Energy assessment of different rice-based cropping systems under irrigated condition of eastern Uttar Pradesh, India
DOI:
https://doi.org/10.59797/ija.v70i1.6329Keywords:
Energy input, Eenergy intensity, Energy output, Energy net return, Rice-based cropping system, Use efficiencyAbstract
In an on-farm field experiment conducted over the consecutive years of 2021–23 at Kumarganj, Ayodhya, Uttar Pradesh, ten different rice -based crop sequences were evaluated for their performance inform of energy inputoutput dynamics, energy use efficiency productivity and sustainability. The sequences included: rice-wheat-fallow, rice-wheat-greengram, rice-frenchbean-greengram, rice-gram-cowpea, rice-mustard-greengram, rice-linseedblackgram, rice-berseem-sudanchari, rice-cowpea-oat-maize + cowpea, rice-cauliflower-okra, and rice-potatocowpea (vegetable). Among these, rice-potato-cowpea (vegetable) sequence had the highest energy input at 53.58 x 10³ MJ/ha. However, the maximum energy output was achieved with fodder-based rice cropping systems, recording 341.02 x 10³ MJ/ha during first year and 331.84 x 10³ MJ/ha in the second year. The highest energy use efficiency was observed in rice-oat-maize+cowpea and rice-berseem-sudanchari systems for both years. The sequence of rice-oat-maize+cowpea not only demonstrated the highest energy output efficiency at 1033 but also provided the greatest energy net return of 299 x 10³ MJ/ha and the highest energy intensity at 3.89 MJ/Rs. This was closely followed by rice-berseem-sudanchari sequence, which achieved an energy output efficiency of 941, an energy net return of 288 x 10³ MJ/ha, and an energy intensity of 3.42 MJ/Rs. When considering the combination of energy input, energy output, energy use efficiency, and energy output efficiency, the rice-oat-maize+cowpea sequence emerged as the most effective among the ten crop sequences tested. This sequence offers a comprehensive advantage by maximizing energy efficiency and economic returns, making it the best choice for the specific conditions of the experiment.
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