CORRELATION OF AVAILABLE NUTRIENTS WITH YIELD OF RICE IN CALCAREOUS SOILAMIT KUMAR PANDEY AND ASHUTOSH SINGHAbstract Soil fertility is the function of nutrient availability in the soil. Soil properties and crop production are liable to change due to continuous cropping with long term fertilization. Correlation study is used for the study of available nutrients of agricultural soil with yield of crops. The objective of this study is to investigate the correlation between soils available nutrients and the yield of rice. The long term effect of fertilizers and manures on response of rice-wheat cropping rotation and changes in physical and chemical properties of sandy loam Typic Calciorthents was stated during rabi 1988-89 in split plot design with three replication. Four levels of chemical fertilizer were taken as main plot treatment and four levels of organic sources on nutrients were taken as sub plot treatments. The results showed that integrated use of compost and crop residue either alone or in combination of inorganic sources of nutrients augmented higher build of soil available nutrients. Soil available N, P, P2O5, K2O and S were positively and significantly correlated and available Zn and B were negatively correlated with yield of rice crop. |