| 不同耕作方式对土壤水分蓄持能力的影响 |
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| 引用本文： | 李传友,郝东生,杨立国,熊波,郭建业.不同耕作方式对土壤水分蓄持能力的影响[J].中国农学通报,2014,30(24):259-264. |
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| 作者姓名： | 李传友 郝东生 杨立国 熊波 郭建业 |
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| 作者单位： | 1. 北京市农业机械试验鉴定推广站2. 北京市密云县农机化技术推广服务站 |
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| 基金项目： | 中央财政支农项目;北京市财政专项资金项目 |
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| 摘 要： | 为了改善北京地区农田土壤结构,提高土壤蓄水保墒能力,提升农田生产能力,增加作物产量,本项目自2009年开始在北京市延庆县保护性耕作试验田开展农田深松效果研究,对比分析了免耕和免耕＋深松2种技术模式对土壤容重、含水率、水分入渗率的影响。结果表明,与免耕处理相比,免耕＋深松技术模式0~30 cm图土层内,土壤容重降低了约3.4%,稳定入渗率提高了62.5%,在0~100 cm土层内平均质量含水量增加5.9%,因此深松可提高土壤蓄水保墒能力,有助于农作物的生长。
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| 关 键 词： | 保护性耕作 深松 蓄水 犁底层 |
| 收稿时间： | 2014/1/29 0:00:00 |
| 修稿时间： | 2014/3/24 0:00:00 |
Effects of Different Tillage Methods on Soil Water Holding Capacity |
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| Institution: | Li Chuanyou, Hao Dongsheng, Yang Liguo, Xiong Bo, Guo Jianye (1.Beijing Agricultural Machinery Testing Extension Station, Beijing 100079; 2.Beijing Miyun County Agricultural Machinery Technology Extension Service Station, Beijing 101500) |
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| Abstract: | In order to improve the farmland soil structure, increase farmland＇s productivity, soil moisturecapacity and crop yield in Beijing, this project has been carried out since 2009 in conservation tillage farmlandin Yanqing, Beijing, to study the effect of subsoiling. A thorough comparative analysis of no-tillage and no-tillage＋subsoiling on soil bulk density, moisture rate, infiltration rate and crop growth and yield was conducted.The results of test indicated that compared with no-tillage, no-tillage＋ subsoiling treatment could reduce soilbulk density by 3.4% and increase the stable infiltration rate by 62.5% within 0 to 30 cm soil layer, while theaverage soil moisture content was increased by 5.9% within 0 to 100 cm soil layer. Therefore the subsoilingcouldimprove the soil water holding capacity, contributetothegrowthof crops. |
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| Keywords: | plough pan |
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