm adoption for enhancing the yield.