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本文提出黄土高原农田土壤水分利用的主要途径是:在半湿润地区,要建立合理的轮作施肥制度,试验结果为高肥豌豆小麦轮作,春玉米地主要通过增施肥料,可便水分效率由0.61kg/mm提高到1.26kg/mm。在半干旱的冬小麦地区,采取水平沟种植,半干旱秋田地区采取蓄水聚肥改土耕作法,海拔偏高的半干旱地区,采取带状平播起垄耕作法,丘陵地区的川平地和坝地,实行沟垄种植。在干旱地区采取的措施有沙石田、径流农业(包括隔坡梯田、带田、坑田、区田等),撂荒农业,地膜农业等。有地表水来源处可发展节水灌溉农业。
This paper proposes that the main ways of soil water utilization in farmland in the Loess Plateau are as follows: To establish a reasonable rotation fertilization system in semi-humid areas, the test results are high-fat pea wheat rotation, spring maize mainly by fertilization, the water efficiency from 0.61 kg / mm to 1.26 kg / mm. In the semi-arid winter wheat area, semi-arid semi-arid areas with horizontal ditch planting and semi-arid arid areas were adopted to rehabilitate tillage with water and fertilizer, and elevation semi-arid areas were taken. Dam, the implementation of ditch ridge planting. Measures taken in arid areas include sand fields, runoff agriculture (including terraces, fields, pit fields, and fields), deserted agriculture and plastic film agriculture. There are sources of surface water to develop water-saving irrigation agriculture.