The object of the study was to convert biomass into in enriched vermicompost with the use of various additives like Trichoderma, PSB, cow dung and rock phosphate alone and in combination with each other. Treatments consisted of two substrata, soybean and paddy straw and six additives. Hence, twelve treatment combinations were arranged in a randomized block design (RBD) with three replications. Substrata along with additives as per treatments were allowed for partial decomposition i.e. 21 days followed by digestion by earthworm. The 200 gram of earthworms were released in each treatment. Observations with respect to duration required for vermicomposting change in composition of nitrogen, phosphorus and potassium in partially decompose matter and varmicompost over fresh substrata. Results reveal that the treatment combination of soybean stover amended with cow dung and inoculated with PSB and required only 59 days to complete the process of vermicomposting. The content of nitrogen, phosphorus and potassium increases over fresh substrata in the partially decomposition as well as in vermicomposting. The higher content of 0.76, 2.10% nitrogen, 0.36 and 0.89% phosphorus and 0.83 and 1.04% potassium with soybean straw+cow dung+PSB in partially decomposed matter and vermicompost respectively.

vermicompost, earthworm, soybean stover, paddy straw, cow dung, bio waste, partial decomposition

On the basis of findings, it is concluded that, among the substrates, soybean straw amended with cow dung and inoculated trichoderma and PSB takes least duration of 59 days (including 21 days of partial decomposition) for completion of vermicomposting process. The nutrient content with respect to nitrogen, phosphorus as well as potassium increased over fresh and partial decomposed matter in vermicompost. Thus, it could be concluded that the process of vermicomposting is advantageous for enhancing matter nutrient content in final product of vermicomposting.

S.B. Agrawal, Ruchi Gupta, Shani Gulaiya, Ashish Kumar and Priya Kochale (2021). Nutrient content in Fresh substrata, Partial Decomposed Matter and Vermicompost under different Treatments. Biological Forum – An International Journal, 13(2): 732-736.