| 水旱轮作下长期免耕和施用有机肥对土壤某些肥力性状的影响 |
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| 引用本文： | 徐阳春,沈其荣,雷宝坤,储国良,王全洪.水旱轮作下长期免耕和施用有机肥对土壤某些肥力性状的影响[J].应用生态学报,2000,11(4):549-552. |
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| 作者姓名： | 徐阳春 沈其荣 雷宝坤 储国良 王全洪 |
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| 作者单位： | 1. 南京农业大学资源与环境科学学院,农业部作物生长与调控重点实验室,南京,210095
2. 江苏省丘陵地区镇江农业科学研究所,句容,212400 |
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| 基金项目： | 国家自然科学基金重点资助项目!(39830 2 2 0 ) |
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| 摘 要： | １９８３年６月至１９９７年１０月进行的水旱轮作下连续免耕并配合施用有肥料的长期定位田间试验研究结果表明，长期免耕和施肥造成土壤养分的表层富集，０－５ｃｍ土层有机磷、全氮、速效氮含量显著增加，而５－１０ｃｍ和１０－２０ｃｍ土层上述养分含量明显低于常规耕翻处理；免耕对土壤结构破坏少，使０－２０ｃｍ土层水稳性团粒结构增多，综合各项肥力性状，不同施肥处理对提高土壤肥力的贡献为：猪粪〉秸秆〉绿肥〉化肥〉不施
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| 关 键 词： | 水旱轮作 免耕 有机肥料 土壤肥力 |
Effect of long-term no-tillage and application of organic manure on some properties of soil fertility in rice/wheat rotation |
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| XU Yangchun,SHEN Qirong and LEI Baokun.Effect of long-term no-tillage and application of organic manure on some properties of soil fertility in rice/wheat rotation[J].Chinese Journal of Applied Ecology,2000,11(4):549-552. |
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| Authors: | XU Yangchun SHEN Qirong and LEI Baokun |
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| Institution: | College of Resources and Environmental Sciences, Nanjing Agricultural University, Key Laboratory of Crop Growth Regulation of Ministry of Agriculture, Nanjing 210095. |
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| Abstract: | A field experiment from June 1983 to October 1997 was conducted to study the effect of long-term no-tillage and application of manure on soil fertility properties. The results showed that the contents of soil organic C, total N and available N in the treatment of fourteen consecutive year no-tillage were all significantly higher in 0-5 cm soil layer, while, lower in 5-10 and 10-20 cm layers than in conventional tillage. The content of water stable aggregate in 0-20 cm layer was increased in no-tillage in that the soil structure was less destroyed. Based on various soil fertility properties, the contribution order of different fertilization treatments to soil fertility was as follows: pig manure > straw > green manure > chemical fertilizer > no fertilizer. |
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| Keywords: | Rice/wheat rotation No tillage Organic manure Soil fertility |
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