Leaf nutrient content in sapota as influenced by integrated nutrient management

Abstract

The experiment was conducted in the orchard, Department of Horticulture, Faculty of Agriculture, Annamalai University. The study was initiated in a twenty-year-old sapota orchard of cv. Kirthabarthi under normal planting density (8 m x 8 m). The experiment was laid out in Randomized Block Design with eight treatments comprising various combinations of FYM, vermicompost, RDF and EM with three replications. The treatments are T1 - Control, T2 - FYM alone @ 50 kg tree-1, T3 - Vermicompost alone @ 12.5 kg tree-1, T4 - RDF alone (1000:1000:1500 g NPK tree-1), T5 - FYM+ RDF, T6 - Vermicompost + RDF, T7 - FYM+ RDF+ EM and T8 - Vermicompost + RDF+ EM. The results of the present study revealed that the leaf nutrients content increased with the application of different treatments as compared to control. The treatment T8 recorded the maximum leaf nutrient content of nitrogen (1.69%), phosphorus (0.098%) and potassium (0.99%).