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| 外源有机络合剂对土壤磷素吸附性能的影响 | |
| 引用本文： | 张宝东,贾冬艳,张广才. 外源有机络合剂对土壤磷素吸附性能的影响[J]. 辽宁农业职业技术学院学报, 2011, 13(2): 16-18 |
| 作者姓名： | 张宝东 贾冬艳 张广才 |
| 作者单位： | 1. 锦州市农产品质量检验检测中心,辽宁锦州,121017 2. 辽宁农业职业技术学院,辽宁营口,115009 3. 沈阳农业大学土地环境学院,辽宁沈阳,110866 |
| 摘 要： | 本文通过室内培养试验研究了五种外源有机络合剂（柠檬酸、腐殖酸、二乙三胺五乙酸、氨基三乙酸和类羧酸）对土壤磷素吸收性能的影响。结果表明：不同有机络合剂施人土壤后，土壤磷等温吸附曲线与Lang-muir方程拟合程度均达极显著水平，但其相关系数均有所降低，其下降幅度由大到小顺序是：二乙三胺五乙酸〉氨基三乙酸〉柠檬酸〉腐殖酸〉类羧酸；磷的最大吸附量亦均明显下降，下降幅度由大到小顺序为：氨基三乙酸〉二乙三胺五乙酸〉腐殖酸〉类羧酸〉柠檬酸；土壤磷的最大缓冲能力亦均明显降低，其中二乙三胺五乙酸和氨基三乙酸处理降低最大，其次为柠檬酸和类羧酸，再者为腐殖酸。 |
| 关 键 词： | 外源有机络合剂 磷素 吸收性能 |
Effects of Exogenous Organic Complex Agents on Adsorption of Phosphorus in Soil |
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| ZHANG Bao-dong,JIA Dong-yan,ZHANG Guang-cai. Effects of Exogenous Organic Complex Agents on Adsorption of Phosphorus in Soil[J]. Journal of Liaoning Agricultural Vocation-Technical College, 2011, 13(2): 16-18 | |
| Authors: | ZHANG Bao-dong JIA Dong-yan ZHANG Guang-cai |
| Affiliation: | ZHANG Bao-dong1,JIA Dong-yan2,ZHANG Guang-cai3(Qaulity-testing Center of Agricultura Producf of Jinxhou Jinzhou 121017 China,Liaoning Agricultural College Yingkou 115009 China) |
| Abstract: | This paper mainly reported the effects of exogenous organic complex agents(citric acid,humic acid,diethylenetriaminepentaacetic acid,nitrilotriacetic acid and quasi-carboxylic acid) on adsorption of phosphorus in soil through simulated experiment.The results showed that: After organic complexes added into soil,phosphorus specific adsorption isotherms of tested soils followed the langmuir equation very significantly.But compared to the controls,correlation coefficient all decreased.The sequences of correlati... |
| Keywords: | exogenous organic complex agent phosphorus adsorption |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |