Modified Soil Fertility Ratings for Sustainable Crop Production
Rajendiran, S.*
ICAR-Indian Institute of Horticultural Research, Bengaluru, Karnataka (560 089), India
M.L. Dotaniya
ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur, Rajasthan (321 303), India
M. Vassanda Coumar
ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, Madhya Pradesh (462 038), India
DOI: NIL
Keywords: Crop productivity, Nutrient index, Plant nutrient deficiency, Soil health
Abstract
Soil ferility is key concern to improve crop producivity in poor nutrient status soils. Addiion of chemical ferilizers, organic residues, FYM, bioferilizers and green manuring etc are the main component of integrated nutrient management to improve soil health and crop yield. Most of chemical ferilizers are applied on the basis of soil test values. These values are categorized in low, medium and high classes, which is having short fall during applicaion and afected crop yield potenial of soils. In this regards, categorizaion of ferility in nine classes will provide more accuracy of chemical ferilizer applicaion during crop growth instead of exising three. Improved classes may help for judicious applicaion of ferilizers, which is mostly imported from African countries, China and US etc. Sustainable crop producion with raional applicaion of chemical ferilizers is a need of today and tomorrow agriculture.
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Reference
NAAS, 2006. Low and Declining Crop Response to Fertilizers, Policy Paper No. 35, National Academy of Agricultural Sciences, New Delhi.
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