在水稻生产中 ,硅是继氮、磷、钾之后第四大营养元素。在黑龙江省监狱系统的水稻种植生产过程中 ,往往偏重于施用氮、磷、钾肥 ,而忽视硅肥 ,从而造成部分地块缺硅 ,在一定程度上限制了水稻产量的进一步提高。本试验目的在于通过对比应用试验 ,掌握硅肥使用方法并做出准确的产? In rice production, silicon is the fourth largest nutrient following nitrogen, phosphorus and potassium. In the process of rice cultivation in the prison system in Heilongjiang Province, the emphasis is placed on the application of N, P and K fertilizers while ignoring the fertilization of silicon fertilizers, resulting in the lack of silicon in some plots, which to a certain extent limits the further improvement of rice yield. The purpose of this test is to compare the application of tests to master the use of silicon fertilizer and make accurate production?