Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/69629
DC FieldValueLanguage
dc.contributor.authorChien, S.W.C.en_US
dc.contributor.authorWang, M.C.en_US
dc.contributor.authorHsu, J.H.en_US
dc.contributor.authorSeshaiah, K.en_US
dc.date2006zh_TW
dc.date.accessioned2014-06-11T05:58:36Z-
dc.date.available2014-06-11T05:58:36Z-
dc.identifier.issn0021-8561zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/69629-
dc.description.abstractThe qualitative and quantitative characteristics of soil organic carbon (SOC) and related humic acids (HAs) extracted from the soils of field plots were investigated after 8 years of annual paddy (Oryza sativa L.) and upland maize (Zea mays L.) rotation with various fertilizations. Seven fertilization treatments were selected: Ck (no inputs); Chem (chemical fertilizer of NPK); Comp (swine compost); Comp + 33% of Chem N rate; Comp + 67% of Chem N rate; GM (legume green manure) + 33% of Chem N rate; and peat + 33% of Chem N rate. Organic and inorganic nitrogen inputs of six treatments were equivalent with respect of nitrogen content, but Comp, GM, and peat treatments were complemented with various amounts of inorganic N. After harvest of the eighth paddy crop, surface soil samples collected from the plots were subjected to soil characterizations and extraction of humic substances, which were used for chemical, spectroscopic (FTIR, C-13 NMR, ESR, X-ray diffractometry), delta C-13, and C-14 dating analyses. The yields of HAs extracted from the seven treatments were significantly different. Treatment containing persistent organic compound such as the peat + 33% N treatment increased the humification process in topsoils and produced higher yield of HA. Spectroscopic analyses revealed that fertilization treatments changed the functional groups, alkyl C, crystalline characteristics, and delta C-13 ratios of HAs and turnover rate of SOC considerably. The SOC of the peat + 33% N treatment had the highest mean residence time of 3100 years. Various fertilizer treatments are correlated with turnover rate of SOC and related HAs, which are associated with concerned carbon sequestration as well as mitigation of CO2 emission in the soil environment.en_US
dc.language.isoen_USzh_TW
dc.relationJournal of Agricultural and Food Chemistryen_US
dc.relation.ispartofseriesJournal of Agricultural and Food Chemistry, Volume 54, Issue 18, Page(s) 6790-6799.en_US
dc.relation.urihttp://dx.doi.org/10.1021/jf061275men_US
dc.subjectsoil organic carbonen_US
dc.subjecthumic aciden_US
dc.subjectcrop rotationen_US
dc.subjectfertilizationen_US
dc.subjectturnoveren_US
dc.subjectrateen_US
dc.subjectcarbon sequestrationen_US
dc.subjectlong-term maizeen_US
dc.subjectmatter fractionsen_US
dc.subjectland-useen_US
dc.subjectc-13en_US
dc.subjectsubstancesen_US
dc.subjectgrasslanden_US
dc.subjectstabilizationen_US
dc.subjectspectroscopyen_US
dc.subjectcultivationen_US
dc.subjectabundanceen_US
dc.titleInfluence of fertilizers applied to a paddy-upland rotation on characteristics of soil organic carbon and humic acidsen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1021/jf061275mzh_TW
Appears in Collections:期刊論文
文件中的檔案:

取得全文請前往華藝線上圖書館



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.