Phosphorus Composition and Phosphatase Activities in Soils Affected by Long-Term Application of Pig Manure and Inorganic Fertilizers
文献类型： 外文期刊
作者： Zhang, Guangna 1 ; Chen, Zhenhua 1 ; Zhang, Aiming 1 ; Chen, Lijun 1 ; Wu, Zhijie 4 ; Ma, Xingzhu 5 ;
作者机构： 1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Linyi Univ, Shandong Prov Key Lab Water & Soil Conservat & En, Linyi, Peoples R China
4.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
5.Heilongjiang Acad Agr Sci, Inst Soil Fertilizer & Environm Resources, Harbin, Peoples R China
关键词： Chemical fertilizers;phosphatase activities;phosphorus composition;pig manure;solution 31P NMR spectroscopy
期刊名称：COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS （ 影响因子：1.327； 五年影响因子：1.315 ）
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收录情况： SCI
摘要： The long-term (25 years) effect of using chemical fertilizers and animal manure on soil phosphorus (P) composition and phosphatase activities was investigated in this study. Results showed that pig manure applications significantly increased soil total P, Olsen P, and phosphatase activities, whereas chemical fertilizers had no significant effects on soil chemical properties and phosphatase activities. Manure applications doubled or tripled the orthophosphate concentrations as compared to chemical fertilizers. Analysis of solution P-31 nuclear magnetic resonance (NMR) spectroscopy showed that P composition in sodium hydroxide (NaOH)-ethylenediamenetetraacetic acid (EDTA) extracts was dominated by orthophosphate (59-84%), followed by phosphomonoesters (15-40%). More organic P (P-o), especially myo-inositol hexakisphosphate, was observed in soil treated with manure as compared with soil treated with chemical fertilizer
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