STUDIES ON EFFECTS OF DIFFERENT ORGANIC SUBSTRATES ON QUALITY OF VERMICOMPOST

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dc.contributor.advisorUPADHYAY, G.P.
dc.contributor.authorDIPAK, KUMAR
dc.date.accessioned2016-12-26T14:36:23Z
dc.date.available2016-12-26T14:36:23Z
dc.date.issued2013
dc.degreeM.Scen_US
dc.description.abstractABSTRACT The present investigation entitled “Studies on the effects of different organic substrates on quality of vermicompost” was planned to work out the effects of various sources of organic matter such as animal dung, food waste, and kitchen wastes, saw dust, Parthenium, lantana, bagasse, pine needle etc. on the quality of vermicompost and population dynamics of earthworms. The nutrient contents viz. nitrogen, phosphorus, potassium, calcium, magnesium, sulphur, iron, copper, manganese, and zinc were found significantly higher under lower carbon nitrogen ratio of vermicompost. The organic carbon content in the vermicompost was decreased at greater extent at lower carbon: nitrogen ratio (30:1) compared to higher one, whereas, decrease in C: N ratio was more under high C: N ratio (70:1) as compare to lower one. Other properties of vermicompost like pH, Electrical conductivity and Bulk density were also significantly higher in lower C: N ratio. Use of pine needle as substrate was found inferior compared to all other substrates, whereas, boiled pine needle proved to be better option for vermicomposting. The population dynamics of earthworm is greatly affected by quality of substrate and its carbon nitrogen ratio. The earthworm’s reproduction, growth and multiplication was also significantly affected by quality of substrates and their C: N ratio. The earthworm population in the vermicompost was higher in all the treatments at lower carbon: nitrogen ratio as compared to higher one. The quality of vermicompost and population dynamics of earthworms in vermicompost prepared from Parthenium in combination with cow dung, bagasse and kitchen waste was best compared to all other treatments. The use of boiled pine needle as substrate was found better as compared to un-boiled one for better quality. Substrates of higher carbon: nitrogen ratio produced poor quality of vermicompost and also takes more time for decomposition, however, carbon: nitrogen ratio of 30 to 40 was found optimum for the process of vermicompostingen_US
dc.identifier.other47892
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/92931
dc.language.isoenen_US
dc.subSoil Scienceen_US
dc.titleSTUDIES ON EFFECTS OF DIFFERENT ORGANIC SUBSTRATES ON QUALITY OF VERMICOMPOSTen_US
dc.typeThesisen_US
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