Crop diversification for enhancing the productivity for food and nutritional security under the Eastern Himalayas
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Authors
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MANOJ KUMAR
Subject Matter Specialist, KVK Longleng, ICAR RC for NEH Region, Nagaland Centre,
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RAKESH KUMAR
Scientist (Agronomy), Division of Crop Research, ICAR-RC for Eastern Region, Patna 800 014
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K LILY RANGNAMEI
Principal Scientist (Agronomy), ICAR RC for NEH Region, Umiam 797 103
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ANUP DAS
Head and Senior Scientist, KVK Longleng, ICAR RC for NEH Region, Nagaland Centre, Medziphema, Nagaland 797 106
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K L MEENA
Joint Director, ICAR RC for NEH Region, Nagaland Centre Jharanapani, Nagaland
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D J RAJKHOWA
ICAR-Research Complex for NEH Region, Medziphema, Nagaland 797 106, India
Keywords:
Crop diversification, Eastern Himalayas, Economics, EnergeticsAbstract
Monocropping, low productivity, energy–use efficiency and net returns are some of the major factors that contribute to unsustainable agriculture production system in the Eastern Himalayas. Crop diversification is a sustainable option for enhancing the productivity for food and nutritional security of small and marginal farmers of the regions. A field study was carried at the farmers’ field by KVK, Longleng, Nagaland during 2013–15 to assess the most profitable rice– based system as rice–fallow, rice–toria, rice–vegetable pea (green pod), rice–tomato and rice–cabbage, respectively. Results revealed that rice yield ranges from 1.75–1.86/ha under the different cropping sequences. Significantly higher system rice equivalent yield (SREY) was recorded with rice–cabbage (30.6 t/ha) compared to other sequences. Land use efficiency (LUE), water use efficiency (WUE), system production efficiency (SPE) and system profitability had also significantly higher with rice–cabbage. The system energy returns, system net energy returns and system energy output efficiency had higher with rice–pea. Maximum values of system specific energy, system energy efficiency and energy profitability had noted with rice–fallow. Hence, it may be concluded that adoption of vegetables crops (cabbage/tomato) are the viable options for improving productivity, profitability and energy-use efficiency under foothill condition of Eastern Himalayas.Downloads
References
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