Effect of long-term fertilization on the transformations of water-extractable phosphorus in a fluvo-aquic soil
文献类型：期刊论文
| 作者 | Du, Changwen1; Lei, Mingjiang2; Zhou, Jianmin1; Wang, Huoyan1; Chen, Xiaoqin1; Yang, Yuhua2 |
| 刊名 | JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 174期号:1页码:20-27 |
| 关键词 | compost organic phosphorus phosphatase hydrolysis phosphorus bioavailability |
| ISSN号 | 1436-8730 |
| DOI | 10.1002/jpln.200900281 |
| 通讯作者 | Du, Changwen(chwdu@issas.ac.cn) |
| 英文摘要 | Improved information on water-extractable soil P (P(w)) and its distribution in various forms is needed to assess its bioavailability and environmental impact. This study investigated P(w) in a fluvo-aquic soil solution in relation to the continuous application of inorganic fertilizer (NPK) and wheat straw-soybean-based compost for 15 y. Phosphatase-hydrolysis techniques were used to fractionate organic P (P(o)) in water extracts of soil into phosphomonoester (P(om)) and phosphodiester (P(od)). In comparison with the noncomposted treatments, compost application significantly increased the levels of inorganic P (P(i)) and P(o). P(om) was the main form in water-extractable soil P(o) (71%-88%), in which sugar phosphate (P(os)) occupied 48%-75%, inositol hexakisphosphate (P(op)) comprised 13%-23%, and P(od) only accounted for a small percentage (11%-26%). Long-term compost application significantly increased the content of P(om), P(os), and P(od), but decreased the P(op) content; the ratio of P(om) to P(o) increased significantly in compost-treated soil, but the ratio of P(op) to P(o) and P(od) to P(o) significantly decreased. Thus, the equilibrium of phosphatase involved P transformations shifted to P(i) in compost-treated soil. The phosphomonoesterase and phosphodiesterase activities were significantly higher in compost-treated soil, which favored the transformations of P(od) into P(om) and P(om) into P(i). The ratio of P(o) to P(w) in water extracts of compost-treated soil was similar to that of control soils with no fertilizer input (CK), but was significantly lower than in NPK treatment, which demonstrated that a larger increase occurred for soil P(i) in water extracts of compost-treated soil. Long-term compost application in the fluvo-aquic soil changed the composition of P(w), promoted the rate of P transformations in soil solution, and significantly increased soil P bioavailability. |
| 收录类别 | SCI |
| WOS关键词 | TEMPERATE PASTURE SOILS ; ORGANIC PHOSPHORUS ; PHOSPHATASE HYDROLYSIS ; SWINE MANURE ; FORMS ; GRASSLAND ; PHYTATE ; ACID ; BIOAVAILABILITY ; FRACTIONATION |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000287985300003 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558918 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Du, Changwen |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Yangtze Univ, Coll Agr, Jinzhou 434025, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Changwen,Lei, Mingjiang,Zhou, Jianmin,et al. Effect of long-term fertilization on the transformations of water-extractable phosphorus in a fluvo-aquic soil[J]. JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE,2011,174(1):20-27. |
| APA | Du, Changwen,Lei, Mingjiang,Zhou, Jianmin,Wang, Huoyan,Chen, Xiaoqin,&Yang, Yuhua.(2011).Effect of long-term fertilization on the transformations of water-extractable phosphorus in a fluvo-aquic soil.JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE,174(1),20-27. |
| MLA | Du, Changwen,et al."Effect of long-term fertilization on the transformations of water-extractable phosphorus in a fluvo-aquic soil".JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE 174.1(2011):20-27. |
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来源：南京土壤研究所
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