The latest causes of Tomato Hollow and Preventive measures

Tomato is a common vegetable, rich in vitamins, sour and sweet taste, and with the development of greenhouse technology, tomatoes can now be eaten all the year round, but many growers say greenhouse tomatoes are extremely prone to hollow problems. So what is the cause of tomato hollowness? Let's get to know it with the editor.

First, the cause of tomato hollowness.

1. Variety reasons

At present, there are hundreds of tomato varieties in China, and according to its ripening time, tomato can be roughly divided into early-maturing varieties and late-maturing varieties. The main reason for the hollowness of tomato is due to the poor development of placental tissue in the process of fruit development. this situation mostly occurs in early-maturing varieties.

2. Poor fertilization

When tomato is monoecious, it is necessary to pollinate with the help of external pollination channels such as wind pollination and insect pollination, but if there is continuous overcast and rainy weather during pollination, the best pollination time will be missed, thus affecting normal pollination and causing hollow.

3. The temperature is too high

Tomato has a strong heat tolerance, when pollination expansion, if the high temperature is above 36 degrees, then it will also affect the pollination and expansion speed of tomato, resulting in hollow.

4. Improper management of fertilizer and water.

In the process of bee colony growth, topdressing should be applied in time according to the growth trend. If there is too much nitrogen fertilizer after fruit expansion, it is very easy to cause stem and leaf culture, and fruit growth and development to grab nutrients, resulting in fruit hollow due to lack of nutrients. In addition, if the fruit is not topdressing in time during the rapid expansion of the fruit, the hollow will also appear.

5. Too many results

The newly fruited fruit will not appear hollow phenomenon, but with the continuous growth of the plant, the position of the inflorescence continues to improve, the tomato will bear more and more fruit, and the probability of hollow will become more and more. When the plant bears too much fruit at one time, the fruit growing at the top is hollow because of the lack of fertilizer and water.

II. Preventive measures

1. Lighting management

In the middle and later stages of tomato growth, it is necessary to prune and beat leaves in time to increase permeability. Generally, after picking, the lateral branches under the fruit branches are knocked off in time to ensure the nutrition supply of the fruit branches, and all the leaves under the fruit branches are removed at the same time. The leaves on the ear should not be removed to ensure the good development of the upper fruit, if the light is insufficient, artificial light can be carried out.

2. Rational watering and fertilization

Water is the premise to ensure the normal growth of tomatoes, generally speaking, the plot can be maintained at 60%, 75%, which can be maintained at about 80% during the fruit development period. Attention should be paid to the control of water temperature when irrigation, which can prevent tomato hollowness to a certain extent. The strong growth of tomato plants is closely related to the coordination of fertilizers. The application of organic fertilizer in the base fertilizer can cause abnormal fruit growth, and pay attention to the reasonable collocation of nitrogen, phosphorus and potassium.

3. Artificial pollination

General greenhouse cultivation of tomatoes need artificial pollination, to wait until the first inflorescence more than half of the flowering with biological regulators to dip flowers, pay attention to the amount of dipping flowers should not be too much, and it is best to dip flowers once, do not repeat dipping flowers. When dipping flowers, you should pay attention to avoid high temperature weather, preferably in the morning and afternoon when the temperature drops.

4. Pick the heart of the tree crown

In order to prevent the tomato from bearing too much fruit and affecting the fruit expansion, there are generally 3-4 nodes per branch, and 3-4 leaves can be retained after 2-3 clusters of fruits to pick the heart of the tomato, which can prevent the overgrowth of the plant and promote the growth of branches. After growing 2 clusters of fruits on the branches, we should keep 2-3 leaves and pick the hearts of the branches, and so on.

The above is the introduction of tomato hollow reasons and preventive measures, hope to help you, want to know more related knowledge, please follow us.