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要重视节水和旱作农业技术的应用农业部农业司左孟孝我国是一个水资源紧缺的国家，人均水资源约２４００立方米，仅为世界人均水平的四分之一。全国年平均降水量６５０毫米左右，低于世界平均水平。全国１４亿多亩耕地中，旱地就占了５０％。由于水资源紧缺，旱区农业生产...
Importance should be attached to the application of water saving and dry farming techniques. Zuo Mengxiao, Department of Agriculture, Ministry of Agriculture China is a water scarce country with a per capita water resource of about 2,400 cubic meters, only a quarter of the world average. The national average annual rainfall is about 650 millimeters, below the world average. Of the country’s more than 1.4 billion mu of arable land, drylands account for 50%. Due to water shortage, arid area agricultural production ...