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盆栽试验结果表明:施用钢渣降低了土壤水溶态硅、DTPA-Fe、DTPA-Mn的含量,其效果随钢渣用量的增加而更为显著。但在钢渣用量一定时,却以中等粒度(60目)处理降低程度最大。施用钢渣还可以提高水稻植株体内硅的含量,降低水稻植株体内铁和锰的含量,其效果随钢渣用量增加或粒度变细而更为明显。
The results of pot experiment showed that the application of steel slag reduced the content of soil water-soluble silicon, DTPA-Fe and DTPA-Mn, and the effect was more obvious with the increase of steel slag dosage. However, a certain amount of steel slag, but with medium-sized (60 mesh) to reduce the maximum extent. The application of steel slag can also increase the content of silicon in rice plants and reduce the contents of iron and manganese in rice plants. The effect is more obvious with the increase of steel slag dosage or grain size.