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德国、美国等国家把硅酸钙做为改良土壤酸性的物质加以利用,而日本、南朝鲜、东南亚等水稻生产国则在水稻上施用硅酸肥料。日本每年施用硅肥100万吨左右,南朝鲜每年施用40万吨。马来西亚有40%的水稻面积,泰国有75%的水稻面积施用硅肥时稻谷增产5—10%以上。Park 在南朝鲜做了200个偏硅酸钙对水稻的肥效试验,分布在南朝鲜的各类水稻土壤上,增产幅度为3—13%,平均增产9%。
Countries such as Germany and the United States use calcium silicate as a material that improves soil acidity, while rice producing countries such as Japan, South Korea and Southeast Asia apply silicate fertilizers on rice. Japan uses about 1 million tons of silicon fertilizer annually and South Korea uses 400,000 tons annually. Malaysia has 40% of rice area, Thailand has 75% of rice area when using silicon fertilizer, rice yield increased 5-10%. Park in South Korea made 200 calcium metasilicate fertilizer test on rice, distributed in various types of paddy soil in South Korea, yield increase of 3-13%, an average increase of 9%.