| 江苏省五种主要土壤的氮素供应状况和磷肥肥效的关系 |
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| 引用本文： | 刘光崧,周伟金,吴达高,李庆逵.江苏省五种主要土壤的氮素供应状况和磷肥肥效的关系[J].土壤学报,1963,11(1):25-35. |
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| 作者姓名： | 刘光崧 周伟金 吴达高 李庆逵 |
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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;中国科学院土壤研究所 |
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| 摘 要： | 有关磷肥肥效问题,近年来国内已进行了不少的试验研究。就缺磷的酸性土壤来讲,几乎各种类型的磷肥(包括过磷酸钙、钙镁磷肥和磷灰石等)都有不同程度的肥效,只是增产的幅度随作物种类和农业技术措施而有所差异。
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RESPONSE OF CROPS TO SUPERPHOSPHATE AS AFFECTED BY THE RATE OF SUPPLY OF SOIL NITROGEN AND BY THE APPLICATION OF AMMONIUM SULPHATE |
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| K. S. LIU,W. C. CHEW,T. K. Wu and C. K. LEE.RESPONSE OF CROPS TO SUPERPHOSPHATE AS AFFECTED BY THE RATE OF SUPPLY OF SOIL NITROGEN AND BY THE APPLICATION OF AMMONIUM SULPHATE[J].Acta Pedologica Sinica,1963,11(1):25-35. |
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| Authors: | K S LIU W C CHEW T K Wu and C K LEE |
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| Abstract: | Field and pot experiments were conducted on five agricultural soils from Kiangsu province of various productivity with pH values ranging from 4.5 to 7.8. Fractions of soil phosphate and rate of mineralization of soil nitrogen through incubation were measured. The soils showed a wide range of nutritive levels of phosphorus and nitrogen to these soils, various rate of ammonium sulphate and manures were applied at the foundation of superphosphate and the yields of wheat, millet, rice, soybean and pea analysed. |
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