水稻是一种大量吸收硅酸的作物。国外特别是日本对硅肥在水稻生产中的增产作用极为重视。大量的试验结果表明,施用硅肥不仅具有改进某些低产田的效果,而且能进一步提高水稻产量,同时也为解决含硅工业废渣的利用开辟了途径。日本在水稻高产栽培中施用硅肥的试验说明,氮的用量越高,植株体内硅氮比率容易降低。因此,硅 Rice is a crop that absorbs silicic acid in large quantities. Foreign countries, especially Japan, attach great importance to increasing the yield of silicon fertilizer in rice production. A large number of test results show that the application of silicon fertilizer not only has the effect of improving some low-yield fields, but also can further increase the yield of rice, and also opens up a way to solve the utilization of silicon-containing industrial waste. The experiment of using silicon fertilizer in high-yield cultivation of rice in Japan shows that the higher the amount of nitrogen, the lower the ratio of silicon to nitrogen in the plant. Therefore, silicon