Release of cadmium from a triple superphosphate and a phosphate rock in soil
文献类型：期刊论文
| 作者 | Kuo, S.; Huang, B.; Bemenek, R. |
| 刊名 | SOIL SCIENCE
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 172期号:4页码:257-265 |
| 关键词 | cadmium triple superphosphate phosphate rock kinetics DTPA sequential extractions |
| ISSN号 | 0038-075X |
| DOI | 10.1097/ss.0b013e318032ab66 |
| 通讯作者 | Kuo, S.(skuo@wsu.edu) |
| 英文摘要 | Although phosphorous fertilizers containing elevated amount of cadmium (Cd) could affect Cd accumulation in soils and crops, the extent of the effect may depend on the amount of Cd added and the rate of Cd release from those fertilizers. This study examined Cd forms of a triple superphosphate (TSP) and a western phosphate rock (PR) by sequential extractions and the rate of Cd release from the fertilizers by incubation in a silt loam and subsequent extraction with diethylenetriaminepentaacetic acid (DTPA). The lability of TSP Cd was high, as evidenced by its high solubility in water (36.0%) and 1 M HC1 (57.8%). The lability of PR Cd, in contrast, was very low, with 0.1% soluble in water, 29.9% soluble in 1 M HCl, and 70.1% in the residual form. Although soil DTPA-Cd was substantially higher when the soil was treated with the TSP than with the PR at the same Cd rate, the difference narrowed as more PR Cd became extractable by DTPA with time, which reflected increased lability of PR Cd after incorporation into the soil. However, substantial amounts of the added TSP Cd (50%) and PR Cd (77.3%) remained not extractable by DTPA after 210 days of incubation. High correlation of DTPA-Cd with DTPA-zinc (Zn) in the TSP- or PR-treated soils suggested concurrent release of Zn with Cd from both P fertilizers. This should be beneficial, considering Zn can compete with Cd during bioaccumulation processes. |
| 收录类别 | SCI |
| WOS关键词 | AGRONOMIC EFFECTIVENESS ; PHOSPHORUS FERTILIZERS ; WESTERN-AUSTRALIA ; SANDY SOIL ; DISSOLUTION ; AVAILABILITY ; ZINC ; LETTUCE ; PLANTS ; RICE |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000245795900001 |
| 出版者 | LIPPINCOTT WILLIAMS & WILKINS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558665 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Kuo, S. |
| 作者单位 | 1.Washington State Univ, Dept Crop & Soil Sci, Res & Extens Ctr, Puyallup, WA 98371 USA 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kuo, S.,Huang, B.,Bemenek, R.. Release of cadmium from a triple superphosphate and a phosphate rock in soil[J]. SOIL SCIENCE,2007,172(4):257-265. |
| APA | Kuo, S.,Huang, B.,&Bemenek, R..(2007).Release of cadmium from a triple superphosphate and a phosphate rock in soil.SOIL SCIENCE,172(4),257-265. |
| MLA | Kuo, S.,et al."Release of cadmium from a triple superphosphate and a phosphate rock in soil".SOIL SCIENCE 172.4(2007):257-265. |
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来源：南京土壤研究所
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