What nutrients are needed for tomatoes in their early flowering stages

Any plant should be supplemented with phosphorus and potassium fertilizer during the budding period, which can make the flowers large and colorful, and the fruits full.

Nitrogen fertilizer should be used sparingly or without nitrogen fertilizer during the budding period. Nitrogen fertilizer can promote the growth of branches and leaves, which compete with flowers and fruits for a lot of nutrients.

Tomatoes generally take 1 to 2 months from flowering to ripening. After the tomatoes bloom, they are pollinated within three days, after which the fruit begins to swell. Usually the time of expansion is between 7 and 30 days, and after 40 days, the tomatoes will start to color until they are fully ripe.

It takes about 20 days, which will be shortened or extended depending on the variety and regional climate.

Tomatoes take 45-50 days from flowering to maturity, and summer and autumn are the ripening and fruiting periods for tomatoes. Tomatoes prefer loose, fertile, well-drained, nutrient-rich soils, and well-rotted organic fertilizers are added to the soil.

Generally, it takes about 45 days to promote the ripening of tomatoes, and the quality of tomatoes can be guaranteed, so it should be carefully cultivated.

1. Remove the first flower of each spike or pluck the fruit of one spike. This is due to the fact that one flower per spike opens relatively early.

The fruit of this flower grows relatively quickly, and it is easy to produce deformities, and after the fruit is set, it will also affect the nutrients of other flowers**. At the same time, if the plant is relatively weak, it is easy to fall into the tree, which is very unfavorable to the high yield of tomatoes.

2. Try to get more flowers, leave less fruits, and keep high-quality fruits. After each flower opens, there will be 3 to 4 flowers growing together, and at this time it should be mastered to spot the flowers after the flowers have opened. During the change of temperature, it is necessary to adjust the concentration of spot anthers at the right time to avoid the concentration of spot anthers being too large or too small, which hinders the normal development of the fruit.

Two to three days after one dot per spike, 3 to 5 more flowers will appear.

3. It is necessary to ensure the best fertilizer and water and enhance the temperature in a timely manner. Usually the tomato fruit expands rapidly 1 to 3 weeks after flowering, and it is necessary to ensure a balanced amount of water and fertilizer**. When the weather conditions are good, watering is carried out, and the water flushes with the application of high-potassium water-soluble fertilizer and biological fertilizer.

During this period, relatively high temperatures are ensured. Under the condition of large ventilation, the temperature is raised to 28 degrees Celsius, which enhances the photosynthetic rate of plants and improves the accumulation of nutrients. At night, a night temperature of 18 degrees Celsius to 20 degrees Celsius is maintained in the first half of the night, which is very beneficial for the adequate transport of nutrients to the fruit and other growth.

Tomato planting time.

The planting time of tomatoes is mainly concentrated in January-March and July-August. In the spring open field cultivation, seedlings are generally sown from mid-February to early March in Beijing; In autumn, it is cultivated in the open field, and the south of the Yangtze River such as Shanghai and Nanjing is generally sown from late July to early August, and the eastern part of Sichuan is sown in early July. Therefore, the specific tomato planting time can be determined according to the field situation.

Tomatoes usually ripen during the summer months.

Tomatoes are usually ripe in the summer season, tomatoes are sown at different times, the time of ripening will be different, the tomatoes sown in February and May will mature in summer and autumn, and they can also be sown between July and August in autumn, and can be carried out and collected in November and February, and the planting time of wintering tomatoes is between September and November, and they can be planted in January of the following year.

Tomatoes ripen in summer.

Tomatoes belong to common vegetables in life, many people are not very clear about what season tomatoes are ripe, tomatoes are usually ripe in summer 6 to 7 months, tomatoes are usually sown in spring in May, and it generally takes only 30 to 40 days from flowering to fruit.

Tomatoes can be sown between February and May in spring, mature around June, sowing in autumn between July and August, planting in September, and harvesting in November and February.

Some tomatoes can also be sown around November and ripen between March and June of the following year, and the overwintered tomatoes are also raised between September and October, planted in November, and planted around January.

Tomatoes need to be soaked in water for 1 2 hours before sowing, and then placed in about 50 warm water for 15 minutes.

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The grapes can be watered during flowering.

This is because the management of the grapes during flowering is very important and determines the fruit set. Generally, it is necessary to water once before flowering to ensure the moisture of the soil. It can be watered during flowering, but it is not recommended, as long as the soil moisture is maintained at 50%.

Because the temperature of the soil will decrease after watering, the absorption capacity of the plant will also decrease, so that the fruit setting rate of flowering will decrease within three days, so it is necessary to grasp the watering time and not water indiscriminately.

During flowering, grapes do not require much water, and when the soil is well hydrated, it does not need to be watered too much. Sufficient moisture is good for the growth and opening of the flowers, and it is important to ensure that the grapes have enough moisture during the maintenance period.

Hello dear dear, with phosphate fertilizer, the fertilizer applied to tomatoes from planting to flowering and fruiting is also different. When some early-maturing varieties are planted, the fruit develops very quickly. The first few fruiting times of the plant are relatively tight, and the requirements for fertilizer and water are also very high.

Before planting, it is necessary to add phosphate fertilizer to the base fertilizer in the soil, and it is necessary to add a sufficient amount at one time. After the tomato is successfully set in fruit, it means that it has entered a critical period of simultaneous vegetative growth and reproductive growth of the plant. This is the peak time when plants need fertilizer.

It is necessary to use nitrogen, phosphorus and potassium compound fertilizer for plants, especially in the winter when the temperature is relatively low, and the ternary compound fertilizer and water-soluble fertilizer can be applied together. During the fruit-setting period, an appropriate amount of puffing fertilizer should be applied.

Tomatoes, that is, tomatoes, are also called tomatoes, persimmons. Its body is tall and rice, and the whole is raw with sticky glandular hairs, with a strong odor, and is widely cultivated in the northern and southern parts of China. According to the data of the Solanaceae family, the total peduncle length of tomato inflorescence is 2-5 cm, often 3-7 flowers, the calyx is radial, the corolla is radial, the berries are oblate or nearly globular, fleshy and juicy, the seeds are yellow, and the flowering and fruiting period is summer and autumn.

When do tomatoes (tomatoes) usually bloom and bear fruit?

The growth and development cycle of tomatoes is the period from seed sowing and germination to the maturity of the first cherry blossom panicle seeds. It is divided into four stages: germination stage, seedling stage, flowering and fruit setting stage and fruiting stage.

First, the germination period.

From seed germination to the growth of the first true leaf of the two ** leaves is the development period, which is generally 7---9 days.

Second, the seedling stage.

The seedling stage is from the first true leaf to the appearance of large flower buds, and it generally takes about 50 days for seedlings at a suitable temperature, 60-80 days in the cold season, and about 40 days in the high temperature season.

3. Flowering and fruit setting period.

This period takes 15---30 days, and early or high-temperature cultivation takes a short time, and vice versa is longer.

Fourth, the result of the song period.

From the first inflorescence to the completion of all the fruits is the fruiting period, it takes 70-80 days in spring, and the solar greenhouse lasts from July to August. The fruiting period of tomatoes is the time when nutrients and water are needed the most, and it is also an important period for management.

Tomatoes should be fertilized every 10-15 days with well-rotted human and animal fertilizer and fast-acting phosphorus and potassium fertilizer, and attention should be paid to the amount of nitrogen fertilizer should not be too much. In order to prevent the phenomenon of tomato flowering during the flowering period, you can use 10-20ppm2,4-d liquid medicine to soak or coat the flowers during the flowering period, or spray the flowers with 20-30ppm tomato, pay attention not to excessively.

Tomatoes need more fertilizer during the flowering period, for example, in the flowering period, apply rotten human fertilizer and fast-acting phosphorus and potassium fertilizer every 10-15 days, and apply light human and animal fertilizer in the later stage to prevent premature aging and increase the yield in the later stage. Pay attention to the amount of nitrogen fertilizer should not be too much.

In addition, in order to prevent the phenomenon of tomato flowering during the flowering period, you can use 10-20ppm2,4-d liquid medicine to soak or coat the flowers during the flowering period, or spray the flowers with 20-30ppm tomato, so as to promote the lush flowering after spraying, which is conducive to better flowering and fruiting. Note that there should be no fertilization.

1. Fertilization time

Tomato fertilization is best done in a sunny morning, so that the plants can better absorb the fertilizer and promote lush growth. Do not damage the branches and leaves when fertilizing, reduce the chance of virus transmission, prevent the harm of diseases and insects, and carry out root topdressing if conditions are possible to supplement the lack of soil fertilization.

Second, the combination of fertilizer and water

Watering after each fertilization application and once the next day will promote better dilution of the fertilizer, achieve a combination of fertilizer and water, allow the tomato root system to fully absorb, and promote flowering and fruiting. It should be noted that it should not be watered too much, otherwise it will cause soil water accumulation and fertilizer damage, resulting in root rot and death.

<>Tomatoes are a very common vegetable in our country, and the planting area is also increasing. When we grow tomatoes, we need to adjust the management methods according to the growth period of the tomatoes. And when tomatoes are in their first flowering stages, management is even more important.

1. Temperature management.

At the beginning of the flowering period of tomatoes, temperature control is very important. When the tomatoes are in bloom, the temperature should be controlled at about 25 degrees Celsius during the day and 13 degrees Celsius at night. The temperature difference between day and night should not be too small, otherwise it will affect the flowering and fruiting of tomatoes, reduce the yield and fruit quality.

In addition, tomatoes are very sensitive to changes in temperature during the flowering period. Especially when it comes four days before and after flowering. Be sure to pay attention to control the temperature, the temperature should not exceed the range of 12-30 degrees, otherwise it will have a great impact on the flowering, pollination and fertilization of tomatoes.

2. Pruning and pruning.

Then, when the tomatoes are in early flowering, we also have to do a good job of pruning and threshing. In particular, it is necessary to pay attention to the size of the first spike flower on the tomato plant, if the first spike flower is too large, it will hinder the pollination and fruit setting of other flowers, so it is necessary to remove it in time. Then when the first ears of fruit are produced, pay attention to the time of threshing.

Don't do it too early, as it will affect the growth of tomatoes in the early stage. It is usually done when the stick is about 11 cm long. Then, after the first ear is seated, the upper part of the plant is removed.

Be careful not to allow the plant to produce too many wounds, and also do a good job of hanging the vines.

3. Precautions for dipping flowers.

When tomatoes are in early bloom, dipping is very important. And when we dip the flowers, no matter what the dipping agent is, we must pay attention to adjust the concentration according to the change in temperature. And remember the flowers that have been dipped to avoid repeated dipping.

It should be dipped sooner rather than later, and should be done in the morning of the day of flowering. And because the first flowering period of tomatoes is generally not known in early spring, low temperature and high humidity at this time are easy to cause diseases. Therefore, we should also do a good job in the prevention and control of diseases, and we can add an appropriate amount of promethoxymethin, Shijiale and other agents to the anther solution.

4. Fertilizer and water**.

Tomatoes are in the middle of half a month after flowering, so be careful to make sure you have enough fertilizer and water. When the weather is good, it can be watered appropriately, and then an appropriate amount of high-potassium compound fertilizer and biological fertilizer can be rushed. At this time, it is necessary to pay attention to increase the temperature appropriately, if the ventilation is good, then the temperature can be increased to about 28 degrees.

Promote the photosynthesis of tomatoes and increase the accumulation of photosynthetic substances in plants.

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