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迅速发展的滴灌目前,我国的灌水方式很多,主要有漫灌、沟灌、畦灌、喷灌和穴灌。它们各有千秋,但是也存在一个共同的不足之处,就是很难按照作物对水分的需要,及时地供水,使土壤中分子始终处在最佳状态。在灌水的时候,土壤含水量达到饱和或过饱和,灌水以后,土壤又逐漸出现水分不足的现象。这种交替过程好象人们不按时吃饭时饱时饥一样,不利于农作物的生长。因此,科学家们研究成了滴灌设备。自1965年澳大利亚开始试验滴灌以后,这项现代化的灌水方式,已经迅速地传播开来。1970年,美国建立了第一批经营性质的滴灌系统,
Rapid development of drip irrigation At present, China’s irrigation methods are many, mainly flood irrigation, furrow irrigation, irrigation, irrigation and irrigation. They all have their advantages and disadvantages, but there is also a common weakness in that it is very difficult to supply water in time according to the demand of the crops for water, so that the molecules in the soil are always in the best condition. When irrigation, soil moisture saturation or supersaturation, after irrigation, the soil gradually water shortage phenomenon. This alternating process seems like people do not eat when they eat the same hunger, is not conducive to the growth of crops. Therefore, scientists have become drip irrigation equipment. Since 1966 when Australia experimented with drip irrigation, this modern irrigation method has spread rapidly. In 1970, the United States established the first batch of drip irrigation systems of a commercial nature,