通过盆栽试验，研究了硅酸盐菌剂对水稻成熟期生物性状及主要生育时期养分累积的影响。结果表明，硅酸盐菌剂处理的水稻根系及穗部干质量分别比对照提高30.3%、10.1%；硅酸盐菌剂可显著增加水稻主要生育时期养分含量，与对照相比，水稻植株全氮增加7.4%~31.7%，全磷增加7.4%~14.3%，全钾增加3.7%~18.3%，全硅增加5.9%~7.9%。硅酸盐菌剂处理后土壤有效硅含量可维持在较高水平，水稻收获后土壤有效硅含量增加2.8%。因此，硅酸盐菌剂介入土壤环境后，能促进水稻生长发育及主要生育时期养分积累，增加土壤有效硅含量，具有较好应用前景。

A pot experiment was conducted to study the effect of silicate bacterium on biological character and nutrients accumulation of rice. The results showed that, compared with the control, the root dry weight increased by 30.3%, the spike dry weight increased by 10.1%. Silicate bacterium application significantly increased the nutrient content in the main growth stages of rice, compared with the control, the total nitrogen content increased by 7.4%~31.7%, the total phosphorus increased by 7.4%~14.3%, the total potassium increased by 3.7%~18.3%, the total silicon increased by 5.9%~7.9%. The available silicon content in soil can be maintained at a high level with silicate bacterium application, the content of available silicon in soil increased by 2.8% after the rice harvest. Therefore, silicate bacterium can promote the growth of rice, increase the main nutrient accumulation of rice and the content of available silicon in soil. Silicate bacterium has a good application prospect.