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[目的]明确不同耕作方式对糜子的水分利用效率及产量的影响。[方法]采用深耕、传统耕作、免耕、旋耕4种耕作方式,以晋黍9号为材料,研究不同耕作方式对糜子干物质积累量、土壤含水量、水分利用效率以及产量的影响。[结果]深耕、免耕、旋耕这3种耕作措施的干物质积累速度和积累量要明显高于传统耕作,且深耕最为明显;深耕在0~100 cm处的土壤含水量高于其它耕作方式,且土壤贮水量最大,水分利用效率排序依次为深>旋>免>传;穗粒重、千粒重和产量都以深耕处理的最大,传统耕作方式的最小。表明在4种耕作方式中,深耕有利于糜子产量和水分利用效率的提高。[结论]该研究为糜子主产区提高水分利用效率提供了科学依据。
[Objective] The research aimed to clarify the effects of different tillage practices on water use efficiency and yield of barramundi. [Method] With tillage, traditional tillage, no tillage and rotary tillage, the effects of different tillage practices on dry matter accumulation, soil water content, water use efficiency and yield of millet were studied using Jinmai 9 as materials. [Result] The dry matter accumulation rate and accumulated amount of deep tillage, no-tillage and rotary tillage were obviously higher than those of conventional tillage, and the deep tillage was the most obvious. The soil water content of deep tillage at 0-100 cm was higher than that of other tillage The highest water storage capacity and the highest water use efficiency were the order of deep rotation, no rotation and no growth. The grain weight per ear, grain weight per unit area and yield were both the largest in deep plowing and the lowest in traditional farming methods. It showed that deep plowing improved the yield and water use efficiency of the four kinds of tillage. [Conclusion] The study provided the scientific basis for improving the water use efficiency of the main producing areas of.