What's going on with tomato hollow fruit?

Tomatoes are familiar fruits and vegetables, rich in vitamins, sour and sweet, very unique. With the popularization of greenhouse cultivation technology, we can now eat tomatoes all year round, but many greenhouse tomato growers said that the greenhouse cultivation of tomatoes is prone to hollow problems, so what is the reason? How to prevent it? Let ’s understand .

Tomato Hollow

1. The reason for the hollow tomato

1. Variety issues

At present, there are hundreds of thousands of tomato varieties in China, which can be roughly divided into early-maturing varieties and late-maturing varieties according to the maturity of tomatoes. The reason why the tomato appears hollow is that the development of the tomato fruit is poor in the development of the placental tissue. This happens mostly in early-maturing varieties.

2. Poor fertilization

Tomatoes are hermaphroditic plants. When flowering and pollination, pollination should be accomplished by means of outside wind and insect pollination. If the tomato is pollinated by rainy weather for many consecutive days during flowering and pollination, the optimal pollination time of the tomato will be missed, which will affect the normal fertilization of the tomato and appear hollow.

3. Water and fertilizer management

The tomato growth process should be topped up in time according to the growth of the tomato. If the tomato fruit begins to expand, if too much nitrogen fertilizer, it is easy to cause the stems and leaves of the tomato to grow long and compete with the fruit for nutrients, resulting in the fruit hollow due to insufficient nutrients. In addition, if the tomato fruit expands rapidly, if it fails to top up in time, it will also appear hollow due to insufficient nutrients.

4. Too many results

At first, the tomatoes that bear fruit will not appear hollow, but as the tomato plant continues to grow and the inflorescence position continues to increase, the number of tomatoes bearing more and more fruits will increase the probability of the tomatoes appearing hollow. Tomatoes result in too many at one time, and some of the fruits that grow on the top will not have enough nutrients and water, resulting in hollowness.

5. Improper use of regulator

Tomatoes are hermaphrodite crops. In order to increase the pollination rate of tomatoes, vegetable farmers usually use regulators such as Zuoguolin and anti-fallin to increase the pollination rate of tomatoes. When the regulator is used, if the concentration is too high, or if the flower is repeatedly dipped, it will cause the tomato fruit to grow too fast, resulting in poor development of the placenta, resulting in hollow.

6. The temperature is too high

Although the tomato has strong heat resistance, when the pollination and expansion of the tomato, if the temperature is higher than 35 degrees for a long time, it will affect the pollination rate and expansion rate of the tomato, resulting in the hollow appearance of the tomato.

Tomato hollow reason

2. Preventive measures for tomato hollow

1. Lighting management

In the middle and later stages of tomato growth, it is necessary to properly split and pick leaves to enhance light and promote ventilation. Usually, after the fruit on the fruiting branch is picked, the side branches below it should be removed in time to ensure the nutrient supply of the fruiting branch, and at the same time remove all the leaves under the fruiting branch. The leaves on the ears cannot be removed to ensure that the upper fruits are well developed. If the light is insufficient, the light can be supplemented manually.

2. Reasonable watering

In the greenhouse, the growth of fruit is based on the premise of ensuring the normal growth of tomatoes. Generally speaking, the water content of farmland is about 65-75%. After the fruit trees drop fruit, the recommended water content in the field can be maintained at about 80% during the fruit development stage. During irrigation, water temperature control is particularly important, which affects the occurrence of hollow tomato fruits to a certain extent. In order to ensure the sustainability of tomato growth, it is recommended to water every tomato harvest.

3. Reasonable fertilization

The strong growth of tomato plants is inseparable from the coordination of fertilizers, the elements can be coordinated and complementary, and high yields can be achieved under the premise of healthy growth. Therefore, the application of a sufficient amount of organic fertilizer in the base fertilizer can also greatly reduce the abnormal growth that occurs during fruit growth. At the same time, we must pay attention to fertilization in every growth stage, remember to pay attention to phosphorus, potassium, light nitrogen fertilizer after flowering.

4. Topping and sparse fruit

In order to prevent the tomato from swelling due to too many results, only 3-4 fruits are kept on each string. After the tomato plant grows 2-3 bunches of fruit, it can retain 3-4 leaves to pick the tomato. After topping, it can prevent the plant from growing too long and promote the growth of branches. Keep 2 to 3 leaves after growing 2 bunches of fruit on the branch, and then top off the branch. When the branch grows again, 2 bunches of fruit are retained and 2 leaves are left on the fruit Topping, and so on.

5. Artificial pollination

Tomatoes grown in greenhouses generally require artificial pollination. When artificially pollinating tomatoes, wait for more than half of the first inflorescence to bloom and then use biological regulators to dip the flowers. Pay attention to the amount of flowers dipped each time. , So as not to cause too much pollination, but affect the expansion of tomatoes. When dipping flowers, pay attention to avoiding high temperature weather, it is best to start in the morning and afternoon after the temperature has dropped.

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