Abstract: The present disclosure is concerned with fertilizer compositions that provide controlled, delayed, and/or prolonged release of micronutrients in soil. In one embodiment, the inventive composition comprises a dry, powdered blend of a first target micronutrient source in chelated form and a second source of the same target micronutrient but provided in non-chelated form. In another embodiment, the inventive composition provides at least two sources of boron, with one source being a water-soluble form and the other source being a water-insoluble form. Regardless of the embodiment, the methods of using the fertilizer composition results in increased uptake of the particular micronutrient, nitrogen, and/or potassium compared to the prior art.