去年,浙江省农资部门大力推广覆膜尿素,取得了显著成效。当年推广使用覆膜尿素2.1万吨,应用面积达10万公顷,深得当地政府、农民及厂家的好评。 覆膜尿素由镇海炼油化工股份有限公司研制生产。它是采用喷涂工艺将一种含有铁、锌、镁、钾等多种营养元素及可降解的有机成膜复配液喷涂于普通尿素颗粒表面而成。外观为黄色或黄棕色颗粒,总 Last year, Zhejiang Province, agricultural resources sector to promote coated urea, and achieved remarkable results. In the same year, 21,000 tons of coated urea was applied and the area of ​​application was 100,000 hectares, winning high praise from the local government, farmers and manufacturers. Covered urea by the Zhenhai Refining and Chemical Co., Ltd. development and production. It is the use of spraying technology will contain a variety of iron, zinc, magnesium, potassium and other nutrients and biodegradable organic film forming composite sprayed on the surface of ordinary urea particles made. The appearance of yellow or yellow-brown particles, total