| The effects of different tillage methods and fertilizer treatments on yield of winter wheat and soil fertility in the loess plateau of east Gansu |
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| DOI：10.7606/j.issn.1000-7601.2010.01.45 |
| Key Words: tillage method winter wheat yield WUE soil fertility |
| Author Name | Affiliation | | ZHANG Jianjun | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China
Key Laboratory of Northwest Drought-resistant Crop Farming, Ministry of Agriculture, Lanzhou, Gansu 730070, China | | WANG Yong | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China
Key Laboratory of Northwest Drought-resistant Crop Farming, Ministry of Agriculture, Lanzhou, Gansu 730070, China | | TANG Xiaoming | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China
Key Laboratory of Northwest Drought-resistant Crop Farming, Ministry of Agriculture, Lanzhou, Gansu 730070, China | | FAN Tinglu | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China
Key Laboratory of Northwest Drought-resistant Crop Farming, Ministry of Agriculture, Lanzhou, Gansu 730070, China | | LI Shangzhong | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | DANG Yi | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | WANG Lei | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China |
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| Abstract: |
| The effects of different tillage methods and fertilizer treatments on the yield and water use efficiency（WUE）of winter wheat and soil fertility was studied in loess plateau of east Gansu through fixed experiment for 3 years. The results showed that traditional tillage improved the yield and the water use efficiency of winter wheat, while more than two consecutive years of no-tillage resulted in the reduction of yield, so the third year should be with tillage. With the elongation of cultivation duration, the organic carbon content in both traditional tillage and no-tillage increased, which was improved from 11.75 g/kg to 13.0 g/kg in traditional tillage and from 11.75 g/kg to 13.93 g/kg in no-tillage method. Analyzed from yield, water use efficiency and soil fertility, traditional tillage had a positive effect on the yield and water use efficiency of winter wheat and soil fertility. So traditional tillage combine
d with mixed application of organic and inorganic fertilizer is an effective way for soil fertility and disaster reduction in the loess plateau of east Gansu at present. |
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