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高效涂层尿素是广州氮肥厂1985年研制成功的新产品。1993年3月在北京召开了涂层尿素技术推广会。专家们认为扩大涂层尿素的生产和应用,是提高我国氮肥利用率的有效途径。涂层尿素是在普通尿素的颗粒表面上,喷涂一层特殊的溶液,经过干固氧化而成,其外型由白色变为橙黄色圆形颗粒。由于有一层胶体物质薄膜,既减缓氮素的分解释放速度,延长肥效持续时间,又比撒施普通尿
High-efficiency coated urea plant in Guangzhou in 1985 developed a successful new products. March 1993 held in Beijing coated urea technology promotion. Experts believe that expanding the production and application of coated urea is an effective way to improve the utilization of nitrogen fertilizer in our country. Coated urea is on the surface of ordinary urea particles, spraying a layer of special solution, after dry solid oxidation, its appearance from white to orange yellow round particles. Due to a layer of colloidal film, not only slow down the decomposition of nitrogen release rate, extend the duration of fertilizer, but also than ordinary urine smear