Available macro nutrients (N, P, K and S) in The Soils of Chiraigaon Block of District Varanasi (U.P.) in Relation to soil Characteristics

Soil fertility evaluation of an area or region is an important aspect in context of sustainable agricultural production. The macro nutrients govern the fertility of the soils and control the yields of crops. The Chiraigaon block of district Varanasi was selected for the study. Ten representative villages were chosen and different number of surface soil samples (0–15 cm) collected and analysed for physico-chemical properties and available N, P, K and S status. Results revealed that texture of soils varied from sandy clay loam to clay. Soil samples were found low in organic carbon, available nitrogen and phosphorus while medium in potassium. About 62% of samples were found deficient in available sulphur. Significant positive correlations were found to exist between organic carbon and available N, P, K and S status of soil under study.