前阶段的研究,发现江苏下蜀黄土丘陵地区水稻土耕层有效硅含量不足,普遍低于10毫克SiO_2/100克土。经镇江市、丹徒县农业局在丹徒乡试验点连续数年施用钢铁厂高炉熔渣硅肥的大田试验,均获得水稻增产10％左右的显著效益。熔渣硅肥属缓效性的硅钙肥料,用量颇大,每亩需100公斤、而且还需经粉碎工序,目前农户运输尚困难,且费用较大。因此,在有效硅含量不足的水稻土地区推广施用硅肥这项增产新技术,迫切需要解决一种速效性、有 The previous study found that the effective silicon content of paddy soil in the Xiashu loess hilly region of Jiangsu Province was insufficient, generally below 10 mg SiO 2/100 g soil. By Zhenjiang City, Dantu County Bureau of Agriculture in Dantu Township test points for several years in the steel plant blast furnace slag silicon fertilizer field tests were obtained about 10% of rice yield significant benefits. Slag silicon fertilizer is a slow-acting calcium silicate fertilizer, a large amount of 100 kilograms per acre needed, but also by the crushing process, the current transport of farmers is still difficult and costly. Therefore, in the effective area of ​​silicon in paddy soil to promote the application of silicon fertilizer production of this new technology, there is an urgent need to solve a quick, there is