Abstract
A field investigation was carried out during kharif season in 2010 at Agronomy Department Farm,Dr.Panjabrao Deshmukh Krishi Vidyapeeth, Akola, to evaluate the energy inputs, energy output, net energy gain and output input ratio of different weed control practices in black gram. It is observed that in herbicidal treatments, pre-emergence application of pendimethalin @ 1.5 kg/ha followed by cultural treatment of two hand weedings at 15 and 30 days after sowing recorded more energy inputs, while weedy check treatment incurred minimum energy input among all the treatments. Whereas, weed free treatment computed maximum energy output and energy balance followed by pre-emergence application of pendimethalin @ 1.5 kg/ha treatment. Similarly weed free and post emergence application (15 DAS) of fenoxyprop-p-ethyl @ 0.125 kg/ha were resulted in higher energy balance per unit input and output-input ratio than weedy check treatment.
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