英语翻译什么是树脂包衣尿素?为什么能够缓释?树脂包衣肥料在包衣加工设备完全封闭下,将尿素和复合肥进行包衣,使表面形成一层

What is the resin coated urea? Why can release? Resin coated fertilizer in the coating processing equipment will be completely closed, urea and fertilizer is coated, the surface to form a layer of resin film, so as to achieve nitrogen ( N.P.K ) slow release effect. Through the process of coating material for regulating formula, coating, coating time temperature control can be formed by coating thickness of different, capsule rupture time and speed, can control the release coated urea days ( 60 days, 90 days, 120 days, 180 days, and so on ) for nitrogen fertilizer utilization rate to control and improve the function of. Resin coated compound fertilizer can be used directly on the lawn and flowers. Slow / controlled fertilization as long as there are several types: 1 ( wrap ), coated slow / controlled release fertilizers. Synthesis of 2, slightly soluble state of slow release fertilizer. 3, inhibition of long-term biochemical fertilizer. Fertilizer coating processing machinery manufacturing is the key to the project, the present coating processing equipment spouted bed, fluidized bed and drum equipment, processing machinery used in the type, processing the temperature, gas velocity, nozzle type and status, can affect the quality and production costs of fertilizer. Jet type coating machine coating effect is very good, drum coating machine can not be used to control fertilizer coating. The use of new plastic resin particles, plastic or plastic film, available plastic film packaging material can be. According to our experiments, the use of recycled plastics, impurities will affect the dissolution results. The resin coating technology in the production of resin coated controlled release fertilizer with slow release long-acting, three big characteristics doomed it fundamentally avoid the traditional fertilizer fertilizer waste, nutrient loss, soil and groundwater pollution etc, provide crop smoothly and everfount nutrient supply, nutrient release period and the growth period of crops near perfect matching, so simply relying on increasing general chemical fertilizer quantity and can't get higher yield. Controlled release fertilizer nitrogen use efficiency can reach above 60%, 1KG is equal to 1.5KG ordinary fertilizer controlled release fertilizer. Resin coated urea can not only improve the utilization rate of the fertilizer, increasing crop yield, and it has the following advantages: a fertilizer can meet crop nutrient demand of whole growth period, saving labor and time; according to the soil and crop varieties of preparation of a variety of special fertilizer, convenient application; coated urea again no salt, not to hurt the seedling, not to hurt root; reduction of groundwater, surface water and air pollution, improve product quality, meet the pollution-free, health food requirements.