The yellowing and loss of green leaves in the later stage of corn is one of the common problems in the growth process of corn, and it is also a problem that farmers are more concerned about. In the following, we will analyze the reasons for the yellowing and greening of corn leaves in the later stage from many aspects, and propose corresponding solutions.
1. The reasons for the yellowing and loss of green leaves in the later stage of corn.
1.Lack of water and drought.
In the later stage of corn growth, if the moisture** is insufficient, the leaves will lose green and yellow. This is because water is one of the important raw materials for plants to carry out photosynthesis, and the lack of water will lead to the weakening of photosynthesis, which in turn will affect the normal growth of plants. At the same time, insufficient water will also affect the absorption of nutrients in the soil by plants, resulting in green and yellow leaves.
2.Nitrogen deficiency.
Corn requires a lot of nitrogen fertilizer to grow, and if there is not enough nitrogen fertilizer in the soil or if it is not used properly, it will cause corn leaves to turn yellow. This is because nitrogen fertilizer is an important element in the synthesis of protein and other important organic matter in plants, and the lack of nitrogen fertilizer can lead to slow growth and green and yellow leaves.
3.Pest.
Corn will be attacked by a variety of pests and diseases during the growth process, such as corn borer, aphids, leaf spot, etc. These pests and diseases can affect the normal growth of plants, causing the leaves to lose their green and yellow color. At the same time, pests and diseases will also affect the absorption of water and nutrients by plants, aggravating the yellowing of leaves.
4.The soil is too acidic or too alkaline.
The pH of the soil also has a great influence on the growth of plants. If the soil is too acidic or too alkaline, it will damage the structure of the soil, affect the absorption of water and nutrients by plants, and cause the leaves to lose green and yellow.
If the soil is too acidic or too alkaline, the pH of the soil can be adjusted by applying acidic fertilizer or alkaline fertilizer to keep it within the appropriate range. At the same time, it can also improve the soil structure and improve the water and fertilizer retention capacity of the soil by increasing the amount of organic fertilizer.
To sum up, there are many reasons for the yellowing and greening of corn leaves in the later stage, and it is necessary to analyze the specific situation and take corresponding solutions. Through the comprehensive application of reasonable watering, scientific fertilization, pest control and soil pH adjustment, the problem of yellowing and green leaves in the later stage of corn can be effectively solved, and the normal growth and yield of corn can be promoted.