本文研究了苏南经济发达农区水稻增施硅肥的效果 ,探讨了高效、低成本的硅肥施用方法 ,结果表明 :在保证水稻氮、磷、钾养分需求条件下 ,增施硅肥将增加水稻产量约 1 0 % ;采用多效硅肥基施、用量为 1 50kg/公顷条件下 ,水稻收益最佳 ,能达到高产、高效的目的 In this paper, the effect of silicon fertilization on paddy rice in economically developed areas of southern Jiangsu was studied, and the application of high-efficiency and low-cost silicon fertilizers was discussed. The results showed that under the condition of ensuring the requirement of nitrogen, phosphorus and potassium, Increase rice yield about 10%; the use of multi-effect silicon base fertilizer, the amount of 1 50kg / ha conditions, rice yield the best, to achieve high yield and high efficiency purposes