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尿素被广泛应用于我国农业生产当中,为促进粮食单产水平的提高,起到了不可替代的作用。然而生产中施用普通尿素存在着诸多弊端,如尿素在土壤中释放速度快、作物利用率低,容易结块、粉化,造成土壤板结、水体污染等,这些问题在一定程度上影响了种植效益的进一步提高,阻碍了我国农业的可持续发展。随着科技的进步,近年来生产上出现了一种尿素新产品“控缓释”尿素,它是通过物理或化学的方法,控制尿素溶解速度,
Urea is widely used in agricultural production in China, in order to promote the level of grain yield increase, played an irreplaceable role. However, the application of common urea in production has many drawbacks. For example, the release rate of urea in soil is high, the utilization rate of crops is low, caking and powdering are easy, resulting in soil compaction and water pollution. These problems affect the planting efficiency to a certain extent Further hinder the sustainable development of agriculture in our country. With the progress of science and technology, in recent years, there has been a new production of urea “controlled release ” urea, which is through physical or chemical methods to control the rate of urea dissolution,