| 聚丙烯酰胺处理土壤不同粒径团聚体中磷吸附和解析特性的研究(英文) |
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| 引用本文： | 杨雪芹,王旭东. 聚丙烯酰胺处理土壤不同粒径团聚体中磷吸附和解析特性的研究(英文)[J]. 农业科学与技术, 2008, 9(3): 149-152 |
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| 作者姓名： | 杨雪芹 王旭东 |
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| 作者单位： | [1]河南科技学院; [2]西北农林科技大学资源环境学院 |
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| 摘 要： | [Objective]The research aimed to provide scientific reference for reasonable utilization of polyacrylamide(PAM).[Method]After PAM treatment,the soil aggregates were classified through dry sieve analysis and the adsorption capacity and desorption capacity of all soil aggregates to phosphorus at different phosphorus concentrations were analyzed.[Result] The phosphorus adsorption and desorption of soil sample treated by PAM declined. The amount of phosphorus adsorption increased with the increase of phosphorus concentration and this increase was fast in low phosphorus concentration area but slow in high phosphorus concentration area.At different phosphorus concentrations,adsorption showed a へ shape changing trend.The phosphorus adsorption was related to phosphorus concentration and the 2-3 mm aggregate had the highest desorption rate while 0.1-0.25 mm aggregate and 0.45-1 mm aggregate had lowest desorption rate.[Conclusion]The PAM treatment generated significant influence on phosphorus adsorption and analytic features of aggregate in all size fractions.
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| 关 键 词： | Lou soil Polyacrylamide(PAM) Aggregate Phosphorus Adsorption Desorption |
Study on the Effects of Polyacrylamide on Phosphorus Adsorption and Desorption Characteristics of Soil Aggregates |
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| YANG Xue-qin,WANG Xu-dong. Study on the Effects of Polyacrylamide on Phosphorus Adsorption and Desorption Characteristics of Soil Aggregates[J]. Agricultural Science ＆ Technology, 2008, 9(3): 149-152 |
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| Authors: | YANG Xue-qin WANG Xu-dong |
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| Affiliation: | YANG Xue-qin1, WANG Xu-dong2 1. Henan Institute of Science and Technology,Xinxiang 453003; 2. College of Resources and Environment,Northwest A & F University,Yangling 712100 |
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| Abstract: | [Objective]The research aimed to provide scientific reference for reasonable utilization of polyacrylamide(PAM).[Method]After PAM treatment,the soil aggregates were classified through dry sieve analysis and the adsorption capacity and desorption capacity of all soil aggregates to phosphorus at different phosphorus concentrations were analyzed.[Result] The phosphorus adsorption and desorption of soil sample treated by PAM declined. The amount of phosphorus adsorption increased with the increase of phosphorus concentration and this increase was fast in low phosphorus concentration area but slow in high phosphorus concentration area.At different phosphorus concentrations,adsorption phosphorus concentration and the 2-3 mm aggregate had the highest desorption rate while 0.1-0.25 mm aggregate and 0.45-1 mm aggregate had lowest desorption rate.[Conclusion]The PAM treatment generated significant influence on phosphorus adsorption and analytic features of aggregate in all size fractions. |
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| Keywords: | Lou soil Polyacrylamide(PAM) Aggregate Phosphorus Adsorption Desorption |
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