ABSTRACT

Based on the soil pH, exchangeable sodium percentage, concentration and nature of soluble salts and the reclamation procedure to be adopted, salt affected soils from management point of view in India have been classified in two major categories namely: Saline soils and sodic soils, 2.96 M ha being saline and 3.77 M ha sodic/alkali in nature. This chapter addresses this issue in the light of extensive work carried out at central soil salinity research institute, Karnal, India. It includes number of strategies in respect of application of N, P, K, Zn, Mn, Mo so as to improve the soil nutritional status to get good plant growth, higher yields and better nutrient use efficiencies. The chapter also emphasizes on the role of integrated nutrient management including the crop residues for nutrient management under the sodic environment.