| 我国红壤区某些主要土类钾的含量、状态以及含钾矿物的转化规律 |
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| 引用本文： | 李庆逵,王美珠,张效年.我国红壤区某些主要土类钾的含量、状态以及含钾矿物的转化规律[J].土壤学报,1961,9(Z1):22-36. |
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| 作者姓名： | 李庆逵 王美珠 张效年 |
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| 作者单位： | 中国科学院土壤研究所;中国科学院土壤研究所;中国科学院土壤研究所 |
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| 摘 要： | 就一般农业土壤来讲,土壤中钾素的绝大部分是以原生矿物和粘土矿物的状态存在.O.T.Attoe 和 E.Truog1]把土壤钾素分为三部分:第一部分是不易为植物所利用的,主要是长石和白云母;第二部分是迟效性钾,包括黑云母和粘土矿物所固定的钾,有90%以上可以被0.5NHCl 所提出,约占土壤全钾量的 1—2%;第三部分是速效性钾,主要的是代换性钾,以及一部分有机钾.在以后的研究文献中,虽然有不断的补充和修改,但是大体上同意这样一个归纳.
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ON THE STATUS OF SOIL POTASSIUM AND THE SEQUENCE OF TRANSFORMATION OF POTASSIUM-BEARING MINERALS IN SOME IMPORTANT SOIL TYPES IN THE RED EARTH REGION OF CHINA |
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| LEE CHING-KWEI,WANG MAY-CHU and CHANG SHIAO-NIAN.ON THE STATUS OF SOIL POTASSIUM AND THE SEQUENCE OF TRANSFORMATION OF POTASSIUM-BEARING MINERALS IN SOME IMPORTANT SOIL TYPES IN THE RED EARTH REGION OF CHINA[J].Acta Pedologica Sinica,1961,9(Z1):22-36. |
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| Authors: | LEE CHING-KWEI WANG MAY-CHU and CHANG SHIAO-NIAN |
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| Institution: | Institute of Sail Science, Academia Sinica, Nanking, China;Institute of Sail Science, Academia Sinica, Nanking, China;Institute of Sail Science, Academia Sinica, Nanking, China |
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| Abstract: | Some important soil types derived from various parent materials in red earth region of China have been studied for the content and status of potassium by.chemical and mineralogical methods. The soils are grouped into three classes according to their level of aotassium nutrients. |
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