Corn lodging is common for growers and severely affects high yields, often due to improper management or corn lodging after storms. Especially in the heading period is the key moment of corn pollination, lodging will definitely affect the pollination of corn and lead to corn yield reduction. What are the types of corn lodging and how to deal with it?
First, the corn lodging is mainly divided into three types
1. The roots are lodging, that is, the corn plants are not bent or folded, and the roots are tilted and stumbled along with the surface. Continuous rainfall or irrigation is more soil moisture, and when a gust of wind blows, the roots fall. The roots fall more and more with the wind.
2. The stem is folded, that is, the fixed position of the corn root is not bent, and the stem is broken from a certain section of the stem or a young section or section of the upper part of the stem. When the density of corn plants is high, the ventilation is poor, and the light is poor, the stems are poorly developed. When the wind is strong, the stems may be broken.
3, the stem is lodging, that is, the fixed position of the root system is not broken, and the upper part of the corn is bent and smashed. Stem lodging usually occurs in the middle and late stages of corn growth. The stems of the corn are tender and covered with rain. The wind may blow when the wind blows. The lodging of the corn is complicated. Sometimes, several types of lodging occur in the same field, and even Some fields are inconsistent with the direction of lodging.
Second, the impact of corn lodging
Corn can recover on its own in the case of less serious lodging in the early stage of growth, with little effect on yield. Corn is lodging in the middle of growth, and it can recover itself except for slight roots or bends. The lodging at this time will affect the normal growth, pollination and increase of pests and diseases of the corn, which will reduce production. The lodging of corn in the late growth period can not recover spontaneously, but has little effect on the yield but will increase the difficulty of harvesting.
3. Farmers should not "help" after the corn has fallen.
1, the early lodging does not need to help the corn self-recovery ability is strong, so the early period of lodging is not serious can not help. If the lodging is very serious, even if it will affect the later growth after lifting, and it takes time and labor to require a lot of labor, it is better to replant other crops.
2, the corn root can not help the corn roots mainly damage the roots, the corn roots will give birth to new roots 24 hours after lodging, once again support equal to let the corn suffer secondary damage, the yield has not been helped, all There is no need to help.
3, corn stems and folds do not have to help the corn stems broken after the basics have not been saved, or to replant other crops!
4, corn bending is not good to help the corn slightly bent down can be self-recovery adjustment, as long as the rain on the sunny leaves on the leaves can be dried. If the situation of bending is more serious, it needs support, and the degree of bending will be greater after tossing.
5, the labor cost can not afford the corn to fall heavily, the cost of artificial support is too high, and the price of corn after harvest is low, so there is no need to spend money to hire people to help the fallen corn. This is one of the reasons why farmers’ friends choose not to help.
This year's corn market is not good and the summer rainfall is particularly high. If the corn field is lodging, take corresponding measures depending on the situation, or replant other crops to reduce losses.
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