What is the best season to plant corn?

When planting corn, you should choose high-quality soil. Generally speaking, corn is suitable for growing in an alkaline environment, and the soil must be fertile, loose, and well-drained. For soil with insufficient fertility, you should also apply decomposed farmyard manure to increase soil fertility, so that high-yield corn can be produced.

When is the best time to plant corn?

Corn is best planted in spring and autumn , that is, March-April and June-July . Most planting methods are sowing, and it should not be planted after October at the latest, because the temperature at this time is no longer suitable for corn growth.

There is a difference between the time for planting corn in a greenhouse and the time for planting corn outdoors. Generally, greenhouses are more suitable for planting corn in March-April, June-July, and November . Because the environment of the greenhouse itself is better, planting corn during these periods can make the corn grow better.

When is corn harvested?

Due to different weather conditions in different places, the corn harvest time is also different. Generally, it is between August and October , but it is not the same across the country.

Corn is divided into spring corn and autumn corn. Spring corn is planted in late April or early May and can be harvested at the end of August; autumn corn is planted no later than mid-July and harvested at the end of October.

Corn Planting Methods

Planting with equal spacing

For high-yield corn planting with equal row spacing, the row spacing is generally between 50-60cm, the plant spacing for spring-sown corn is 33-40cm, and the plant spacing for summer-sown corn is 25-33cm. The density of spring-sown corn can reach 3300-4000 plants/mu, while the density of summer-sown corn can reach 4000-4500 plants/mu.

The density of each variety should be designed according to the appropriate density of the variety. For dense-resistant varieties with upward-thrusting leaves and resistance to lodging, the row spacing should be narrower; for large-ear varieties with flat leaves, the row spacing can be wider.

Wide and narrow row planting

Corn is planted in wide and narrow rows, with wide rows of 80cm and narrow rows of 40cm. The spacing between plants is designed according to the appropriate density of the variety. If the wide row is too wide, land will be wasted and space will not be used reasonably.

If the rows are too narrow, ventilation and light transmission will be affected, and individual plants will compete with each other, affecting their normal growth and development. If the rows are too small, the light in the middle and lower parts of the plants will be poor, and the stems will be thin and soft, easily falling over, affecting the increase in yield.

Mulching planting

1. Sow seeds first and then cover with film

The advantage of breaking the film and releasing the seedlings after emergence is that it is not only suitable for machine sowing, but also can ensure the quality of sowing and film covering, and the seedlings emerge neatly, but it is not conducive to moisture conservation before sowing, breaking the seedlings and sealing them is labor-intensive, and the seedlings are not released in time and scalded. It can be used in plots with flat terrain, good moisture content, easy irrigation, and suitable for mechanical film covering.

2. Cover with film before sowing

Punch holes on the film when sowing, and seal the holes with wet soil after sowing. This method is conducive to sowing and moisture conservation. Generally, there is no need to release seedlings. If you find that the seedlings do not come out from under the film, you must help the seedlings out of the film in time. It is more labor-intensive when sowing and is suitable for plots with sufficient soil moisture but difficult irrigation.

3. Sowing and film covering are carried out simultaneously

Using machinery, covering the film and sowing can be carried out simultaneously, which can save time and is suitable for soil with good moisture conditions and field water holding capacity between 60-70%.