The latest causes of yellowing of peanut leaves and its solutions

Peanut yellow leaf is a common phenomenon in the process of peanut planting, which is also a headache for farmers, especially the yellow leaf phenomenon caused by irrigation after rainfall, resulting in a reduction in peanut production. So what are the reasons for the yellow leaves of peanuts? How to solve the problem? Let's get to know it.

1. Zinc deficiency

The leaves of peanuts are yellow and white when they are deficient in zinc, and the leaves are smaller. The most obvious feature is that the leaves of peanuts are clustered and grow shorter. The phenomenon of zinc deficiency in peanuts generally occurs in the growing period, and the fruit expansion period is relatively rare, but this possibility can not be ruled out.

2. Nitrogen deficiency

When peanuts are nitrogen deficient, the leaves begin to fade to yellow from the old leaves, the leaves become smaller and thinner, and the plants will be relatively short. After summer peanuts enter the autumn, peanuts enter the critical period of fruit expansion. If Rain Water is too much, it will lead to the loss of trace elements in the soil and lead to the yellowing of leaves, especially in sandy soil.

3. Iron deficiency

Yellow leaves also appear when peanuts are deficient in iron, but only the leaves in the upper part are yellow, while the leaves in the lower part are normal, and the veins are also yellowed when there is severe iron deficiency. There is no obvious change in the size of its leaves, but the color has changed, so when peanuts appear yellow leaves, we can carefully observe its yellow leaf symptoms to determine whether it is caused by iron deficiency. After finding out the cause, we can supplement iron to make it recover.

4. Solution

The yellow leaves caused by the above three kinds of deficiency are relatively common, and in the process of peanut growth, many elements are often caused at the same time, so special attention should be paid to prevention and control. It is recommended that before the peanut yellow leaves, use 0.1% urea 10 grams, ferrous sulfate 20 grams, zinc chelate or zinc sulfate 10 grams, after spraying once, the peanut yellow leaf phenomenon can be effectively controlled. If you can't do it at once, you can beat it several times, depending on the growth of peanuts, or you can spray commonly used foliar fertilizer. In general, it is very important to give medicine three times.

The above is the introduction of the causes and solutions of peanut leaf yellowing. I hope it can help you. If you want to know more about it, please follow us.