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涂层尿素是我国研究开发的新型氮肥品种。自1990年引人我省，经大范围试验、示范均获得明显的增产增收效果，由于其使用方法简便，很受群众欢迎。据武强县土肥站近年来的试验结果证明：在同等条件下，施用涂层尿素与施用普通尿素相比，农作物（小麦、玉米、棉花等）根系发达，?
Coated urea is a new type of nitrogen fertilizer researched and developed in China. Introduced to our province since 1990, after a wide range of experiments, demonstrations have been significantly increased production and income, due to its easy to use, very popular with the masses. According to Wuqiang County Soil Fertilizer Station in recent years, the test results show that: under the same conditions, the application of coated urea compared with the application of ordinary urea, crops (wheat, corn, cotton, etc.) developed root system?