A general guide to common soil series in each group is given in Table 2. Coarse textured soils where the depth to the clay layer is greater than 40 inches. These soils are sands or loamy sands throughout with no obvious change in soil texture to a depth greater than 40 inches. Zinc deficiency on corn may be observed on these soils the year after liming or when the soil is limed to a pH of 6.5 or higher. The surface materials are sands or loamy sands to a depth of 20 inches and not more than 40 inches.
Underlying materials are sandy loams, sandy clay loams, and clay loams.
Zinc deficiency on corn may be a problem the year after liming or when the soil is limed to a pH above 6.5. The depth to the clay layer is less than 20 inches. Surface soil materials are mostly loamy sands, sandy loams, and fine sandy loams to a depth of less than 20 inches. Subsoil materials are sandy clay loams, clay loams, silt loams, and silty clay loams. Zinc deficiency on these soils should not be a problem if the soils are not limed to a pH higher than 6.5.