Status of Available Micronutrient Cations and their Relationship with Soil Properties in Nagpur District, Maharashtra

Two hundred surface soil samples representing different soil series and associated soils from different tehsils of Nagpur district were collected and analyzed for relevant physical, chemical soil properties and DTPA-extractable micronutrients. The results revealed that soils were sufficient in DTPA-extractable micronutrient cations except zinc which was found deficient in nearly 62% of the samples. Pearson correlation coefficients indicated positive correlation of DTPA-extractable micronutrient cations with organic carbon and negative correlation with pH, EC, CaCO₃, CEC, base saturation and clay content. Based on soil nutrient indexing approach, different tehsils of Nagpur district were classified under adequate, marginal and deficient zones of available micronutrients for soil fertility management.