Management method of ear stage of Maize

The ear stage of corn is the time when the corn enters the jointing stage until it is tasted and silked. The management of maize ear stage is very important, the main purpose is to make maize plant growth more sturdy and sturdy, and to improve the flowering and seed setting rate and planting efficiency of maize. So how to manage it during the ear stage of corn? Today, the editor has brought you the management method of corn heading period. Let's take a look at it.

1. Cultivate the soil by ploughing.

After the corn enters the ear stage, the intertillage work is essential. Generally speaking, it is necessary to cultivate the soil twice, first of all, after the corn reaches the jointing stage, and then to the small trumpet mouth, the first intertillage work should be carried out. This time, mid-tillage should be carried out in combination with fertilization, while deep-and medium-ploughing is the main way to cultivate the soil, and fertilizer can be applied directly into the soil. Then the excess soil dug up is piled directly to the root of the corn plant to form a ridge. Then the work of ploughing and soil cultivation was carried out again when panicle fertilizer was re-applied in the big trumpet mouth period.

2. topdressing at the right time

The ear stage of corn is the peak period during which corn needs fertilizer during the whole growing period. Therefore, it is necessary to apply panicle fertilizer in time for the plots where the basal fertilizer is insufficient, especially if the straw is returned to the field. Then it is best to topdressing early, after the jointing of corn. In topdressing, we should pay attention to control the amount of topdressing, usually about 15kg per mu of urea. As long as the corn has sufficient pure nitrogen during the whole growth period. After topdressing, we should pay attention to do a good job of covering soil to avoid serious fertilizer loss and reduce fertilizer efficiency.

3. Moisture control

In the ear stage of corn, although the demand of corn plant for water is relatively large. But also pay attention to control the amount of water, if too much watering causes the soil to be too wet. Then it will seriously affect the growth of maize roots and lead to a decline in yield. So if you encounter stagnant water, the soil is too wet, then timely drainage, the field drainage is maintained at about 75%. After the heading of corn, it will generally encounter high temperature and drought weather, and corn is also easy to cause pollen abortion because of high temperature and lack of water. Therefore, before and after the heading period, if there is a drought, it should be watered in time.

4. Pest control

Corn is prone to a lot of diseases and insect pests at the ear stage. For example, corn borer, brown spot, stem rot and so on. Among them, the main period of control of corn borer should be in the big trumpet period, if you wait until after the male to control, then it will become very difficult. Kangkuan or tebufenozide can be used to control corn borer. As for the disease, if it is brown spot, triadimefon combined with appropriate amount of potassium dihydrogen phosphate and other foliar fertilizer can be used to control the disease when the corn grows to about 7 leaves.

The above is a brief introduction to the management methods of maize ear stage. That's all for today's introduction. This article is for reference only. I hope it can help you all.