Vol. 11, Issue 12 (2022)

Energy utilization pattern is the vital characteristic for successful crop production. The aim of this study is to determine the energy input and output analysis of onion under different weed management practices has been studied at the Indira Gandhi Krishi Vishwavidyalaya (IGKV), Raipur (C.G.). Energy values were calculated by multiplying the amounts of inputs and outputs by their energy equivalents with the use of related conversion factors. The output/input ratio was determined by dividing the output value by the input. The highest bulb yield (28.33 and 25.33 t/ha) and energy output (mean 43728 MJ/ha) were registered with the stale seed bed followed by pre-emergence application of pendimethalin 750 g/ha during the year 2018-19 and 2019-20. It was also found that the pre-emergence application of oxyfluorfen 120 g/ha could be very effective in terms of energy efficiency (2.02 MJ/ha/day) and energy productivity (1.26 kg/MJ) among the different weed management practices.