Symptoms and Control measures of Tomato Fertilizer injury

Tomato needs more fertilizer, so fertilization is an important light when planting, but attention should be paid to fertilizer damage when fertilization. once fertilizer damage occurs, it will not only waste fertilizer, but also cause great harm to the growth and development of tomato. So what should we do if there is fertilizer damage to tomatoes? Let's take a look at the detailed introduction.

1. Reason

As the name implies, fertilizer damage is caused by excessive fertilization, mainly a high concentration of chemical fertilizer, resulting in root damage, decreased absorption of nutrients, plants because there are not sufficient nutrients and water, so there are a series of symptoms affecting growth and development.

2. Symptoms

At the initial stage of plant damage, the leaves will appear gray or gray-white irregular spots, with the development of the disease, the spots will expand, the middle will be withered green, and the later spots will cause leaf perforation. Unlike diseases, these withered spots do not expand indefinitely, and the disease develops rapidly under the condition of high temperature and drought. In the application of too much nitrogen fertilizer, plants will be poisoned by absorbing too much ammonia, and nitrite accumulation will occur in the process of nitrification, resulting in poisoning, browning of roots and yellowing of leaves.

3. Preventive measures

To apply fertilizer scientifically and rationally, the amount of fertilizer applied at one time should not be too much, and the amount of fertilizer should be even. when applying high concentration chemical fertilizer, it should be watered immediately or flushed with water to control the concentration of fertilizer. At the same time, it is necessary to reduce the amount of chemical fertilizer and increase the application of organic fertilizer when fertilizing. if possible, biological bacterial fertilizer can be applied as organic fertilizer, using the method of layered application and deep application of the whole layer, so as to prevent the fertilizer from being exposed to the surface.

4. Remedial measures

When there are symptoms of fertilizer damage in tomato, the root system should absorb water to dilute the fertilizer liquid in the body when watering is accelerated in time, and at the same time, combined with foliar fertilizer spraying, a large amount of water should be sprayed to dilute the high concentration of foliar fertilizer liquid to reduce the damage. If the fertilizer damage is more serious, compound nitrophenol sodium, brassin, Jieshiling and other agents can be sprayed, which can promote the flow of cell protoplasm, improve cell vitality and promote the rapid recovery of plant vitality.

The above is the introduction of tomato fertilizer injury symptoms and control measures, hope to help you, want to know more related knowledge, please follow us.