Remedial measures for the latest Fertilizer damage in Citrus

The amount of citrus fruit is large, which is more important for fertilizer management, and it is necessary to provide sufficient influence for its growth and development, which has a great impact on fruit quality and yield. However, there are many points to pay attention to in fertilization, a little carelessness will cause fertilizer damage, light growth will be limited, the tree will be weak, affecting the yield of the year, heavy branches and leaves will dry up, resulting in dead trees. Then how to remedy the citrus fertilizer damage? Let's get to know it with the editor.

1. Symptoms of obesity injury

Citrus fertilizer damage generally occurs within 10-60 days of fertilization, starting from the tip of the old leaf at the base of the branch or scorching the yellow flower, along with the formulation of new or deciduous leaves. When serious withered branches occur due to fertilizer damage, it will be found that serious rotten bark will occur for the main branches and lateral branches on the ground. after scraping off the rotten bark, it will be found that the bark is brown and the branches are withered and dehydrated. After digging the root, it was found that the root system of the fertilization site basically rotted, the root bark of fine root and thick horizontal root rotted and peeled, and extended to the root neck, trunk and main branch. Plants with less fertilizer damage generally cannot overshoot nearby shoots, and if fertilizer damage occurs before flowering, it is very likely that they will not bud and blossom.

2. Causes of fertilizer damage

There are many reasons for fertilizer damage, first of all, the fertilization position is unreasonable, the fertilization position is close to the trunk or big root, or the fertilizer is in direct contact with the root system, and the fertilizer concentration is too high, which makes it difficult for the root system to absorb water and nutrients, causing the branches to die. Or the applied organic fertilizer or farm manure did not fully ferment and mature, and after application, it will give off a lot of heat when it is mature, causing root burns, hindering the timely supply of nutrients and water in the aboveground parts, resulting in malnutrition in the underground and aboveground parts, resulting in the phenomenon of yellow leaves and withered branches. Applying a large amount of quick-acting fertilizer during fertilization will also cause root burns, which will cause great harm and are very likely to cause the death of big branches or the whole plant. In addition, in the process of foliar fertilizer spraying, the concentration of fertilizer solution is too high, which will also cause the leaves to be anxious and dry.

3. Remedial measures

For the fruit trees that have suffered fertilizer damage, effective remedial measures must be taken to reduce the harm. The fertilizer damage caused by soil fertilization should be irrigated in time, the fertilizer concentration should be diluted and the fertilizer damage should be reduced. If the fertilizer injury has hurt the root, it is necessary to remove the upper soil around the plant in time and dry the root for a short time to promote the growth of new roots. if the fertilizer injury is serious, we can take the method of root cutting, cut off the burnt root and dig it out, and the foliar fertilizer damage should spray water to the leaves in time.

The above is the introduction of remedial measures for citrus fertilizer damage. I hope it can help you. If you want to know more about it, please follow us.