在北方高肥力土壤上，硅锌锰配合施用作基肥有明显增产效果。小麦平均每亩增产４９．７ｋｇ，增产１１．８６％；玉米平均每亩增产７７．２ｋｇ，增产１５．３８％．锌锰配合施用对小麦、玉米也有明显增产效果或一定增产作用，但不如硅锌锰配合施用效果好。硅锌锰配合施用量以每亩硫酸锌２ｋｇ，硫酸锰２ｋｇ，硅酸钠３ｋｇ比较经济合理 High fertility in the north of the soil, Si-Zn-Mn combined with the application of basal fertilizer has a significant increase in yield. The average yield of wheat increased 49.7kg / mu and 11.86%, while that of corn increased 77.2kg and 15.38% respectively. Zinc and manganese with the application of wheat, corn also significantly increase the yield effect or a certain role in increasing yield, but not as good with the application of Si, Zn and Mn. Silicium, zinc and manganese with the application rate of 2 kg per mu zinc sulfate, manganese sulfate 2kg, sodium silicate 3kg more economical and reasonable