Agricultural Science Digest

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Agricultural Science Digest, volume 34 issue 2 (june 2014) : 107-110

CHANGES IN ENZYME ACTIVITIES DURING VERMICOMPOSTING AND NORMAL COMPOSTING OF VEGETABLE MARKET WASTE

Ch.S. Rama Lakshmi*, P. Chandrasekhar Rao, T. Sreelatha, M. Madhavi, G. Padmaja, A. Sireesha
1Regional Agriculture Research Station Anakapalle, Visakhapatnam-531 001, India
Cite article:- Lakshmi* Rama Ch.S., Rao Chandrasekhar P., Sreelatha T., Madhavi M., Padmaja G., Sireesha A. (2024). CHANGES IN ENZYME ACTIVITIES DURING VERMICOMPOSTING AND NORMAL COMPOSTING OF VEGETABLE MARKET WASTE. Agricultural Science Digest. 34(2): 107-110. doi: 10.5958/0976-0547.2014.00025.1.

ABSTRACT

The present investigation was carried out at changes in enzyme activities during composting which offers a promising solution for assessment of quality of compost. The results revealed that, in both the composting methods the enzyme activity decreased with increasing the composting period. However per cent decrease from initial to a particular period of time was more in vermicomposting than conventional composting and maximum activity was recorded in vermicomposting than conventional composting. The dehydrogenase activity was 79 and 44 mg TPF produced g-1hr-1 at 30 and 60 days of vermicomposting, where as in conventional composting at 30 and 110 days it was 36 to 29 mg TPF produced g-1hr-1. The acid and alkaline phosphatase activity (mg PNP released g-1hr-1) did not significantly changes with incubation in both the composting methods. However more phosphatase activity was recorded in vermicomposting than conventional composting and it was 48 and 26 % increase of acid and alkaline phosphatase activity in vermicomposting than conventional composting. The present study revealed that the vermicomposting of vegetable market waste recorded higher enzyme activities than conventional method of composting and low enzyme activity at maturity compared to initial stages of composting.

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