| 砖红壤速效磷3种测定方法的比较 |
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| 引用本文： | 凌大炯,李燕.砖红壤速效磷3种测定方法的比较[J].广东海洋大学学报,1999(3). |
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| 作者姓名： | 凌大炯 李燕 |
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| 作者单位： | 湛江海洋大学农学院!湛江524088 |
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| 摘 要： | 用Ｏｌｓｅｎ、Ｂｒａｙ－１ 和Ｍｅｈｌｉｃｈ－３ 三种方法对不同植被下的砖红壤进行速效磷的测定比较。结果表明：种植橡胶的土壤磷，Ｂｒａｙ－１ 法和Ｍｅｈｌｉｃｈ－３ 法间有较好的一致性，且呈显著相关；种植甘蔗的土壤磷，三种方法间均呈极显著相关；而种植其它植物的土壤磷，方法间的一致性较差，相关也不显著。一般情况下，建议不要用Ｍｅｈｌｉｃｈ－３ 作为砖红壤速效磷的提取剂。
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| 关 键 词： | 砖红壤 植被 速效磷 浸提剂 |
The Comparison of 3 Methods Testing Rapidly-available-phosphorus in Latosol under Different Vegetations |
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| Ling Dajiong,Li Yan.The Comparison of 3 Methods Testing Rapidly-available-phosphorus in Latosol under Different Vegetations[J].Journal of Zhanjiang Ocean University,1999(3). |
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| Authors: | Ling Dajiong Li Yan |
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| Abstract: | Three testing methods namely Olsen,Byay 1,and Mehlich 3 were compared for rapidly available phosphorus in latosol under different vegetations.The result showed that there is a good unanimity and significant correlation between Bray 1 and Mehlich 3 in testing the phosphorus applied to planting rubbers.The phosphorus in the soil growing sugarcane showed extremely significant correlation among all the 3 methods;while the phosphorus in the soil growing other plants showed no good unanimity and correlation between different methods.In general conditions,it is suggested that Mehlich 3 should not be used as an agent to extract the rapidly available phosphorus in latosol. |
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| Keywords: | Latosol Vegetation Rapidly available phosphorus Extract |
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