Micronutrients Micronutrients are needed in small quantities, but are not small in terms of their importance to plant growth. They can improve crop quality, as well as increase crop yields. Current guaranteed values can be found in Table 1. Availability of many micronutrients is dependent on the soil pH. If your soils need liming adjustment, ask our representative about Traditional Blend N-Viro Soil. This value is specific to the Toledo, OH facility.
Copper is important in seed formation and in nitrogen metabolism.
A shortage of copper can significantly reduce the yield of the crop. Retarded plant growth and reduced yields are commonly caused by a deficiency in manganese. Manganese is also important in nitrate assimilation. Sulfur is classified as a secondary nutrient, but is primary in its importance to growing crops. Sulfur is essential in the formation of protein and chlorophyll.