Corn is wind-pollinated, so it is best to plant it in blocks rather than individual rows so that the pollen has a better chance of germinating.
Plant the seeds 1–2 inches (2.5–5.1 cm) below the surface of the soil, with each plant 24–36 inches (61.0–91.4 cm) apart.
To increase the odds of the seeds germinating, plant 2-3 seeds together at each placement.
If you grow multiple varieties of corn, be sure to grow them in separate plots to reduce the risk of cross-pollination. Should cross-pollination occur, it would produce tough, starchy kernels.