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涂层尿素是广州化肥厂全体科技人员研制成功的一种重量轻、成本低、易分解,不污染的有机胶态溶液,同时加入了一定比例土壤中缺少的多种微量元素(如锰、硼、钼、锌、铁等)。它具有比普通尿素利用率高,流失少,残留贮存多,氮素释放平稳,防湿、防结块等特点.目前已在全国二十几个省(市)、自治区大面积推广应用,累计面积达几千万亩。在不同地区,不同作物,不同土壤,不同气候条件下,经区试,生产示范以及大面积生产,利用率比普通尿素提高6—8％,增产幅度小麦8.6—16.9％,玉米4.9—13.2％,水稻5—6％,棉花4.9—13.2％、花生4—10％,瓜类12—13％,涂层尿素现已列入国家“八五”星火计划.
Coated urea is a kind of colloidal solution with low weight, low cost, easy to decompose and non-polluting, which is successfully developed by all scientific and technological personnel in Guangzhou Fertilizer Plant. At the same time, a variety of trace elements (such as manganese and boron , Molybdenum, zinc, iron, etc.). It has a higher utilization rate than ordinary urea, less loss, more residual storage, stable release of nitrogen, moisture, anti-caking and so on. At present in more than 20 provinces (municipalities), autonomous regions large-scale promotion and application, the cumulative area Up to tens of millions of acres. In different regions, different crops, different soils and different climatic conditions, the utilization rate of district trial, production demonstration and large area production increased by 6-8%, the yield of wheat increased 8.6-16.9%, that of corn was 4.9-13.2% 5-6% of rice, 4.9-13.2% of cotton, 4-10% of peanuts and 12-13% of melons. The coated urea has now been listed in the State’s Eighth Five-Year Spark Plan.