Effect of Integrated Nutrient Management on Soil Health and Nutrient Balance Sheet of Soybean under Vertisols of Rajasthan

Background: A field experiment was conducted during kharif, 2019 at ARS farm, College of Agriculture, Ummedganj, Kota (Rajasthan). Effect of Integrated Nutrient Management on Soil Health and Nutrient Balance Sheet of soybean Under Vertisols of Rajasthan. The soil of the experimental field is clay loam having low to medium fertility status and good porosity.

Method: The experiment consisted of 10 treatments viz. T0 - Control (Absolute), T1 - RDF (20-40-40), T2 - 75% RDF + FYM (2.0 t ha-1), T3 - 50% RDF + FYM (4.0 t ha-1), T4 - 75% RDF + FYM (2.0 t ha-1) + Rhizobium, T5 - 50% RDF + FYM (4.0 t ha-1) + Rhizobium, T6 - 75% RDF + Vermicompost (1.0 t ha-1), T7 - 50% RDF + Vermicompost (2.0 t ha-1), T8 - 75% RDF + Vermicompost (1.0 t ha-1) + Rhizobium, T9 - 50% RDF + Vermicompost (2.0 t ha-1) + Rhizobium. The experiment was laid out in randomised block design and was replicated thrice.

Result: Among the nutrient management treatment, application of 50% RDF + Vermicompost (2.0 t ha-1) + Rhizobium (T9) significantly built up of the soil available nitrogen (258 kg ha-1), available phosphorus (21.67 kg ha-1) and available potassium (445.35 kg ha-1), micronutrient and organic carbon (0.59) was recorded.