What medicine is used for yellow leaf disease of beans?

Beans inevitably appear yellow leaves when growing, so what medicine is used for yellow leaf disease of beans? It needs to be analyzed in a specific situation.

Why do beans have yellow leaves?

In the process of bean growth, poor field management can easily lead to yellow bean leaves, and there are a variety of reasons:

1. If there are pathogenic pathogens in the soil, beans may suffer from root rot. After the bean has returned the root rot, the bottom leaves will turn yellow, and the plant will wither at noon and recover sooner or later.

2. the lack of trace elements in beans can also cause yellow leaves, which is characterized by the yellowing of the top leaves, which is generally caused by iron deficiency and zinc deficiency.

3. If the plant is not kept warm enough, or the temperature is too high, the veins of beans may turn yellow. In addition, improper use of drugs will also cause this reason, which requires a specific analysis of the specific situation.

What medicine does bean yellow leaf disease use?

1. The yellow leaves of bean caused by root rot should be sterilized and irrigated with carbendazim.

2. Bean yellow leaves caused by root rot caused by lack of trace elements can be properly sprayed with foliar fertilizer to supplement nutrition.

3. If the bean yellow leaves are caused by improper temperature and medication, the plants should be sprayed with green protection and brassinolide, and pay attention to reasonable watering and heat preservation.

III. Field management of bean planting

1. Planting beans requires deep soil and loose soil texture, so that drainage and irrigation are convenient. At the same time, drainage and irrigation ditches are dug to prevent waterlogged rotting roots.

2. The growth of beans needs sufficient light, reasonable watering and proper fertilization. Generally, plants are fertilized 2-3 times after flowering and podding, and urea is used 5-15 kg per mu. During the harvest period, it is also necessary to apply 25 kg of diamine or 25 kg of potassium dihydrogen phosphate per mu.