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许多发达国家曾一度把节水研究注意力几乎全部集中于喷滴灌技术.但随着能源的日益紧缺,人们又重新重视对常规灌水方法的改进与发展,并创造出许多全新方法。1.波涌灌溉这是美国推出的一种灌水方法,用加大流量把水灌到部分沟渠时暫停供水,过一段时间,再用加大流量供水,如此时断时续,使水流呈波涌状推进。用相同水量灌溉时,波涌灌的水流前进距离为连续灌的2～3倍。同时,由于波涌灌
Many developed countries once focused almost exclusively on drip irrigation technology, but with the increasing shortage of energy, many people pay more attention to the improvement and development of conventional irrigation methods and create many new methods. 1. Surge Irrigation This is the United States introduced a method of irrigation, with increased flow of water into part of the ditch to suspend water supply, over time, and then increase the flow of water supply, so intermittent, so that the water wave Pushing forward. When irrigating with the same amount of water, the water flow of the surge irrigation is 2 to 3 times of the continuous irrigation. At the same time, due to surge irrigation