Nitrogen fertilizer should be applied in split applications with 50 to 100 pounds per acre of elemental nitrogen applied before planting, and another 50 to 100 pounds applied as a sidedressing when plants are 12 to 18 inches tall. Although potassium is rarely a limiting factor on most New Mexico soils, there are indications that supplemental potassium tends to reduce lodging. Blue corn is often sold as organically grown. Manure should be applied in the fall at a rate of 20 tons per acre. Pesticide labels should be carefully followed for control of all weeds, insects and diseases.
Blue corn differs from other corns in that it often has longer flowering period.
This can affect a corn earworm control program. One, two or more applications of appropriate insecticides might be needed for effective control. Blue corn sold organically normally requires that the crop be grown without the use of either synthetic pesticides or synthetic fertilizers. Organic growers should consult their buyers for definitions of what they consider organically grown. Birds can be a major pest on blue corn.