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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。
Field experiment was conducted to study the effects of plastic film rooting (PW / C), nylon / nylon root separation (N / C), non-rooting (W / C) And monoculture wheat (W) soil moisture status. The results showed that the W / C, NW / C and PW / C treatments significantly increased the economic yields by 33.60%, 26.93% and 24.69%, respectively, and increased the water consumption by -0.2% 1.02% and 6.69%, respectively, significantly improving the water use efficiency by 34.93%, 26.67% and 17.80%. Compared with NW / C and PW / C treatment, W / C treatment increased economic yield by 5.25% and 7.14%, decreased water consumption by 1.21% and 6.64%, and increased water use efficiency by 6.52% and 14.54% respectively. During the symbiotic period of wheat and maize, the soil moisture could be optimally distributed among the components of the intercropping group. The separation of the root system significantly reduced crop yield and soil water use efficiency.