This article briefly describes the development history and working principle of water retaining agent,and introduces the synthesis method and classification of water retaining agent;At the same time,it introduces the application of water retaining agent in water retaining fer-tilizer,including the introduction,development history,development utilization and shortcomings of slow/controlled release fertilizer,and prep-aration methods of water retaining slow release fertilizer.The future research and development direction of water-retaining slow-release fertil-izer were proposed in order to provide support for related research.
关键词
保水剂/保水保肥/缓释肥
Key words
Water Retaining Agent/Keep Water and Fertilizer/Slow Release Fertilizer
维普
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