What are the reasons for the slow expansion of tomatoes? How to solve it?

It is related to tomato varieties, the amount of organic fertilizer in the bottom fertilizer is less, and the fertility is insufficient, which affects the nutrition of the tomato and cannot keep up, resulting in slow tomato fruit expansion, if the nitrogen fertilizer is used excessively, it causes a lack of boron, potassium, magnesium and other nutrients, so that the tomato fruit swells slowly, and then it is caused by the problem of flowering management, the anther ratio is unreasonable or the flower bud differentiation is not good, which will also lead to small fruit and slow fruit expansion.

<> prevent plant growth, it is necessary to combine physical and chemical measures, control the amount of watering and reasonably control the amount of chemical fertilizer, and increase the application of biological fertilizer to promote root development. ResultsThe total amount of fertilizer absorbed in the peak period accounted for 50-80% of the total nutrients during the growth period, which not only required sufficient nitrogen, phosphorus and potassium fertilizers, but also required calcium, magnesium, sulfur, boron, iron and CO2 gas fertilizers. Insufficient fertilizer efficiency will affect fruit expansion.

Tomatoes cultivated with double stem pruning and elevated cultivation can leave 4 to 5 spikes of fruit topping per tree, and 3 spikes of fruit topping can be left for elevated cultivation with single stem pruning and elevated cultivation. If you are cultivating medium and late maturing varieties in large frames, single stem pruning, each tree can leave 5 spikes of fruit topping. Tomatoes are suitable for growing in a sunny place, if your tomatoes grow in the shade for a long time, and do not see the sun for a long time, the flowering and fruiting period of the plant comes very late, and the fruit setting rate is low, and the fruit does not grow for a long time.

The preparation of the medicine for tomato flowers is unreasonable, which will also affect the expansion of tomato fruits. Another is that the first layer of tomato fruit bears too much, resulting in insufficient nutrition for the upper layer of tomato fruit. In the process of tomato seedling growth, we should carry out appropriate pruning management according to the growth of the seedlings, that is, remove some excess branches, excess side buds and old leaves.

Overdense plants may cause tomato seedlings to grow, the second and third spikes of fruit rapidly expand, the plant needs more nutrients, the second top dressing can be carried out, 20 kg of compound fertilizer per mu, plus 10 kg of potassium sulfate。However, it is necessary to keep the soil moist and provide sufficient moisture** to allow the fruit to expand rapidly.

The soil is salinity and the temperature is low. The salt content is high, and the green moss and red moss will become more and easy to harden. Such soil salinity leads to poor root system of tomatoes, which leads to slow nutrient delivery, and reduced nutrient delivery capacity is not enough to supply tomato bulging fruit.

In winter, due to the low outdoor temperature of the greenhouse, the temperature, humidity and light in the greenhouse cannot well meet the needs of tomato growth, and the symptoms of small fruit and slow fruit expansion will occur. It is recommended that growers create suitable temperature, humidity, light and other conditions for vegetable growth in winter to ensure the normal growth and development of their tomatoes. The temperature is controlled at 25-30 during the day and 15-18 at night, and the temperature difference between day and night is 15-17, which is conducive to fruit expansion.

Humidity, the soil is kept dry and wet, and the humidity should not be too large, otherwise it is easy to cause diseases.

The factors that affect the slow expansion of tomato fruit include temperature, light, moisture, fertilizer, etc. The prevention and control methods include improving the thermal insulation performance of the shed and the light transmittance of the shed film, improving the soil water and fertilizer retention capacity, increasing the amount of organic fertilizer, and improving the soil.

The main reason for the slow expansion of tomatoes is improper water and fertilizer management. The temperature, light, moisture, fertilizer, etc. in the shed will affect the normal growth of the plants. The solution is to improve the thermal insulation performance of the shed and the light transmittance of the shed film, so that the temperature, humidity and light conditions in the shed can well meet the growth of tomatoes.

It can promote the reproductive growth of plants; Foliar sprays of boron, calcium and other trace elements. Improve the ability to retain water and fertilizer, increase the amount of organic fertilizer, and improve the soil.

In the fruit expansion period, the growth is very vigorous, the plant growth will increase nutrient consumption, will compete with the fruit for nutrients, at this time if you do not pay attention to the control of the growth, the fruit will often be small, but many people do not pay attention to this detail, so they began to use various methods, but the effect is not good.

It is recommended that we use nitrogen-containing fertilizer reasonably, and pay attention to the watering of water during the fruit expansion period, urea, especially compound fertilizer, must be appropriate, 10-15 days before expansion, you can take foliar spraying of high-concentration phosphorus and potassium fertilizer or organic acid boron-calcium foliar fertilizer with potassium dihydrogen phosphate, the purpose of this is to prevent the tree from being too vigorous, and supplement the nutrients needed for the bulging fruit.

In addition, in addition to nutritional control, it is also necessary to take other measures to control the plant overgrowth.

I believe that many farmers will encounter such a problem when planting tomatoes, that is, when tomatoes are planted, there will be slow fruit expansion. The reason why tomatoes will swell slowly in the process of planting is mainly due to the following reasons.

First, the issue of tomato varieties. We all know that there are many varieties of every crop, different varieties, and the same goes for tomatoes, there are many varieties. Therefore, we need to choose tomatoes that are suitable for our local environment and climate, so that the tomato harvest will be better.

In the process of planting, there is no phenomenon of tomato puffing.

Second, it may be due to insufficient fertilizer application. We all know that any kind of crop needs to be fertilized, but if we don't apply enough fertilizer, then the crops will not be able to grow if they don't have enough nutrients. Therefore, in the process of planting tomatoes, we must apply enough fertilizer to make the purple tomatoes grow strongly, otherwise there may be swelling of the fruit.

Thirdly, it may be due to the soil. In the process of growing tomatoes, many farmers use sandy soil, which has a poor ability to retain water and fertilizer, so tomatoes can obtain less nutrients. If we want to grow tomatoes, it's best to choose land with a high moisture content.

And if the fertility of the land is stronger, it will be more conducive to the growth of tomatoes, and there will be no tomato swelling.

I believe that through the above introduction, you already know why tomatoes swell in the process of planting tomatoes. So if you have the idea of growing tomatoes, be sure to plan well. And think of the corresponding solutions, otherwise when the tomatoes appear to expand after planting, it will cause a great economic loss to themselves, which is an act that outweighs the loss.

Tomatoes lack water and nutrients, do not do a good job of nutritional measures when tomatoes bloom, do not water and fertilize during the fruit expansion period, the temperature is relatively low, and the influence of insect pests will cause slow fruit expansion.

The reason for the slow expansion of tomatoes is related to soil moisture, soil nutrition, sunlight, moisture, air humidity, breeding time, breeding environment, etc.

It is likely to be caused by improper management, insufficient nutrition during the planting process, persistent low temperatures, long seedling age, or stunted growth.

In greenhouse production, if the tomatoes swell slowly in the peak fruit period in winter, it will seriously affect the income and fruit quality of farmers, and bring huge losses to farmers. Now many farmers report that their winter greenhouse tomatoes have not grown, and the fruit is small and the expansion is slow. So what is the reason?

In winter, due to the low outdoor temperature in the greenhouse, the temperature, humidity and light in the greenhouse cannot meet the needs of tomato growth, and the fruit will be small and slow.

It is recommended that farmers create suitable temperature, humidity, light and other conditions for vegetable growth in winter to ensure the normal growth and development of tomatoes. The temperature should be controlled at 25-30 during the day and 15-18 at night. The temperature difference between day and night is maintained at 15-17, which is conducive to fruit expansion.

In terms of humidity, the soil should be kept moderately dry and wet, and the humidity should not be too large, otherwise it is easy to cause diseases. The insulation effect of the greenhouse is poor, and the light transmittance of the greenhouse film is low, and diseases are easy to occur. Tomato fruits are small and the transpiration rate is slow in greenhouses, many of which are due to the many drawbacks in the construction of greenhouses.

If the rear apex angle is too small, the top surface camber is small, and the covering grass is thin. Such facility conditions, poor thermal insulation effect, affect the light transmittance of the greenhouse film, can not meet the requirements of tomato growth for suitable temperature and light conditions. It is recommended that greenhouse growers do a good job of greenhouse insulation, clean up the dust on the greenhouse film in time, improve light transmittance, and artificially increase the temperature of the greenhouse when the temperature is low, such as using heating equipment or heating blocks.

Poor soil fertility, insufficient organic matter content, and poor water and fertilizer retention capacity in the greenhouse are prone to diseases.

The soil in many greenhouses is sandy, the sandy soil has poor fertilizer retention capacity, and it is easy to develop malnutrition, coupled with the fact that some farmers only use the ternary compound fertilizer of strong fertilizer, the fertilizer utilization rate is not high, the nutrient content is incomplete, and the tomato is naturally difficult to grow normally, resulting in slow and small fruit expansion. It is suggested that farmers should supplement various medium and trace elements on the basis of nitrogen, phosphorus and potassium fertilizers while applying sufficient basal fertilizer. In terms of management, due to excessive leaf picking, tomato stems are prone to injury and stem bending.

First of all, when planting, we must choose the soil is more fertile and broad land, and we must use farmhouse fertilizer when fertilizing, do not use the fertilizer bought outside, and often water the plants, but also to prevent the occurrence of pests and diseases, if there are small insects, then we must spray insecticides in time. But I think the most important point is that it also has to do with the weather, the planting, the location, the fertilization and the air. I think that if we can do these things well, we will be able to solve this problem.

It may be because the temperature is too low in the planting process, the light temperature and moisture can not meet the growth of tomato fruits, and because the soil fertility is poor, the organic matter content is not enough, and it may also be because of the phenomenon of damaging tomato branches in the process of management and planting; In the face of this phenomenon, the soil should be improved in time, self-fertility should be enhanced, and at the same time, greenhouses should be built to improve the room temperature, light and moisture in the greenhouse.

You know, you must control the temperature reasonably, pay attention to the thermal insulation effect of the greenhouse, you must pay attention to the light conditions, control the temperature at about 30, and fertilize regularly, pay attention to the environmental situation, and prevent pests and diseases in advance.

I think it's probably because there's not enough light, it's probably because there's a lack of moisture, it's also because there's too much pesticide spraying, it's probably because the temperature is too low, and if it's very severe, there's a pest or disease.

It may be that there is less water when planting tomatoes, or it is possible that the nutrients of the soil are too low, and the water and fertilizer applied less during flowering will cause the fruit to be small and slow to expand.

The reason is that there is no proper watering, and there is no good prevention and control of some tomato diseases, so this situation will occur.

It could be due to improper watering, or it could be due to not doing a good job of weeding and pest control. That's why it's going to happen.

Why tomatoes are small. First of all, it's about the variety. Excessive fertilization and lack of the effects of various elements, such as lack of boron and manganese, can make tomatoes smaller.

If too much nitrogen or not enough potassium is applied, the tomato fruit will also become smaller. Then there is the lack of water in tomatoes, and the soil is too stiff, which leads to abnormal growth, which also causes tomato fruits to become smaller.

<> cause of slow tomato swelling. Related to tomato varieties, the recommended amount of organic fertilizer is small, the fertility is insufficient, which affects the nutrition of tomatoes, resulting in slow tomato fruits, if nitrogen fertilizer is used too much, resulting in a lack of nutrients such as boron, potassium, magnesium, etc., tomato fruits swell slowly, as well as low temperature and poor light transmission. It causes insufficient plant nutrient accumulation and slows the expansion of tomato fruits. If there are too many leaves, the nutrient accumulation of tomato will be affected, resulting in slow expansion of tomato fruits.

Management and control measures for slow tomato swelling. Choose varieties that are resistant and suitable for local cultivation.

The application of organic fertilizer, while controlling the application of nitrogen content, moderate growth, to prevent plants from bearing fruit on tomatoes, the amount of potassium fertilizer should be sufficient, and at the same time pay attention to the supplement of boron, calcium and other trace elements, and with 15 yuan to 20 kg of potassium nitrate mixed with water, at the same time the use of potassium dihydrogen phosphate and calcium hydrogen phosphate fertilizer, in order to promote fruit expansion. To extend the reasonable watering time and reduce the topping, the number of fruits on the tomato spike is generally not more than 3, which will affect the expansion of the upper fruit and the growth of the whole plant. At the same time, it is necessary to pay attention to ventilation and light transmission, control humidity, avoid high and low temperatures, and pay attention to reasonable leaf picking, removing diseased yellow leaves, old leaves, and dense leaves.

Tomato fruit management and preventive measures.

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