Linked Life Data

11766042

Source:http://linkedlifedata.com/resource/pubmed/id/11766042

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2001-12-18
pubmed:abstractText
The increase in the market price of sawdust makes it a less attractive bulking agent for pig manure composting. Hence, it was the aim of this project to evaluate the feasibility of co-composting pig manure with leaves with special emphasis on its effects on compost maturity and quality. Two piles were prepared with one pile (Pile A) just constituted of pig manureand sawdust at a mixing ratio of 3:2 (w/w, fresh weight), while the other one (Pile B) with pig manure, sawdust and leaves at 3:1:1 ratio (w/w, fresh weight) to achieve a C/N ratio of 30. Each 8 m3 heap was turned and mixed every 3 days to provide sufficient aeration and the moisture content was kept at 60-70% (w/w) throughout the composting period. After 49 days of composting, dissolved organic carbon (DOC), soluble NH4-N(solid), C/N(aqueous) and C/N(aqueous) of pile A decreased to <5%, 400 mgkg(-1), 20 and 6, respectively, indicating a high degree of maturity, while pile B with leaves required only 35days. Seed germination index (GI) of pile A increased to 66.5% at day 49, while pile B to 52.4% at day 35, which was higher than the phytotoxin-free level of 50% recommended for agricultural use. This demonstrated that the addition of leaves enhanced the humification process and shortened the time required for maturation and stabilization of pig manure composting. Therefore, it is recommended to co-compost pig manure with leaves to provide a means to reutilize this waste and in the same time to reduce the dependence on sawdust as a buLking agent.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0959-3330
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1203-12
pubmed:dateRevised
2007-3-21
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Co-composting of pig manure with leaves.
pubmed:affiliation
Department of Biology, Hong Kong Baptist University, Kowloon Tong, SAR, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't