Effect of Fishwaste compost on nutrient content and uptake of black gram

Abstract

The main objective of this study was production of compost from fish waste generated from the seafood processing unit and fish market. The fish waste was acidic in pH (6.1) with EC of 3.8 dSm-1. The total N, P, K of the fish waste was 10.17, 0.20 and 0.74% respectively. It also had an appreciable amount of organic carbon content 46.22%. The calcium and magnesium content of fish waste were 1.86 and 0.15% respectively. A compost pile was created using the windrow method. The fish waste compost (FWC) was neutral in pH (7.1) with low soluble salts (EC = 0.38 dS m-1). It was 28% of organic carbon content and appreciable amount of N (1.6%), P (0.16%) and K (0.21%). A pot study was conducted to examine the effect of fish waste compost on growth and yield parameters of black gram. Among the different treatment, application of FWC @ 4t/ha (T5) enhance the growth and yield parameters of black gram.