التفاصيل البيبلوغرافية
| العنوان: |
Bi-cropping of castor bean and nutri-millets optimizes system productivity, energy efficiency, and carbon footprint in rainfed alfisols of semi-arid tropics. |
| المؤلفون: |
Mohan Kumar, Revappa, Yamanura, Madival, Venkatesh, Paramesh, Narayanappa, Nagesha |
| المصدر: |
Arid Land Research & Management; 2024, Vol. 38 Issue 3, p464-488, 25p |
| مصطلحات موضوعية: |
ECOLOGICAL impact, CASTOR beans, RAGI, ENERGY consumption, ALFISOLS, LYOTROPIC liquid crystals |
| مصطلحات جغرافية: |
BENGALURU (India) |
| مستخلص: |
Intercropping enhances diversity, productivity, resilience, and soil health. To achieve these benefits of the intercropping system, drilling patterns and species mixture play a key role. Therefore, to optimize the productivity, profitability, energetics, and carbon footprint of the castor-based millet intercropping system, a field experiment was conducted for two consecutive kharif seasons (2020 − 2021 and 2021 − 2022) at the University of Agricultural Sciences, Bangalore, Karnataka (India). The results revealed that all the crops under monoculture outperformed their intercropping system for seed and stalk/stover yield. Among the different cropping systems, castor + finger millet (2:4) showed highest castor equivalent yield (CEY; 1911 kg ha−1) due to excellent land utilization efficiency (LUE; 106%), land equivalent ratio (LER; 1.13), land equivalent co-efficient (LEC; 0.32) compared to other cropping systems. Castor + finger millet (2:4) was even found superior in terms of monetary returns. Finger millet monoculture showed the highest energy consumption (10,770 MJ ha−1), energy output (96,507 MJ ha−1), and also net energy gain (85,737 MJ ha−1) compared to other cropping systems. However, it was comparable with castor + finger millet (2:4) despite its modest energy consumption (10,530 MJ ha−1). Castor monoculture showed the highest carbon (C) emission (2045 kg CO2-eq. ha−1) and also C output (1760 kg CE ha−1). While, net C gain (1210 kg CE ha−1), C efficiency (3.39 kg kg−1 CE), and C stability index (2.39) were highest in the castor + finger millet intercropping system. Consequently, the adoption of a castor + finger millet (2:4) intercropping system will be a viable alternative for achieving enhanced system productivity, and energy efficiency with lower C-footprints under semi-arid regions. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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