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对缓释肥料的概念、分类、制作方法、作用机理、释放机理、应用和评价等方面进行综述。分析我国控释和缓释肥料研制的现状和进展,重点介绍上海化工研究院开发的涂布包裹技术,及该技术用于硫基复肥增氮或尿基复肥包硫的实施情况,还介绍了开发的转鼓涂布包裹机、尿素快速熔融器等专用设备情况,指出涂布包裹技术进一步工业实施应注意的问题和方向。
The concept, classification, production method, mechanism of action, mechanism of release, application and evaluation of slow release fertilizer were summarized. The status and progress of research on controlled release and slow release fertilizers in China are analyzed. The technology of coating and wrapping technology developed by Shanghai Chemical Industry Research Institute is introduced emphatically, and the technology is applied to the sulfur-based compound fertilizer nitrogen or urea-based compound fertilizer sulfur Introduced the development of the drum coating and wrapping machine, urea fast melting device and other special equipment, pointed out that the application of coating technology to further industrial implementation should pay attention to the problem and direction.