水肥一体化技术是将灌溉与施肥相结合的一项综合技术,具有省肥、省水、省工、环保、高产、高效的突出优点。根据笔者调查,目前推广面积较大的省份有新疆、内蒙、广东、广西、山东、海南、云南、北京等省区市,而有的省份刚刚起步。从田间应用效果看,有些充分发挥了水肥一体化的优势,取得了满意效果。但有些地方的应用出现各种问题,效果甚至不如传统管理。为什么会存在这样的差距?示范 Water and fertilizer integration technology is a combination of irrigation and fertilization technology, with the provincial fertilizer, water, labor, environmental protection, high yield, high efficiency outstanding advantages. According to the author’s survey, the provinces currently with large area for promotion include Xinjiang, Inner Mongolia, Guangdong, Guangxi, Shandong, Hainan, Yunnan and Beijing, while some provinces have just begun. From the field application effect, some give full play to the advantages of water and fertilizer integration, and achieved satisfactory results. However, there are problems in some areas of application, the effect is even worse than the traditional management. Why is there such a gap? Demonstration