How to Manage Corn at the Tasseling Stage? Detailed Explanation of the Latest Management Methods
The corn tasseling stage is the period from when corn enters the jointing stage until it tassels and silks. The management work during the corn tasseling stage is very important. The main purpose is to enable the corn plants to grow more stocky and robust, and to improve the corn's flowering and seed-setting rate and planting benefits. So how should management be carried out during the corn tasseling stage? Today, the editor brings you the management methods for the corn tasseling stage. Let's take a look below!
1. Intertillage and Earthing Up
After corn enters the tasseling stage, intertillage work is essential. Generally, about two rounds of intertillage and earthing up should be carried out. First, the first intertillage should be done after corn reaches the jointing stage and then the small trumpet stage. This intertillage should be combined with fertilization work. The intertillage should mainly consist of deep intertillage and light earthing up, directly applying fertilizer into the soil. Then, pile the excess soil that was dug out directly at the base of the corn plants to form soil ridges. Then, during the large trumpet stage, when heavily applying the tasseling fertilizer, carry out intertillage and earthing up work again.
2. Timely Topdressing
The corn tasseling stage is the peak period of fertilizer demand during the entire growth period of corn. Therefore, for plots where the base fertilizer application was insufficient, a tasseling fertilizer should be applied promptly. Especially if straw is to be returned to the field, then it is best to advance the topdressing time, and topdressing can be carried out after corn jointing. When topdressing, pay attention to controlling the topdressing amount. Usually, about 15 kg of urea is applied per mu. It is enough to ensure that corn has a sufficient amount of pure nitrogen throughout the entire growth period. After topdressing, pay attention to covering the soil to avoid serious fertilizer loss, which would reduce fertilizer efficiency.
3. Water Control
During the corn tasseling stage, although the corn plants have a relatively large demand for water, attention should also be paid to controlling the amount of watering. If too much watering causes the soil to become too wet, then it will seriously affect the growth of the corn roots and lead to reduced yield. Therefore, if water accumulation or overly wet soil occurs, then drainage should be carried out promptly, and the field drainage should be maintained at about 75%. After corn tasseling, high-temperature and drought weather is generally encountered, and corn is also prone to pollen abortion due to high temperature and lack of water. Therefore, around the tasseling period, if drought occurs, watering should be carried out promptly.
4. Pest and Disease Control
During the tasseling stage, corn is prone to many pests and diseases, such as corn borer, brown spot disease, stalk rot, and so on. Among these, the main period for controlling corn borer should be during the large trumpet stage. If control is delayed until after tasseling, then it will become very difficult. For controlling corn borer, pesticides such as Kangkuan or tebufenozide can be used. For diseases, if it is brown spot disease, then when corn grows to about 7 leaves, triadimefon can be used together with an appropriate amount of foliar fertilizer such as potassium dihydrogen phosphate for control.
The above is a brief introduction to the management methods for the corn tasseling stage. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!