硅肥，又称硅钙肥，一般硅肥中含有25％～30％的二氧化硅，被看作继氮磷钾之后的第四大元素肥，对各种农作物和经济作物都有显著的增加产量、抗病虫害和改善品质的作用。同时，硅肥还能改良土壤，活化土壤中的五氧化二磷，促进作物对磷的吸收，以及防止和减轻重金属对土壤的污? Silica fertilizer, also known as calcium silicate fertilizer, contains 25% ~ 30% of silica in common silicon fertilizers, which is regarded as the fourth major element fertilizer after NPK. It has remarkable effects on various crops and cash crops Increase yield, resist diseases and pests and improve quality. At the same time, silicon fertilizer can also improve the soil, activated phosphorus in the soil to promote phosphorus uptake of crops, and to prevent and reduce heavy metals on the soil pollution?