Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 23, Issue 3, 2021; Page No.(506-510)

RELATIONSHIP BETWEEN SOIL PHYSICO-CHEMICAL PROPERTIES AND NUTRIENT UPTAKE BY RICE IN CALCAREOUS SOIL

AMIT KUMAR PANDEY, ASHUTOSH SINGH AND UMESH SINGH

Abstract

The long term impact of integrated nutrient management practices on soil physical, chemical and biological properties of soil as well as crop yield were studied. The experiment is being conducted in a sandy loam (Calciorthents) at Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, since 1988 under rice-wheat cropping system. Integrated effects of chemical fertilizers with compost and crop residue augmented N, P, K, S, Zn and B uptake by crop. There was a build-up of available N, P, K and S and depletion of available Zn and B. Addition of different organic materials increases the organic carbon, porosity, water holding capacity, CEC and decreased the pH and EC irrespective of NPK levels and organic addition. These was also a considerable increase in microbial population was recorded with conjoint use of organics and chemical fertilizer. Correlation study indicated that most of the soil parameters were positively and significantly correlated with uptake of nutrients of rice. It may be concluded that conjoint use of inorganic fertilizers with compost @ 10 t ha-1 and crop residue of previous crop improve the productivity and soil health.