Document Detail


Sunflower hulls degradation by co-composting with different nitrogen sources.
MedLine Citation:
PMID:  17067123     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The decomposition of sunflower hull and its mixtures was examined under mesophilic (M) and thermophilic (T) temperatures during 100 days. Thermophilic conditions were used to define the composting process. Vetch, alfalfa and ammonium nitrate were used as nitrogen co-substrates, in 6 treatments: sunflower hulls alone (C), sunflower hulls plus ammonium nitrate (CN), sunflower hulls plus alfalfa (CA), sunflower hulls plus alfalfa and ammonium nitrate (CAV), sunflower hulls plus vetch (CV), sunflower hulls plus vetch and ammonium nitrate (CVN). Total organic carbon (TOC), oxidizable carbon (OC), dry matter, ashes content, total nitrogen (N), cellulose, hemicellulose, lignin, pH, electrical conductivity and C to N ratio were measured to asses the efficiency of the composting process and to determine the best amendment. Results show that sunflower hulls (Sh) treatment with the organic amendments had a better response than the inorganic ones. This was concluded from the variation in the fiberfractions, the decrease in dry matter and the major decrease in C to N ratio.
Authors:
M M Conghos; M E Aguirre; R M Santamaría
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental technology     Volume:  27     ISSN:  0959-3330     ISO Abbreviation:  Environ Technol     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-10-27     Completed Date:  2007-01-11     Revised Date:  2007-03-21    
Medline Journal Info:
Nlm Unique ID:  9884939     Medline TA:  Environ Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  969-78     Citation Subset:  IM    
Affiliation:
Comisión de investigaciones Científicas de la Provincia de Buenos Aires, San Andrés s/n, Altos Palihue, Bahía Blanca, Argentina.
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MeSH Terms
Descriptor/Qualifier:
Biodegradation, Environmental
Helianthus / metabolism*
Nitrogen / chemistry*
Seeds / chemistry,  metabolism*
Soil*
Temperature
Time Factors
Waste Management / methods*
Chemical
Reg. No./Substance:
0/Soil; 7727-37-9/Nitrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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