Kinetics of phosphate release from three phosphate-treated soils
文献类型：期刊论文
| 作者 | Li, ST; Zhou, JM; Wang, HY; Du, CW; Chen, XQ |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2005-08-01 |
| 卷号 | 15期号:4页码:518-525 |
| 关键词 | fluvo-aquic soil paddy soil phosphate red soil release kinetics |
| ISSN号 | 1002-0160 |
| 通讯作者 | Li, ST(shtli@issas.ac.cn) |
| 英文摘要 | Phosphate release from three selected soils after treatments of 1.6 and 2.4 mmol L-1 P was investigated using sequential extractions and fitted using six kinetic models, including zero order (Z), first order (F), second order (S), parabolic diffusion (PD), two constant rate (TC), and Elovich type (ET) equations. The results showed that the rate of P release was initially rapid and then gradually declined with time. Also, P release increased with added P. Total P release followed the order: paddy soil with 2.4 mmol L-1 P > red soil with 2.4 mmol L-1 P > paddy soil with 1.6 mmol L-1 P > fluvo-aquic soil with 2.4 mmol L-1 P > fluvo-aquic with 1.6 mmol L-1 P > red soil with 1.6 mmol L-1 P. For the two * treatments P release from the paddy soils in the first extraction was 44.3% and 45.6% of total released P, respectively, which were higher than those from red and fluvo-aquic soils. The ratio of P release at the end of release time was 14.0% and 13.1% in the paddy soil treated with 1.6 and 2.4 mmol L-1 P, respectively, but only 5.1% and 9.2% in the red soil and 7.0% and 5.2% in the fluvo-aquic soil, respectively. Comparison of the coefficients of determination (R-2) indicated that ET, TC, and PD equations could describe the P release data better than Z, F, and S equations. |
| 收录类别 | SCI |
| WOS关键词 | PHOSPHORUS SORPTION ; ANION ADSORPTION ; ELOVICH EQUATION ; H SYSTEM ; DESORPTION ; KAOLINITE ; GIBBSITE ; GOETHITE ; HEMATITE ; PLAIN |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000230707200014 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558510 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Li, ST |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, ST,Zhou, JM,Wang, HY,et al. Kinetics of phosphate release from three phosphate-treated soils[J]. PEDOSPHERE,2005,15(4):518-525. |
| APA | Li, ST,Zhou, JM,Wang, HY,Du, CW,&Chen, XQ.(2005).Kinetics of phosphate release from three phosphate-treated soils.PEDOSPHERE,15(4),518-525. |
| MLA | Li, ST,et al."Kinetics of phosphate release from three phosphate-treated soils".PEDOSPHERE 15.4(2005):518-525. |
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来源：南京土壤研究所
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