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利用裂区设计方法,从生物学产量、小麦耗水规律及水分利用率方面对旱区小麦夏闲期的利用进行了探讨,论证了旱区小麦夏闲期利用的可能性。试验结果表明:小麦夏闲期种植玉米、子粒苋等作物既可于夏用期生产较多的干物质,对全年生物产量也有显著的增益作用。这种模式对于加强旱区小麦生产系统的生物循环,增强该系统在资源、生产及经济方面的可持续性都有重要的现实意义。试验结果还进一步说明这种模式对保证旱区麦农的短期利益,即保证小麦生产的稳定性,也无统计学上的显著影响。
Based on the methods of split design, the utilization of summer wheat during the summer fallow period was discussed in the aspects of biological yield, wheat water consumption and water use efficiency. The feasibility of summer wheat utilization in dry land was also demonstrated. The results showed that planting summer maize and maize amaranth and other crops not only produced more dry matter in summer but also significantly increased the annual biomass yield. This model is of great practical significance to enhance the biological cycle of the wheat production system in arid areas and to enhance its resource sustainability, production efficiency and economic sustainability. The test results further demonstrate that this model has no statistically significant effect on ensuring the short-term benefits of wheat farmers in dry areas, that is, ensuring the stability of wheat production.