摘要
试验表明 :用炼铁水淬渣为主要原料生产的硅肥 ,能够抑制水稻对镉吸收。在本试验条件下 ,施硅肥后糙米镉含量相对下降 92 %以上 ,稻草镉含量下降 94%。随着硅肥施用量的增加 ,抑制作用有增强的趋势 ,作者认为在镉污染不太严重的地区 ,施用硅肥可以防止重金属污染。
The experiment shows: the silicon fertilizer produced from the steel slag can restrain the Cd absorption by paddy. In this experiment, after the application of the silicon fertilizer, the Cd contents in unpolished rice and rice straw are decreased respectively by 92% and 94%. The restraint becomes stronger with more silicon fertilizer. We think that the application of the silicon fertilizer can prevent from heavy-metal pollution where the Cd pollution is not very serious.
出处
《地域研究与开发》
CSSCI
北大核心
2000年第4期69-71,共3页
Areal Research and Development
