What are the latest causes of excessive growth in winter wheat?

The temperature is getting lower and lower now, and we are gradually entering winter. The planting work of winter wheat is also becoming busier and busier. Now in many regions, winter wheat has basically been sown. After the winter wheat seedlings emerge, we need to focus on doing a good job of management. Otherwise, winter wheat is very prone to excessive growth. So what are the causes of excessive growth in winter wheat? Below, the editor will give everyone a brief introduction. Let's take a look together!

1. Improper variety

When planting winter wheat in winter, the choice of variety is very important. If the planted variety is a spring-type or weak-spring-type variety, then it should not be sown too early. If sown too early, the wheat is very prone to excessive growth before winter. Moreover, wheat fields of these varieties are also the most susceptible to freezing damage in winter. For this situation, we should pay attention to early hoeing and intertillage and pressing, and can also cover soil around the wheat plants to protect the roots, ensuring that the wheat seedlings can safely overwinter.

2. Excessive sowing

Many friends, when sowing, do not control the sowing rate well according to factors such as soil fertility, variety, and yield. As a result, they increase the sowing rate without restriction, causing the seedlings, after emergence, to have little growth space and crowd each other, affecting the growth and development of individual wheat seedlings. There is little or even no tillering. In this case, after the wheat seedlings emerge, we should thin them in time. Change the population structure in the wheat field, and then, according to the development of individual plants, combined with watering work, apply an appropriate amount of quick-acting nitrogen and phosphorus fertilizer, etc., to supplement the excessive consumption of soil nutrients caused by excessive sowing.

3. Excessive fertilizer and water

In soil with high fertilizer and high water, because wheat growth has sufficient fertilizer and water, if the temperature is also well controlled, then its tillering is very numerous. The growth rate of wheat seedlings will also be very fast, and the leaf area will also be relatively large. The seedlings in the field shade each other, causing the wheat field to be too closed, and the lower leaves turn yellow due to insufficient light. Moreover, the aboveground part will grow excessively because of too much fertilizer and water. Therefore, when managing, we should pay attention to doing a good job of intertillage and root cutting. When the main stem of the wheat seedling grows to about 7 leaves, we should deeply hoe about 6 cm between the wheat rows to cut off part of the root system, avoiding excessive nutrient absorption, reducing the amount of tillering, and cultivating strong seedlings.

4. Sowing too early

If winter wheat is sown too early, the leaves of the seedlings will become very narrow and long, and the amount of tillering will be insufficient. Moreover, the main stem and large tillers will enter the double-ridge stage before winter, with the characteristic of first growing excessively and then weakening. If it encounters minus five degrees and lasts for five hours, then it is very prone to freezing damage. So we should pay attention to doing a good job of pressing, in order to inhibit the growth of the main stem and large tillers and avoid excessive growth. When pressing, attention should be paid to doing it mainly on sunny days, and after pressing, appropriately loosen the soil and water to ensure seedling growth.

The above is a brief introduction to the causes of excessive growth in winter wheat. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!