| 低分子量有机酸对土壤磷素的活化效应 |
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| 引用本文： | 于群英,李孝良,汪春华.低分子量有机酸对土壤磷素的活化效应[J].安徽科技学院学报,2001,15(2):13-16. |
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| 作者姓名： | 于群英 李孝良 汪春华 |
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| 作者单位： | 安徽技术师范学院,安徽,凤阳,233100 |
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| 基金项目： | 安徽省自然科学基金;00041202; |
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| 摘 要： | 用室内培养法试验了草酸 ,柠檬酸和酒石酸对土壤磷的活化作用。结果表明 :有机酸对土壤磷的活化作用明显 ,三种有机酸的活化作用草酸 >柠檬酸 >酒石酸。活化作用随有机酸浓度提高而增强 ,试验的两种土壤培养96小时 ,土壤有效磷释放便基本达到最大值。在潮土上 ,草酸、柠檬酸、酒石酸处理土壤磷素最大释放率分别为 15 0 .9%、97.6 %和 2 3 .3 %。
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| 关 键 词： | 低分子量有机酸 土壤磷素 活化效应 |
| 文章编号： | 1007-3302(2001)02-0013-04 |
Activation of Low Molecular Weight Organic- acid on Soil Phosphate |
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| YU Qun-ying,LI Xiao-liang,WANG Chun-hua.Activation of Low Molecular Weight Organic- acid on Soil Phosphate[J].Journal of Anhui Science and Technology University,2001,15(2):13-16. |
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| Authors: | YU Qun-ying LI Xiao-liang WANG Chun-hua |
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| Abstract: | The experiment adopting method of soil culture was conducted to test the activation of oxalic acid,lemon acid and tarlaric acid on Soil phosphate.The experimental results showed that the influences of low molecular weight organic-acid on activation of soil phosphate were obwious.The activation was oxalic acid>lemon acid>tarlaric acid.The activation was strengthened acid the concentration of organic acid increased.The amount of available phosphate of the soils was almost highest by 96 hours.When Fluvo-aquic soil treated with ocalic acid,lemon acid and tarlaric acid,the highest liberating rate of the soils phosphate was respectively 150.9%,97.6%,23%. |
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| Keywords: | Low molecular weight organic acid Soil phosphate Activation |
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