| 机械作业下土壤理化性质和生态因子的变化 |
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| 引用本文： | 夏萍,任丽.机械作业下土壤理化性质和生态因子的变化[J].应用生态学报,2002,13(3):319-322. |
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| 作者姓名： | 夏萍 任丽 |
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| 作者单位： | 1. 安徽农业大学农业工程系,合肥,230036
2. 安徽省霍邱县农机学校,霍邱,237400 |
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| 基金项目： | 安徽省农业综合开发项目 (96 0 0 5 ) |
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| 摘 要： | 通过 3年对黄淮海农业机械化推广的研究 ,探讨了机械综合作业对旱作农业的影响 .结果表明 ,机械化秸秆还田、化肥深施、土壤深松和免耕覆盖等综合技术的合理配套实施 ,可以改善土壤理化性状 ,具有明显的生物学效应 .与传统作业相比 ,机械综合作业使土壤容重减少 0 .0 8g·cm-3 ,有机质含量增加12 % ,水分利用率提高 10 .1%～ 13.6 % ,小麦玉米产量增加 12 18kg·hm-2 .
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| 关 键 词： | 机械作业 土壤 生态因子 生物效应 理化因子 |
| 文章编号： | 1001-9332(2002)03-0319-04 |
| 修稿时间： | 2000年6月13日 |
Changes of soil physical,chemical and ecological factors under mechanized cultivation |
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| XIA Ping.Changes of soil physical,chemical and ecological factors under mechanized cultivation[J].Chinese Journal of Applied Ecology,2002,13(3):319-322. |
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| Authors: | XIA Ping |
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| Institution: | Anhui Agricultural University, Hefei 230036. xiapin0551@163.net |
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| Abstract: | Three-years agricultural mechanization extension project in Huang-Huai-Hai regions showed that the application of comprehensive agricultural technologies which included the return of straw and stalk to field by mechanization, deep application of fertilizer, deep plough and soil no-tillage with mulch, had an obvious biological effects. In comparing with traditional cultivation, the comprehensive mechanized cultivation could decrease soil bulk density by 0.08 g.cm-3, increase soil organic mater by 12%, improve moisture utilization by 10.1-13.6%, and increase the grain yields of wheat and corn by 1218 kg.hm-2. |
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| Keywords: | Mechanized cultivation Soil Ecological factors Biological effect |
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