Integrated Soil-Crop System Management Increases Phosphorus Concentrations and Bioavailability in a Primosol
文献类型： 外文期刊
作者： Zhang, Peng 1 ; Li, Cuilan 1 ; Xie, Xiuhong 2 ; Gao, Qiang 1 ; Zhang, Jinjing 1 ; Wang, Lichun 3 ;
作者机构： 1.Jilin Agr Univ, Coll Resource & Environm Sci, Key Lab Soil Resource Sustainable Utilizat Commod, Changchun 130118, Jilin, Peoples R China
2.Changchun Univ, Coll Landscape Architecture, Changchun 130022, Jilin, Peoples R China
3.Jilin Acad Agr Sci, Inst Agr Resources & Environm, Changchun 130124, Jilin, Peoples R China
关键词： Total phosphorus; Olsen phosphorus; Inorganic phosphorus fractions; Organic phosphorus fractions; Solution P-31 NMR
期刊名称：JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：3.872； 五年影响因子：3.771 ）
ISSN： 0718-9516
年卷期： 2019 年 19 卷 2 期
页码：
收录情况： SCI
摘要： In recent years, integrated soil-crop system management (ISSM), i.e., using crop modeling and advanced nutrient management to redesign the cropping system, has been successfully used to improve crop yield and nutrient-use efficiency in China. However, the effects of ISSM on the properties of soils are not yet clear Based on a seven-year (2009-2016) field plot trial with continuous corn monoculture, this study compared the effects of ISSM with improved practice (IP), high-yield practice (HY), and current farming practice (FP) on phosphorus (P) forms in an Alluvic Primosol of Northeast China by using chemical and spectroscopic (P-31 NMR) analyses. The concentrations of total P and Olsen P were in the order FP < IP < HY < ISSM; the order for inorganic and organic P fractions obtained by chemical analysis was also the same except for Ca-10-P that showed an opposite order. P-31 NMR spectroscopy showed that inorganic orthophosphate, pyrophosphate, orthophosphate monoesters, and orthophosphate diesters were all higher in the surface soil in ISSM treatment than in HY, IP, and FP treatments. Our results suggest that ISSM has a positive effect on the availability of P in soil.
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