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A Chemometric study during vermicomposting of organic wastes by employing Eisenia fetida

Author:

Rajasekara Pandian, M., Vijayarajan, M., Katheresan, S., Mohanraj, R. and Manikandan, M.

Subject Area:

Life Sciences

Abstract:

The decomposition efficiency of Eisenia fetida for vermicomposting was evaluated by using a variety of wastes such as Domestic waste, Agricultural waste, Sago waste, cow dung and poultry dropping in different compositions. This paper reports the recycling of nutrients by vermicomposting of employing earthworm (Eisenia fetida). A total of six vermicomposting units were established and dynamics of chemical and biological parameters has been studied for 42 days. The waste mixture containing domestic waste + cow dung in 1:1 ratio and mixed crop residues +Domestic waste + cow dung in 1:1:2 ratio had better fertilizer value among studied waste combinations. At the end of experiment, vermicomposts showed decrease in pH and organic C, but increase in total Kjeldhal N, total available P and total K contents. The C:N ratio of final vermicomposts also got reduced to 10.7–12.7 from 22.8 -56 in different waste combinations.

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