| 根系分隔对小麦玉米套作田土壤水分状况的影响 |
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| 引用本文： | 孔学夫,冯福学,柴强.根系分隔对小麦玉米套作田土壤水分状况的影响[J].中国沙漠,2014,34(3):780-785. |
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| 作者姓名： | 孔学夫 冯福学 柴强 |
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| 作者单位： | 甘肃农业大学 农学院, 甘肃 兰州 730070 |
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| 基金项目： | 国家自然科学基金项目(31360323);甘肃省杰出青年基金项目(1111RJDA006);国家科技支撑计划项目(2012BAD14B10)资助 |
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| 摘 要： | 2009年3—10月通过田间试验研究了小麦玉米套作田塑料薄膜隔根(PW/C)、尼龙网隔根(NW/C)、不隔根(W/C)及单作玉米(C)和单作小麦(W)的土壤水分状况。结果表明:以单作小麦、单作玉米加权平均为对照,W/C、NW/C和PW/C处理分别显著提高经济产量33.60%、26.93%和24.69%,增大耗水量-0.2%、1.02%和6.69%,显著提高水分利用效率34.93%、26.67%和17.80%。W/C处理较NW/C和PW/C处理分别提高经济产量5.25%和7.14%,降低耗水量1.21%和6.64%,提高水分利用效率6.52%和14.54%。小麦玉米共生期,土壤水分在套作群体组分间能够优化分配,根系分隔显著降低了作物群体产量及对土壤水分的利用效率。
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| 关 键 词： | 套作 根系分隔 耗水量 水分利用效率 |
| 收稿时间： | 2013-03-05; |
The Effect of Different Root Partition Patterns on Soil Water Condition of Wheat-Corn Intercropping System |
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| Kong Xuefu,Feng Fuxue,Chai Qiang.The Effect of Different Root Partition Patterns on Soil Water Condition of Wheat-Corn Intercropping System[J].Journal of Desert Research,2014,34(3):780-785. |
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| Authors: | Kong Xuefu Feng Fuxue Chai Qiang |
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| Institution: | College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China |
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| Abstract: | A field experiment was conducted to investigate the effect of different root partition patterns (wheat corn intercropping that root separated by plastic film (PW/C), wheat corn intercropping that root separated by nylon (NW/C), Non-root-separation (W/C)) on soil water and water use efficiency (WUE) of wheat and maize under intercropping system. The results indicate intercropping systems significantly optimized soil water distribution in wheat and maize belt in two crops growing stage, and root partition patterns significantly reduced soil water dynamic and yield. Compared to the weighted average of sole wheat and maize, W/C, NW/C and PW/C treatments significantly improved yield by 33.60%, 26.93% and 24.69%, water consumption by -0.2%,1.02% and 6.69%, water use efficiency(WUE) by 34.93%, 26.67% and 17.80%, respectively. Compared to NW/C and PW/C treatments, W/C treatments significantly improved yield by 5~25% and 7.14%, decreased water consumption by 1.21% and 6.64%, improved WUE by 6.52% and 14.54%, respectively. |
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| Keywords: | intercropping root partition pattern water consumption water use efficiency |
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