众多报导认为施用硅肥可促进水稻光合作用和根系生育,增强抗倒伏和抗病虫害能力,但此研究多见于低产的石灰性土壤。在高产条件下,随作物产量提高,土壤供硅能力不足也已成为水稻夺取持续增产的限制因子。本文主要述及高产水稻施用硅肥肥效及用量,为高产水稻科学施用硅肥提供依据。1材料与方法 试验在我市张浦镇站办农场进行,土质为黄泥土。试验前土壤有效硅含量128mg/kg,水稻品种为 Numerous reports indicate that the application of silicon fertilizer can promote rice photosynthesis and root growth, enhance lodging and pest resistance, but this study more common in low-yielding calcareous soil. Under high-yielding conditions, with the increase of crop yield, insufficient soil silicon supply has also become the limiting factor for the rice to seize continued production. This paper mainly deals with the fertilization effect and the amount of silicon fertilizer applied to high-yielding rice, and provides the scientific basis for high-yield rice science application of silicon fertilizer. 1 Materials and Methods Test Zhang Puzhen stationed in the city farm, the soil is yellow soil. Before the test soil available silicon content 128mg / kg, rice varieties