Bioenergy and economic analysis of soybean-based crop production systems in central India

Mandal, K G and Saha, K P and Ghosh, P K and et al, . (2002) Bioenergy and economic analysis of soybean-based crop production systems in central India. Biomass and Bioenergy, 23 (5). pp. 337-345.

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The study examines the energy requirement and energy input–output relationship of soybean-based crop production systems viz., soybean (Glycine max (L.) Merr.)–wheat (Triticum aestivum L.), soybean–mustard (Brassica juncea (L.) Czern & Coss.) and soybean–chickpea (Cicer arietinum L.) in central India. Using a pre-tested questionnaire, 135 farmers were selected through a multi-stage stratified random sampling technique. Results revealed that manures and chemical fertilizers (50.87%), seedbed preparation (18.30%) and sowing management (17.69%) consumed the bulk of the energy (operational and non-operational) for all crops, it was highest in soybean–wheat and the lowest in soybean–chickpea . Wheat, with the highest grain productivity, produced the most biomass energy and highest grain-energy productivity . The total bioenergy output of the crop production systems followed the order: soybean–wheat soybean–mustard soybean–chickpea . But this order was reversed for energy-use efficiency (EUE): soybean–chickpea (5.91)> soybean–mustard (5.86)> soybean–wheat (5.54). Specific energy was highest in soybean grain) followed by mustard seed), chickpea grain) and wheat grain) indicating that soybean is the most energy-investment intensive crop. Regarding energy intensiveness the results were contrary to EUE. Energy intensiveness was higher in wheat (1.40) followed by mustard (1.11), soybean (0.89) and chickpea (0.87) and the soybean–wheat system (1.13) emerged as the most energy-intensive system compared to soybean–mustard (0.97) and soybean–chickpea (0.88). Though the net return from soybean–wheat was marginally higher than other systems, the soybean–chickpea system is more suitable in the central ecological niche of India due to its low requirement for non-renewable resources, higher EUE and benefit–cost ratio.

Item Type: Article
Uncontrolled Keywords: Bio-energy; Economics; Soybean; Wheat; Mustard; Chickpea; Cropping system; India
Author Affiliation: Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, Madhya Pradesh, 462 038, India
Subjects: Plant Production
Divisions: General
Depositing User: Mr Siva Shankar
Date Deposited: 17 Apr 2012 05:07
Last Modified: 17 Apr 2012 05:08
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