节点文献
半干旱偏旱区糜子沟垄径流栽培研究初报
Research on Ridge and Furrow Planting of Proso in Semi arid and Drought inclined Areas
【摘要】 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
【Abstract】 Four kinds of ridge and furrow planting of proso in semi arid and drought inclined areas indicate that ridge and furrow planting can collect water, aid water permeation, improve root system’s moisture condition, and hence remarkably elevate proso production. The result show that mulching ridges with narrow furrow are better than mulching ridges with wide furrow and mulching ridges with wide furrow are better than non mulching ridges with wide furrow. Ridges with narrow furrow do not change proso’s yield. The method of ridge and furrow planting affects top soil’s moisture earlier and dramatically while deep soil’s moisture late and slightly. Water consumption in ridge and furrow planting mainly depends on the width of furrow. Wide furrow consumes more water than narrow ones. Water utilization ratio mainly depends on the condition of ridges. Mulching ridge absorbs water more efficiently than bare ridge does.
【Key words】 ridge and furrowplanting; Panicum miliaceum L. semi arid and drought inclined areas;
- 【文献出处】 干旱地区农业研究 ,AGRICULTURAL RESEACH IN THE ARID AREAS , 编辑部邮箱 ,1997年01期
- 【分类号】S34
- 【被引频次】84
- 【下载频次】126