This North Dakota State University Extension bulletin (SF722, revised Dec. 2022) covers corn soil fertility recommendations; among micronutrients, only zinc (Zn) is documented as a management concern for North Dakota corn, and no other micronutrient deficiencies (B, Mn, Fe, Cu) have been documented in the state for corn. Corn is one of four North Dakota crops shown to respond to zinc application when soil levels are low. The critical soil-test threshold using the DTPA extraction method is 1 ppm Zn. To avoid deficiency, the bulletin recommends either a broadcast application of at least 30 lb/acre of 36% zinc sulfate granules, or adding a compatible zinc chelate/ammoniated zinc product to starter fertilizer at planting. Broadcast zinc sulfate raises soil-test Zn for more than 10 years, whereas the starter chelate approach must be repeated annually whenever the field is planted to corn. Zinc can also be supplied along with N, P, K, and S through a 2x2 starter band at planting with no reduction in stand. Deficiency symptoms are described as yellow-striped/broad-striped newer leaves and stunted growth; correction via zinc chelate is possible after symptoms appear, but some yield loss will have already occurred by the time deficiency is visually detected, so preventive soil-test-based application is preferred over reactive treatment. The bulletin does not provide separate micronutrient guidance for soybean; its scope is limited to corn fertility. No soybean-specific rates, thresholds, or micronutrient deficiency issues are discussed in this publication.