Effect of Organic Sources on Soil and Leaf Nutrient Status of Sapota [Manilkara achras (Mill.) Fosberg] cv. Kalipatti

Abstract

The soil and leaf nutrients play a key role in the flowering and fruiting parameters of a plant thus contributing to yield. Thus, a study was undertaken to evaluate the effect of organic sources on the soil and leaf nutrient status of sapota [Manilkara achras (Mill.) Fosberg] cv. Kalipatti during the years 2019-20 and 2020-21. The organic sources include the combination of green manure, vermicompost, Anubhav Bio NPK consortium and microbial consortium with inorganic fertilizers as a control. It has been found that available Nitrogen content (272 kg/ha) and Potassium content (298 kg/ha) in the soil, as well as Nitrogen (2.353 %) and Potassium (1.805 %) content in leaf, were recorded maximum with the application of 50% RDN from vermicompost + 50% RDN from green manure of sun hemp + microbial consortium (AMBC I) 100 ml per tree (T8) in both the years of pooled analysis data. Whereas, treatment i.e % RDN from vermicompost + 50% RDN from green manure of cowpea + microbial consortium (AMBC I) 105 ml per tree (T9) was found to be maximum for the available phosphorus content (61.73 kg/ha) in soil and phosphorus (0.191 %) the content in leaf in both the years in pooled analysis data.