Energy inputs and crop yield relationships for rice in Punjab

Surendra Singh, Sarjinder Singh, J.P. Mittal, C.J.S. Pannu and B.S. Bhangoo

Energy, 1994, vol. 19, issue 10, 1061-1065

Abstract: Energy inputs and crop yields of rice by 209 farmers from three villages were collected over 2 years and analysed. Relations were found between crop yield and tillage, irrigation, fertilizers, and pre-harvest or total energy inputs. The 209 farmers were divided into 25 homogeneous groups by using a cumulative cube method for the input-energy level. There are quadratic relations between rice yield and pre-harvest energy input. The yield shows Robb's parabolic relation with irrigation, fertilizer and total energy input.

Date: 1994
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:19:y:1994:i:10:p:1061-1065

DOI: 10.1016/0360-5442(94)90094-9

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