Do you know what causes corn yellow feet?

Recently, I visited the market in the northeast and Inner Mongolia and found that the yellow foot phenomenon of corn in some areas is particularly serious, and it is now mid-August, and there is still some time before the harvest of corn. Here are a few reasons I've summarized to share with you:

First: drought. Some areas of Jilin have been drought for more than 40 days, the soil is compacted, and the root system cannot absorb fertilizer and water normally, resulting in the yellow feet of the plant and even the death of the whole piece.

Second: waterlogging. This year's Heilongjiang and Inner Mongolia in some areas of the rain is more frequent, but also affected by the flood of the Nen River, Songhua River basin, some plots have waterlogging, corn soaked in water for a long time, the root system can not carry out aerobic breathing, resulting in root system fertilizer absorption, water absorption function loss, and even rot.

Third: leaf spot disease in corn. Such as corn size spot disease, gray spot disease, etc., the leaves appear one after another spots, can not control will cause leaf death.

Fourth: insect pests. For example, red spiders appeared in individual areas, and the spray was not found in time, which eventually led to the death of leaves and plants.

Fifth: defertilization. There are several cases of defertilization, some of which are bought with inferior fertilizers, and the content is not enough. There is also the failure to follow the required amount of fertilizer and the method of fertilization. Drought and waterlogging are also one of the causes of defertilization. And they are mainly based on nitrogen removal fertilizer, so it is necessary to supplement nitrogen fertilizer in time when there is a defertilization situation, so as not to cause yield reduction.

Sixth: The normal aging of the plant is time.

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