Impact of zero tillage on available nutrients status on pearlmillet wheat cropping system

Abstract

This study was conducted by collecting the surface soil samples from prominent pearlmillet-wheat cropping system of Haryana state locating in similar agro ecological regions under two different tillage system with same soil types. The samples are collected from two different depth considered as surface and subsurface. The results revealed that the organic carbon content of soil was higher under zero tillage system soil than conventional soil conditions. The organic carbon content and available N, P, S was found higher under zero tillage system as compared to conventional tillage system. Similarly, micronutrients were found higher under zero tillage system. The available potassium was found higher under conventional tillage condition. Zinc, iron and manganese micronutrients content was found higher under zero tillage system soils than conventional tillage soils while copper content was noticed higher under conventional tillage soils. Available nutrient status of soils was observed higher where higher amount of manures and crop residues are in practices and no tillage practice increased the organic carbon content of soil and found highly correlated with the availability of nutrients in soil.