Inorganic Phosphorus Fractions and Phosphorus Availability in a Calcareous Soil Receiving 21-Year Superphosphate Application
文献类型：期刊论文
| 作者 | Wang Jun ; Liu Wen-Zhao ; Mu Han-Feng |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2010 |
| 卷号 | 20期号:3页码:304-310 |
| 关键词 | long-term experiment Olsen-P path analysis Loess Plateau |
| 通讯作者 | Liu, WZ |
| 英文摘要 | A long-term (21-year) field experiment was performed to study the responses of soil inorganic P fractions and P availability to annual fertilizer P application in a calcareous soil on the Loess Plateau of China. Soil Olsen-P contents increased by 3.7, 5.2, 11.2 and 20.6 mg P kg(-1) after 21-year annual fertilizer P application at 20, 39, 59, and 79 kg P ha(-1), respectively. Long-term fertilizer P addition also increased soil total P and inorganic P (Pi) contents significantly. The contents of inorganic P fractions were in the order of Ca(10)-P > Ca(8)-P > Fe-P > Al-P > occluded P > Ca(2)-P in the soil receiving annual fertilizer P application. Fertilizer P application increased Ca-P, Al-P and Ca(2)-P contents as well as their percentages relative to Pi. Pi application increased Fe-P and occluded P contents but nor their percentages. Soil Ca(10)-P content remained unchanged after fertilizer P application while its percentage relative to Pi declined with increasing fertilizer P rate. All Pi fractions but Ca(10)-P were correlated with Olsen-P significantly. 90% of variations in Olsen-P could be explained by Pi fractions, and the direct contribution of Ca(8)-P was predominant. Long-term annual superphosphate application would facilitate the accumulation of soil Ca(8)-P, and thus improve soil P availability. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/4774]  |
| 专题 | 水土保持研究所_水保所知识产出(1956-2013) |
| 推荐引用方式 GB/T 7714 | Wang Jun,Liu Wen-Zhao,Mu Han-Feng. Inorganic Phosphorus Fractions and Phosphorus Availability in a Calcareous Soil Receiving 21-Year Superphosphate Application[J]. PEDOSPHERE,2010,20(3):304-310. |
| APA | Wang Jun,Liu Wen-Zhao,&Mu Han-Feng.(2010).Inorganic Phosphorus Fractions and Phosphorus Availability in a Calcareous Soil Receiving 21-Year Superphosphate Application.PEDOSPHERE,20(3),304-310. |
| MLA | Wang Jun,et al."Inorganic Phosphorus Fractions and Phosphorus Availability in a Calcareous Soil Receiving 21-Year Superphosphate Application".PEDOSPHERE 20.3(2010):304-310. |
入库方式： OAI收割
来源：水土保持研究所
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