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采用4种沟垄径流栽培形式,在半干旱偏旱区对糜子试验表明,沟垄径流栽培可聚积水分,促使水分下渗,改善作物根际水分状况,显著促进作物生长。此效应大小依次为,膜垄窄带>膜垄宽带>土垄窄带>土垄宽带。但增产效应与聚水效应不完全一致,为膜垄宽带>膜垄窄带>土垄宽带,土垄窄带不增产。沟垄处理对浅层土壤水分影响大且早,对深层影响小而迟。沟垄径流栽培的耗水量主要决定于带宽,宽带大于窄带;水分利用效率主要决定于垄面状况,覆膜垄大于土垄
Using four kinds of furrow-runoff cultivation forms, experiments on the millet in the semi-arid and semi-arid areas showed that the furrow-ridge runoff culture can accumulate water, promote water infiltration, improve crop rhizosphere water condition and significantly promote crop growth. The effect of the size of the order, the narrow ridge of the film ridge> ridge width> soil ridge narrow band> earth ridge width. However, the yield-increasing effect is not exactly the same as that of water-gathering effect, which is for the ridge width> ridge width> ridge width, soil ridge width does not increase. Ridge and furrow treatments have a large and early impact on the shallow soil moisture, with small and late effects on the soil depth. The water consumption of ridge-ridge runoff cultivation is mainly determined by the bandwidth and the broadband is greater than the narrowband. The water use efficiency is mainly determined by the condition of the ridge, and the covered ridge is larger than the ridge