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滴灌是将水或肥料溶液,沿着很细的塑料管子,缓慢地,经常不断地滴到作物根部营养区的灌水方法。随着塑料管工业的发展,滴灌系统开始广泛应用于许多国家的灌溉事业。澳大利亚在1965年首先进行了滴灌试验,到1970年滴灌面积达到1200公顷,1972年增加4000公顷。滴灌之所以发展很快,是由于在炎热干旱的气候条件下能节约用水量,同时花费的劳力较少。以色列的滴灌面积已超过4000公顷,英国1400公顷,美国、意大利、丹麦、新西兰、日本、突尼斯,墨西哥也应用了这种新的灌溉方法。
Drip irrigation is a method of dripping water or fertilizer solution along a very thin plastic tube, slowly and constantly, into the vegetative zone at the root of the crop. With the development of plastic pipe industry, drip irrigation system began to be widely used in irrigation in many countries. Drip irrigation was first conducted in Australia in 1965. By 1970 drip irrigation reached 1,200 hectares and in 1972 an increase of 4,000 hectares. Drip irrigation has developed rapidly due to its ability to conserve water in hot, arid climates while consuming less labor. Israel has more than 4,000 hectares of drip irrigation and 1,400 hectares in the United Kingdom. The United States, Italy, Denmark, New Zealand, Japan, Tunisia and Mexico also apply this new irrigation method.