Effect of weed control practices on weeds and yield of black gram (Vigna mungo).

Field investigation was carried out during kharif season of 2012 the results showed that unchecked weeds caused a reduction of 66.67% in black gram yield. Two hand weeding at 25 and 50 DAS recorded maximum number of pods /plant, number of seeds /pod, 1000 seeds weight,seed yield and higher weed control efficiency followed by Imazathapyr+Imazamox (premix) @ 50 g/ha PoE at 20 DAS. Imazathapyr+Imazamox (premix) @ 50 g/ha at PoE 20 DAS registered highest net return and B:C ratio followed by Imazathapyr +Pendimethalin (premix) @ 1000 g/ha PE. [ABSTRACT FROM AUTHOR]