Document Detail

Mitigating global warming potentials of methane and nitrous oxide gases from rice paddies under different irrigation regimes.
MedLine Citation:
PMID:  23015326     Owner:  NLM     Status:  MEDLINE    
A field experiment was conducted in Bangladesh Agricultural University Farm to investigate the mitigating effects of soil amendments such as calcium carbide, calcium silicate, phosphogypsum, and biochar with urea fertilizer on global warming potentials (GWPs) of methane (CH4) and nitrous oxide (N2O) gases during rice cultivation under continuous and intermittent irrigations. Among the amendments phosphogypsum and silicate fertilizer, being potential source of electron acceptors, decreased maximum level of seasonal CH4 flux by 25-27 % and 32-38 % in continuous and intermittent irrigations, respectively. Biochar and calcium carbide amendments, acting as nitrification inhibitors, decreased N2O emissions by 36-40 % and 26-30 % under continuous and intermittent irrigations, respectively. The total GWP of CH4 and N2O gases were decreased by 7-27 % and 6-34 % with calcium carbide, phosphogypsum, and silicate fertilizer amendments under continuous and intermittent irrigations, respectively. However, biochar amendments increased overall GWP of CH4 and N2O gases.
Muhammad Aslam Ali; M Anamul Hoque; Pil Joo Kim
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Publication Detail:
Type:  Journal Article     Date:  2012-09-27
Journal Detail:
Title:  Ambio     Volume:  42     ISSN:  0044-7447     ISO Abbreviation:  Ambio     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-03-25     Completed Date:  2013-06-25     Revised Date:  2014-04-01    
Medline Journal Info:
Nlm Unique ID:  0364220     Medline TA:  Ambio     Country:  Sweden    
Other Details:
Languages:  eng     Pagination:  357-68     Citation Subset:  IM    
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MeSH Terms
Agricultural Irrigation / methods*
Crops, Agricultural / growth & development*
Global Warming*
Greenhouse Effect
Methane / analysis*
Nitrous Oxide / analysis*
Oryza sativa / growth & development*
Soil / chemistry,  standards
Reg. No./Substance:
0/Fertilizers; 0/Soil; K50XQU1029/Nitrous Oxide; OP0UW79H66/Methane

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

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