| 中国东南部红壤施用石灰和石膏后底土酸性的减缓 |
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| 作者姓名： | SUN Bo R. MOREAU R. POSS J. PITARD A. AVENTURIER P. FALLAVIER ZHOU Sheng-Lu |
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| 作者单位： | Institute of Soil Science, the Chinese Academy of Sciences, P. O. Box 821, Nanjing 210008 (China);;ORST OM, 911, avenue Agropolis, BP 5045, 34032 Montpellier cedex 1 (France);;ORST OM, 911, avenue Agropolis, BP 5045, 34032 Montpellier cedex 1 (France);;ORST OM, 911, avenue Agropolis, BP 5045, 34032 Montpellier cedex 1 (France);;CIRA D, 2477, avenue du Valde Montferrand, BP 5035, 34032 Montpellier cedex 1 (France);CIRA D, 2477, avenue du Valde Montferrand, BP 5035, 34032 Montpellier cedex 1 (France);Institute of Soil Science, the Chinese Academy of Sciences, P. O. Box 821, Nanjing 210008 (China); |
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| 基金项目： | *1Project supported by the National Natural Science Foundation of China (No. 49571043), Centre International des Etudientset Stegiaires (CIES), L Institute Francaisde Recherche Scientifique pour le D eveloppement en Coop ration (ORSTOM), and Centre de Coop ration Internationale en Recher che Agronomique pour le D veloppement (CIRAD). |
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| 摘 要： | Application of lime or gypsum is a common agricultural practice to ameliorate soils with low pH which prohibits crop production. Its integrated effect on soil properties in a red soil derived from Quaternary red clay in Southeast China is discussed in this paper. Application of gypsum in the topsoil without leaching raised soil pH and promoted the production of soil NH4, but lime addition had a contrary effect. Generally, application of lime and/or gypsum has little effect on soil electrical properties. Gypsum had a little effect on soil exchange complex and its effect went down to 30 cm in depth. The effect of lime reached only to 5 cm below its application layer. With leaching, Ca transferred from top soil to subsoil and decreased exchangeable Al in subsoil. Gypsum application led to a sharp decrease in soil exchangeable Mg but had no effect on K.
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| 关 键 词： | alleviation gypsum lime red soil subsoil acidity |
Alleviation of subsoil acidity of red soil in southeast China with lime and gypsum |
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| SUN Bo,R. MOREAU,R. POSS,J. PITARD,A. AVENTURIER,P. FALLAVIER,ZHOU Sheng-Lu.Alleviation of subsoil acidity of red soil in southeast China with lime and gypsum[J].Pedosphere,1998,8(2):113-120. |
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| Authors: | SUN Bo R MOREAU R POSS J PITARD A AVENTURIER P FALLAVIER and ZHOU Sheng-Lu |
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| Institution: | Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Nanjing 210008, China. |
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| Abstract: | The combined effect of lime and gypsum application on soil properties in a red soil (Acrisol) derived from Quaternary red clay in Jiangxi Province is discussed. Application of gypsum in the topsoil without leaching raised soil pH and promoted the production of soil NH4, but lime addition had a contrary effect. Application of lime and/or gypsum had little effect on soil electrical properties. Gypsum had a small effect on soil exchange complex to a depth of 30 cm. The effect of lime reached only 5 cm below its application level. With leaching, Ca transferred from topsoil to subsoil and decreased exchangeable Al in subsoil. Gypsum application led to a marked decrease in soil exchangeable Mg but had no effect on K. |
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| Keywords: | alleviation gypsum lime red soil subsoil acidity |
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