Dynamics of micronutrient cations in soil as influenced by long term integrated nutrient management under rice wheat cropping system in Typic Haplustept

Abstract

Rice-wheat is one of the most predominant cropping systems in India and covers an area approximately, 10.5m ha. Now, this cropping system is showing signs of stagnation in the Indo-Gangetic Plains (IGP) of India due to continuous cropping of this high nutrient exhaustive cereal-cereal based crop sequence, increased use of inorganic fertilizers in an unbalanced manner has created problem of multiple nutrient deficiencies, particularly micronutrients, diminishing soil fertility and sustainable crop yield. Cationic micronutrients are essential elements required by plants in very small quantities for their optimum growth and development. newline