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| Effects of no-tillage treatments on crop yield of Triticum aestivum/Zea mays and soil moisture and soil erosion by wind |
| Bao Xingguo, Shu Qiuping, Li Quanfu, Liu Shengzhan, Zhang Jiudong, Hu Zhiqiao, Sun Jianhao, Zhang Xulin |
| Institute of Soil and Fertilizer and Save water Agricultural, Gansu Academy of Agricultural Sciences，730070, Lanzhou，China |
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Abstract Field experiments of 3-year were conducted in Triticum aestivum/Zea mays intercropping by four no-tillage treatments，including no-tillage with high stubble reaping, no-tillage with straw cover, no-tillage with straw cover+ rake the soil before sowing, conventional tillage. The effects of these no-tillage treatments on the yields of Triticum aestivum interplanting Zea mays, soil moisture and soil erosion by wind were studied. Results showed: 1）compared with the conventional tillage, no-tillage treatments could increase mixed yields of Triticum aestivum and Zea mays by 2.6%-6.6%, increase the yield of Zea mays by 8.6%-13.2%, and decrease the yield of Triticum aestivum by 5.2%-8.8%. 2) Under no-tillage treatments, the capacity of soil water storage in the cultivated horizon increased by 13.4%-15.9%, and the soil erosion by wind decreased by 55.6%-100.0%. It can be concluded that no-tillage treatments of Triticum aestivum/Zea mays intercropping performed better effects, and could apply to other regions, such as in Hexi prefectures in Gansu Province, the regions on the verge of Yellow River and the same type of regions in domestic.
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Received: 10 September 2011
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