What if the leaves of lemon trees turn yellow?

Lemon taste extremely sour, coupled with its beauty effect, so it is very popular with female friends and pregnant women, in addition, it can be used to make seasonings, cosmetics and medicines, a wide range of uses. Rich in vitamin c, it has the effect of invigorating the stomach and relieving cough, and it has a very wide planting area in our country, but many fruit growers find that the leaves of lemon trees begin to turn yellow when they are planting. What's going on at this time? Come to the pro-agricultural network to see the reason why the leaves of lemon trees turn yellow.

1. Iron deficiency or nitrogen deficiency

Lemon trees appear yellowing in their leaves when they are deficient in iron or nitrogen, and it is easy to confirm which element is deficient. If lack of iron, the mesophyll tissue of leaves will yellowing; if lack of nitrogen, the veins of leaves will yellowing. Therefore, through careful observation, we can tell whether there is a lack of iron or nitrogen.

Solution: after identification, the corresponding fertilizer can be applied. If yellowing occurs in the seedling stage, attention should be paid to the concentration during fertilization, so as to avoid damage to the seedling root system caused by heat dissipation during fertilizer decomposition, and it is best to water the fertilizer so that it can be absorbed quickly.

2. Malnutrition

Like iron and nitrogen deficiency, plants lack nutrients, which should not be supplied after flowering, resulting in yellowing and falling leaves.

Solution: if this happens, you can first spray potassium dihydrogen phosphate solution, which is not only rich in nitrogen, phosphorus and potassium, but also contains other trace elements, which can provide good needs for the growth of lemon trees.

3. Root rot

Improper watering and long-term overcast and rainy weather lead to too much water in the soil, which is easy to cause soil consolidation, poor permeability, difficulty in breathing and hindering the growth of lemon roots. these reasons can easily lead to root rot, and then the leaves begin to yellow. in severe cases, lemon trees will die.

Solution: first dig up part of the soil of the root system to see if it is really rotten and what about the rotten roots. If it is a small range of rotten roots, the rotten roots of the tree can be removed, and medicament can be applied to prevent the invasion of germs. after the wound recovers, it can be replanted, and after replanting, it is important to keep in mind that it is not suitable for more watering and higher fertilization concentration.

4. Diseases and insect pests

Many kinds of diseases and insect pests will cause lemon leaves yellowing phenomenon, such as scab, canker, they occur when the leaves appear yellow spots, insect pests are also the case, resulting in yellow leaves.

Solution: at ordinary times, we should strengthen management and spray corresponding chemicals for prevention and control.

Is also pro-agricultural network brought lemon leaves yellowing how to do, about lemon leaves yellowing content introduced here, I believe you understand the causes of lemon leaves yellowing, can solve it in time, more agricultural knowledge, please pay attention to pro-agricultural network.