What is the best month to plant spring corn in Henan? When is the best time to plant?

When is the spring corn planted in Henan?

Henan spring corn is suitable for planting in late April to early May. At this time, the ground temperature 5-10cm deep in the soil surface is stable at around 10℃-12℃. Planting corn earlier can extend the growth period, make the corn more mature, and increase the total yield of corn. However, if planted too early, it will easily lead to an increase in the incidence of diseases and pests, so it is necessary to reasonably grasp the sowing time.

Henan Spring Corn Planting Method

1. Choose good varieties: When planting spring corn in Henan, the first thing to do is to use high-quality seeds. First, ensure that the growth period is more than 110 days, and the root growth ability is strong. Remove small-grain cases and empty-grain seeds, and then expose the seeds to the sun for 3 days to improve the seeds' water absorption capacity.

2. Sowing method : Choose mechanical sowing or double hoe sowing, control the number of sowing, and keep the sowing amount at about 4 jin per mu. If economic conditions do not allow, then the sowing method of artificial furrowing can be used, and the sowing amount per mu is generally about 5 jin.

Points to note when planting spring corn

1. Do not sow too early: Early sowing of corn can extend the growing period and increase the yield of corn. However, if spring corn is sown too early, it will be attacked by pests and diseases, such as stunt disease and underground pests.

2. The sowing depth should be appropriate: Whether you choose machine sowing or manual sowing, the sowing depth of corn is required to be 3-6cm. If the sowing is too deep, the corn will emerge slowly and the seedlings will be weak. If the amount of water is too much, the corn emergence rate will also be reduced.