2. Planting time in the north and south: There are differences in the suitable planting time of corn in the north and south. Generally, it is more suitable to plant corn in spring and autumn in the south, and it is best to plant corn in spring in the north.
3. Planting time in greenhouse: Corn can be planted in greenhouse, and the planting time in greenhouse is different from that in open air. Generally, March-April, June-July,165438+1October are suitable for planting corn in greenhouse, because the greenhouse itself has a better environment, so these periods are suitable for planting corn.