Microbial and physico-chemical analysis of composting process of wheat straw

Pan, Ieshita; Sen, S K

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DC Field	Value	Language
dc.contributor.author	Pan, Ieshita	-
dc.contributor.author	Sen, S K	-
dc.date.accessioned	2013-03-25T09:52:43Z	-
dc.date.available	2013-03-25T09:52:43Z	-
dc.date.issued	2013-01	-
dc.identifier.issn	0975-0967 (Online); 0972-5849 (Print)	-
dc.identifier.uri	http://hdl.handle.net/123456789/16482	-
dc.description	120-128	en_US
dc.description.abstract	Composting is a method of solid waste management to convert organic matter into agriculturally useful humus like substance to enhance nutritional and physical quality of soil. In an attempt to produce quality compost, studies were conducted for six months to investigate the physiological and biochemical changes during the composting of wheat straw. To monitor the composting process a consortium of bacterial isolates (Bacillus subtilis D3L/1, B. subtilis B1U/1 and Pseudomonas sp. RAT/5) (10⁷ CFU/mL) was used. After 60 d of incubation, the wheat straw turned black, showed distinct physical changes and emitted odour. Periodical analysis of C/N ratio revealed that ratio of final product was 17:1. Other parameters like NO₃^- (1.5%) and NH₄⁺ ion (0.3%) concentration along with pH (7.0±0.2), K⁺(44%) and PO₄^-3(15.46-33.18 mg/Kg) concentration were also recorded. Maximum activity of amylase together with protease and cellulase were recorded after 60 d of incubation and found to be 44.9-54, 62.28-193.02 and 29.1 U/g, respectively; whereas dehydrogenase activity reached its maximum (4168 U/g) at 30^th d. Salmonella population did not appear throughout the study period. The load of fastidious organisms was 5.3-5.7 U log₁₀ CFU/g up to 30 d that disappeared thereafter, but the coliform population was predominating. Certain fungal strains were detected with potato dextrose agar medium. Physiological, biochemical and morphological character of the final product revealed that aerated static pilling is suitable for compositing of wheat straw.	en_US
dc.language.iso	en_US	en_US
dc.publisher	NISCAIR-CSIR, India	en_US
dc.rights	CC Attribution-Noncommercial-No Derivative Works 2.5 India	en_US
dc.source	IJBT Vol.12(1) [January 2013]	en_US
dc.subject	C/N ratio	en_US
dc.subject	Composting	en_US
dc.subject	Enzyme	en_US
dc.subject	Nonpathogenic	en_US
dc.subject	Static pile	en_US
dc.title	Microbial and physico-chemical analysis of composting process of wheat straw	en_US
dc.type	Article	en_US
Appears in Collections:	IJBT Vol.12(1) [January 2013]

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