膜下滴灌水肥一体化研究进展

水资源短缺和肥料利用效率偏低是制约我国农业可持续发展的重要因素。膜下滴灌水肥一体化技术是将节水灌溉、按需施肥与覆膜农艺措施集成的高效灌水施肥技术，具有节水节肥、减蒸抑盐、提质增效和减少化肥投入等优点。综述了膜下滴灌水肥一体化技术对水肥利用效率、土壤水盐分布运移，氮磷钾养分在土壤?作物系统的吸收、转化、迁移规律和对土壤理化性质的影响，以及水肥耦合模型研究和滴灌水肥一体化发展历程，分析了膜下滴灌技术目前存在的问题并提出了对策建议。 

Research Advances on Integration of Water and Fertilizer under Mulched Drip Irrigation

Water shortage and low fertilizer utilization efficiency are important factors limiting the sustainable development of agriculture in China. The integration of water and fertilizer under mulched drip irrigation is an efficient irrigation and fertilizer application technology integrating water-saving irrigation, demand-based fertilizer application and film agronomic measures, which has the advantages of water and fertilizer saving, steam and salt reduction, quality and efficiency improvement and chemical fertilizer input reduction. This paper reviews the effects of water and fertilizer utilization efficiency, soil water and salt distribution and transport, absorption, transformation and migration of nitrogen, phosphorus and potassium nutrients in soil-crop system and soil physicochemical properties, as well as the research of water and fertilizer coupling model and the development history of water and fertilizer integration of drip irrigation, analyzes the current problems of drip irrigation technology under film and proposes countermeasures.