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Potassium status of Indian soils: need for rethinking in research, recommendation and policy

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Title Potassium status of Indian soils: need for rethinking in research, recommendation and policy
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Creator Ramamurthy, V., Naidu, L.G.K., Ravindra Chary, G., Mamatha, D. and Singh, S.K.
 
Subject K status, Indian soils, Fertilizer misapplication, Site-specific K recommendation, Policy initiatives.
 
Description Not Available
Growing population and its need pressurize Indian agriculture to produce more from shrinking arable land. Balanced nutrition plays a key role in enhancing the productivity of crops and sustainability of production systems. Potassium is third most important plant nutrient. Recent studies showed declining status of K in majority of the soils in India. High crop K removal than K addition by farmers and imbalanced use of NPK fertilizers contributed to large-scale K mining and K deficiency in soils and crops. K fertility depletion observed in all soil types. Widespread K deficiency was identified in rice-wheat system of Indo-Gangetic plains, horticultural, plantation, ornamental, aromatic and avenue plants. The current fertilizer recommendations are obsolete, very much generalized without considering the soil types, hence need revision and revalidation. Site-specific fertilizer recommendations, if followed can minimize the fertility K depletion and maintain productivity and sustainability and also economize the fertilizer cost. Awareness on K use by farmers needs immediate action.
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Date 2020-12-26T07:06:35Z
2020-12-26T07:06:35Z
2017-12-10
 
Type Research Paper
 
Identifier Not Available
2319-7706
http://krishi.icar.gov.in/jspui/handle/123456789/43732
 
Language English
 
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Publisher Not Available