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无水灌溉俄罗斯通过改装的农用喷雾器,在甜菜叶上喷洒一层熟石灰粉。大片的白色甜菜对阳光表现出强反射作用,使土壤和茎叶受热量大大减少,水分保持量明显高于未喷洒熟石灰粉的绿色甜菜地。收获时调查,甜菜叶面积明显增大,产量提高10％。节水灌溉澳大利亚研制成功一种新的农田灌溉系统,他们将滴水管埋入12厘米深的地下,把化肥溶于水中,通过管道直接浇到作物的根部。其优点可以根据农作物对水的需求供水,并能使化肥得到充分利用,既不污染水源,又能节水50％,节肥25％。空气灌溉德国研制出一种漏斗状并带有若干喷嘴管的圆管装置用来收集阳光。他
Waterless irrigation Russia uses a modified agricultural sprayer to spray a layer of slaked lime on the beet leaves. Large white beets show a strong reflection of the sun, so that the soil and stems greatly reduce the heat, water retention was significantly higher than the green sugar beet without spraying lime. Survey at harvest, beet leaf area increased significantly, the yield increased by 10%. Water Saving Irrigation Australia has developed a new farmland irrigation system that buries drippers underground to a depth of 12 cm and dissolves the fertilizer in water and pipelines directly to the roots of crops. Its advantages can be based on crop water supply needs, and make full use of chemical fertilizers, neither pollute the water, but also save 50%, 25% fertilizer. Air irrigation Germany developed a funnel-shaped tube with several nozzle tubes to collect sunlight. he