| Influence of some agricultural practices on the soil acidification in acid precipitation areas |
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| 作者姓名： | LI Shi-xing WANG Ding-yong |
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| 作者单位： | Biochemical engineering |
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| 基金项目： | Funded by Key Project on Ecologic Environment Protect Plan of Chongqing （20020307） |
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| 摘 要： | 1 Introduction Soil acidification is one of the major course of soil degeneration, which leads to decrease in the pH value, loss of base and nutrient content by leaching, aluminum and heavy metal activation, consequently results in deforestations and decr…
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| 关 键 词： | 土壤酸化 耕作方法 酸雨 影响 土壤改良 |
| 文章编号： | 1671-8224（2006）01-0042-04 |
| 收稿时间： | 2004-09-23 |
| 修稿时间： | 2005-12-29 |
Influence of some agricultural practices on the soil acidification in acid precipitation areas |
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| LI Shi-xing WANG Ding-yong.Influence of some agricultural practices on the soil acidification in acid precipitation areas[J].Journal of Chongqing University,2006,5(1):42-45. |
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| Authors: | LI;Shi-xing;WANG;Ding-yong |
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| Abstract: | Both acid precipitation and unreasonable agricultural practices are notorious artificial factors resulting in soil acidification. To sort out reasonable agricultural practices favorable to abating soil acidification, the task of this study was directed to a long-term field trial in Chongqing, during which chemical fertilizer, organic fertilizer were applied to different crop rotations and the soil pH value was measured. The results indicated that all treatments decreased pH value in the 0 to 20 cm soil layer after ten years. Problems were more serious when chlorine-containing fertilizer, excessive chemical fertilizer and mixed fertilizer were applied. It is demonstrated that balance rates of N, P and K fertilizers, application of muck in field are advantageous to abating soil acidification. Oil plants affect soil acidification more than cereal in different crop rotation. |
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| Keywords: | soil acidification agricultural practices acid precipitation |
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