Influence of long-term nitrogen fertilization on crop and soil micronutrients in a no-till maize cropping system

•Fertilization increased copper and manganese concentrations in stover but not grain.•Zinc concentrations declined in all plant fractions with nitrogen fertilization.•Iron concentrations in the grain increased with fertilization.•Available and total soil micronutrients were not impacted by fertilization rates.•Available soil micronutrients closely followed soil organic carbon.