When is a good time to sow corn?

The experimental site should be planted within the sowing date required by the experimental scheme, combined with the local climate, production habits, field soil moisture and other conditions. If the experimental site thinks that the sowing date required by the experimental scheme is inconsistent with the local actual situation, and plants are prone to overwintering difficulties and weeds, or the sowing materials need to be greatly adjusted because they are received too late, the experimental site should negotiate with the State Animal Husbandry Center to determine whether the sowing date can be changed before the sowing date required by the experimental scheme, and it is not allowed to change the sowing date without authorization.