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VOL. 11, ISSUE 2 (2026)
A review of zinc management in fodder cowpea: Impact on nutrient uptake, soil fertility and economics
Authors
G Dharani, S Hemalatha, V Chandika, M Raghavendra
Abstract
Fodder cowpea (Vigna unguiculata L.) is
an important leguminous forage crop, valued for its rapid growth, high biomass
production, and superior nutritive quality, particularly under dryland and
semi-arid conditions. Among the essential micronutrients, zinc plays a crucial
role in enhancing crop growth, yield, and quality through its involvement in
enzyme activation, energy transfer, root development, nodulation, and various
metabolic processes. A comprehensive review of research findings across diverse
agro-ecological regions indicates that zinc application significantly improves
soil fertility and nutrients uptake. Optimum zinc levels ranging from 20 to 25
kg ZnSO4 ha-1 consistently recorded superior green and
dry fodder yields across seasons and soil types, with higher doses showing
marginal or at-par responses. Zinc application also influenced gross returns,
net retunes and benefit-cost ratio. Overall, the reviewed studies indicate that
balanced zinc fertilization contributing to sustainable fodder production and
soil fertility management.
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Pages:218-219
How to cite this article:
G Dharani, S Hemalatha, V Chandika, M Raghavendra "A review of zinc management in fodder cowpea: Impact on nutrient uptake, soil fertility and economics". International Journal of Food Science and Nutrition, Vol 11, Issue 2, 2026, Pages 218-219
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