| Micronutrient | Soil | Crop |
| Boron (B) | Sandy soil or highly weathered soils | Alfalfa and clover |
| low in organic matter | ||
| Copper (Cu) | Acid pests or mucks with pH 5.3 | Wheat, oats, corn |
| and black sands | ||
| Manganese (Mn) | Peats and mucks with pH < 5.8, black | Soybeans, wheat, oats, |
| sands and lakebed/depressional soils | sugar beets, corn | |
| with pH > 6.2 | ||
| Zinc (Zn) | Peats, mucks and mineral soils with | Corn and soybeans |
| pH > 6.5 | ||
| Molybdenum (Mo) | Acid prairie soils | Soybeans |