氮肥深施效益显著农五师８７团８连刘俊明，郑金梅当前，国家大力推广化肥深施技术，它不仅能提高化肥的利用率、增产增收、降低生产成本、还可减少化肥对环境的污染，提高农业生态效益。尿素是我国固体氮肥中含氮量最高应用数量最大的优质肥料，含氮量一般为４４一４６％... At present, the state vigorously promote deep fertilizer technology, which can not only improve the utilization of chemical fertilizers, increase production and income, reduce production costs, but also reduce the pollution of chemical fertilizers on the environment , Improve agricultural ecological benefits. Urea is a high-quality fertilizer with the highest nitrogen content in China’s solid nitrogen fertilizer, with a nitrogen content of 44 to 46%.