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本文总结了湖南省主要农田土壤硅的形态、含量的结果,根据田间和盆栽试验及室内分析数据,将全省土壤划分为供硅能力低、中偏低、较高及高共四类,预测约占全省总面积51.5％的土壤施硅可能有效。对全省主要炉渣硅肥资源进行了调查研究,通过试验研究,明确黄磷炉渣、锰矿炉渣炼铁高炉渣等可作为硅肥施用並可使水稻获得增产,且不致使水稻受其重金属的污染。
This paper summarizes the results of the morphological and the content of silicon in main farmland soils in Hunan Province. According to field and pot experiment and laboratory analysis data, the soil in the whole province is divided into four categories: low, medium, high and high, Soil silicon application, accounting for 51.5% of the total area of the province, may be effective. The main slag silicon fertilizer resources in the province were investigated and studied through experiments and studies, clear yellow phosphorus slag, manganese slag iron smelting blast furnace slag can be used as silicon fertilizer and rice can be increased production, and will not cause rice pollution by heavy metals .