| Effect of different tillages on soil physical properties of dryland wheat field in the Loess Plateau |
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| DOI：10.7606/j.issn.1000-7601.2009.03.04 |
| Key Words: cultivation soil bulk density soil hardness soil macro-aggregates soil water storage capacity infiltration |
| Author Name | Affiliation | | ZHAO Hongli | Collage of Agronomy Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | LI Jun | Collage of Agronomy Northwest A ＆ F University,Yangling, Shaanxi 712100, China；State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau；Institute of Soil and Water Conservation,Yangling, Shaanxi 712100, China | | JIA Zhikuan | Collage of Agronomy Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | WNAG Chunxue | Collage of Agronomy Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | WANG Lei | Collage of Agronomy Northwest A ＆ F University,Yangling, Shaanxi 712100, China |
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| Abstract: |
| Experiment was conducted to study the effect of different tillage measures on soil physical porperties of winter wheat field.The results showed that, in no-tillage treatment, soil bulk density and soil hardness, increased;soil macro-aggregates dry sieving content increased by 3% and 5% over sub-soiling and deep plowing, but decreased by 5% compared with winter wheat soil preparatio;soil macro-aggregates wet sieving content increased by 11% and 32% over sub-soiling and deep flowing, but decreased by 42% compared with winter wheat soil preparation.At the harvest time, no-tillage could inhibit soil water evaporation, and soil water storage capacity was 373.1 mm, increasing by 17% and 8% over sub-soiling and deep plowing;with the increase of precipitation, the rate of water infiltration gradually reduced, and water infiltration rate of different tillage methods was in the order of no-tillage>sub-soiling >deep plowing. |
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