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Estimation and comparison of energy input–output and efficiency indices for rice–wheat agroecosystems of Doon Valley, India


Affiliations
1 Department of Natural and Applied Sciences, TERI School of Advanced Studies, 10 Institutional Area, Vasant Kunj, New Delhi 110 070, India, India
2 Department of Chemistry, D.A.V. (PG) College, Dehradun 248 001, India, India
3 Uttarakhand State Council for Science and Technology, Dehradun 248 007, India, India
 

Energy use in the rice–wheat crop production system is a major contributor to global greenhouse gas (GHG) emissions. Understanding input-wise energy flows in the production system is vital to optimize input–output and estimating GHG emissions and global warming potential. Doon Valley, India, has energy-intensive agriculture practices and a survey-based assessment was undertaken in this area covering 63 farms. According to the present study, rice and wheat production requires 63,825 and 50,799 MJ ha–1 of total energy input respectively. The main contributors were electricity, fertilizers and diesel for both crops; however, irrigation water was also a significant contributor in the case of rice. The yield per unit of energy use was relatively low which warrants better crop management practices to reduce the environmental footprint of the rice–wheat cropping system.
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  • Estimation and comparison of energy input–output and efficiency indices for rice–wheat agroecosystems of Doon Valley, India

Abstract Views: 346  |  PDF Views: 143

Authors

Gaurang Meher Diljun
Department of Natural and Applied Sciences, TERI School of Advanced Studies, 10 Institutional Area, Vasant Kunj, New Delhi 110 070, India, India
Vinay Shankar Prasad Sinha
Department of Natural and Applied Sciences, TERI School of Advanced Studies, 10 Institutional Area, Vasant Kunj, New Delhi 110 070, India, India
Meena Chamola
Department of Chemistry, D.A.V. (PG) College, Dehradun 248 001, India, India
Prashant Singh
Department of Chemistry, D.A.V. (PG) College, Dehradun 248 001, India, India
Ashutosh Mishra
Uttarakhand State Council for Science and Technology, Dehradun 248 007, India, India
Rajendra Dobhal
Uttarakhand State Council for Science and Technology, Dehradun 248 007, India, India

Abstract


Energy use in the rice–wheat crop production system is a major contributor to global greenhouse gas (GHG) emissions. Understanding input-wise energy flows in the production system is vital to optimize input–output and estimating GHG emissions and global warming potential. Doon Valley, India, has energy-intensive agriculture practices and a survey-based assessment was undertaken in this area covering 63 farms. According to the present study, rice and wheat production requires 63,825 and 50,799 MJ ha–1 of total energy input respectively. The main contributors were electricity, fertilizers and diesel for both crops; however, irrigation water was also a significant contributor in the case of rice. The yield per unit of energy use was relatively low which warrants better crop management practices to reduce the environmental footprint of the rice–wheat cropping system.

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DOI: https://doi.org/10.18520/cs%2Fv123%2Fi7%2F881-886