The cause of Tomato Flower face Fruit

Tomato flower face fruit is a physiological disease of tomato, which mainly appears in the color conversion period of tomato fruit, and the color of tomato fruit is uneven, red and green. If the fruit is cut open, it can be found that the vascular bundle tissue of the fruit is black and rotten, which basically has no commercial value. So what is the reason for the occurrence of tomato flower face fruit? The following editor will give you a brief introduction, let's have a look!

1. Partial application of nitrogen fertilizer

When tomato is growing, its growth ability is relatively strong, so it is necessary to pay attention to the application of appropriate amount of fertilizer. If there is too much chlorophyll in tomato, it will inhibit the formation of lycopene and lead to macular phenomenon in tomato. And when fertilizing, we should pay attention to control the amount of nitrogen fertilizer. If there is too much nitrogen fertilizer, it will lead to too much ammonium ion in the soil and hinder the absorption of potassium by tomato roots. As a result, the transportation of tomato nutrition is blocked, and the tomato fruit will also appear flower face necrosis and other bad phenomena because of lack of nutrition.

2. The reason of illumination

Light is very important to the growth of tomato. In the process of tomato growth, if you encounter serious leaf diseases or excessive pruning and branching, the leaf area of tomato is too small. Then the leaves can not cover the fruit, so the fruit is easy to be exposed to direct sunlight for a long time and the temperature increases. In the environment of too high temperature, the lycopene formation of tomato fruit will also be affected, resulting in the yellowing of tomato fruit skin. However, it can not be long-term low light and low temperature, otherwise it will affect the photosynthesis of tomato, increase the absorption capacity of the plant and reduce the accumulation of nutrients in the plant.

3. Other reasons

When planting tomato, if the ambient humidity is too high, it will inhibit the transpiration of tomato plants, reduce the water absorption of roots, hinder the nutrition absorption of tomato, and lead to the phenomenon of flower face. Then there is the cause of continuous cropping and continuous cropping. Continuous cropping of tomato is prone to root rot, Fusarium wilt and other diseases, resulting in chronic plant death. Or long-term application of a large amount of chemical fertilizer, resulting in soil hardening, ignoring the application of elements such as zinc, calcium and iron, resulting in flower fruit.

4. Prevention and control methods

First of all, when we apply humic acids and biological fertilizers, we should pay attention to maintaining a good proportion of nutrient elements such as nitrogen, phosphorus and potassium. Control the amount of nitrogen fertilizer and increase the proportion of potassium fertilizer, especially in the period of tomato fruit development. Then watering should be kept dry and wet, mainly with a small amount of water. Then keep the temperature in the shed and control the temperature difference. Pay attention to the planting density, do not plant too dense, avoid poor plant permeability and affect ventilation. Finally, we should pay attention to spraying micro-fertilizer to supplement trace elements for plants and reduce the phenomenon of flowers, faces and fruits.

The above is a brief introduction to the cause of tomato flower face fruit. That's all for today's introduction. This article is for reference only. I hope it can help you all.