| 云南省思茅地区土壤微量元素含量分布及其肥效 |
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| 引用本文： | 李松青,武秉钧,武广云,罗承刚,胡伟. 云南省思茅地区土壤微量元素含量分布及其肥效[J]. 土壤学报, 1989, 26(4): 362-370 |
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| 作者姓名： | 李松青 武秉钧 武广云 罗承刚 胡伟 |
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| 作者单位： | 思茅地区农科所;思茅地区农科所;思茅地区农科所;思茅测试分析研究所;思茅地区土肥站 |
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| 摘 要： |
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| 关 键 词： | 土壤 微量元素 含量 分布 肥效 |
THE CONTENT AND DISTRIBUTION OF TRACE ELEMENT IN THE SOILS OF SIMAO DISTRACT IN YUNNAN |
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| Li Songqin,Wu Bingjun,Wu Guangyun,Luo Chenggang and Hu Wei. THE CONTENT AND DISTRIBUTION OF TRACE ELEMENT IN THE SOILS OF SIMAO DISTRACT IN YUNNAN[J]. Acta Pedologica Sinica, 1989, 26(4): 362-370 |
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| Authors: | Li Songqin Wu Bingjun Wu Guangyun Luo Chenggang Hu Wei |
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| Affiliation: | Agricultural Insituts of Simao District, Yunnan;Agricultural Insituts of Simao District, Yunnan;Agricultural Insituts of Simao District, Yunnan;Tess and Analysis Institute of Simao District Yunnan;Soil and Fertilizer Stationo of Simao District Yunnan |
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| Abstract: | Trace element content of 1049 soil samples collected from Simao districtity Yunnan were determined.Results obtained showed that the total contents B and Cu in the soils of Simao are approximately the same as the mean contents in soils of the country,those of Mo,Zn,Mn are lower than the mean values of the country;available B,Mo,Zn are generally deficient,the samples of which the contents of B,Mo and.Zn are below critical values constitute 9l%,77%,and 52% respectively; availaible Cu and Mn are more abundant.Trace element conttnts in soils of Simao vary in a greater range,and they are distributed unevenly,being affected by genetic conditions such as parent materials,.climate relief etc.and genetic procPSS.177 field experiments in 58 sites showed significant of trace element fertilizers on crop yield increase with a the increase rate of 14.1%. |
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