| Effects of the conservation tillage on the physicoche mical characteristics of soil surface in the semi-arid areas of the Loess plateau |
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| DOI：10.7606/j.issn.1000-7601.2007.06.41 |
| Key Words: conservation tillage soil bulk density soil porosity soil saturated hydraulic conductivity soil organic matter |
| Author Name | Affiliation | | SUN Li-jun | College of Resources and Environmental Sciences Gansu Agricultural University,Lanzhou,Gansu 730070,China；Department of Pharmacy Wan’nan Medical College,Wuhu,Anhui 240001,China | | ZHANG Ren-zhi | College of Resources and Environmental Sciences Gansu Agricultural University,Lanzhou,Gansu 730070,China | | HUANG Gao-bao | Agronomy Faculty Gansu Agricultural University,Lanzhou,Gansu 730070,China |
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| Abstract: |
| Basing on the research of conservation tillage experiment in the semi-arid areas of the Loess plateau from 2001 to 2005,different tillage methods influent to the physical and chemical characters of the soil surface were compared and evaluated.Results showed that the treatment NTS can decrease the soil bulk density,increase the soil porosity and the soil saturated hydraulic conductivity,and enhance the soil organic matter.The NTS has the best effect for holding capacity of water and fertilizer,can create a comfortable condition for the crops. |
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