水稻是喜硅作物。长期以来，在水稻生产过程中，人们偏重于施用氮、磷、钾肥而忽视硅肥。随着水稻产量的逐年提高，土壤中的有效硅含量却逐年下降，土壤缺硅越来越严重，从而导致水稻抗倒伏及抗病虫害能力下降，限制了水稻产量的进一步提高。因此，在稻田进行施用硅肥试验，探 Rice is a hi silicon crop. For a long time, in the process of rice production, people tend to focus on the application of nitrogen, phosphorus and potassium fertilizer while ignoring the silicon fertilizer. With the year-by-year increase of rice production, the available silicon content in soil is declining year by year, and the silicon deficiency in soil is more and more serious, resulting in the decrease of rice lodging resistance and pest-resistance ability, which limits the further increase of rice yield. Therefore, the application of silicon fertilizer in rice fields, exploration