After planting tomatoes, how should I tell if the seedling slowing period is over?

First of all, observe the branches and leaves, if there are new shoots, it means that it is not over, secondly, observe whether its branches have hardened, most of them are still soft, and finally observe whether it has flowering bones, if not, it is not over.

Generally, after the tomato is planted, you can judge whether its slow seedling period is over, you can see whether its fruit will fall more seriously, or it will not grow fruit, it will wither quickly, so you can judge whether his slow seedling period will end.

About 10 days after planting during the field management of the slow seedling period, before the end of the slow seedling, watering and top dressing are generally not used. The first is to keep warm and promote seedlings, and water dark water after slow seedlings, which should not be too large, and cultivate after watering.

Soil clay weight, insufficient application of organic fertilizers such as chicken manure and rice husk manure, poor soil permeability, and poor rhizosphere environment are one of the important reasons for the delay in the growth of tomatoes after planting. For the case of heavy soil clay, it is best to change the good soil before planting vegetables. For planted tomatoes, the rhizosphere environment can be improved through the following measures.

When selling tomato seedlings, most people will buy some tomato seedlings that grow relatively low, implying that tomato seedlings that grow tall and even some are about to bloom are often disliked. Even if it is cheap for them, some are greenhouse autumn stubble tomatoes: choose more early and medium-ripening varieties, generally in early June when the weather is hot for seedlings, tomato seedlings are relatively short, generally 20-25 days, plant height 15-20cm, with 4-5 leaves when planting.

Tomato seedling transplanting with flowers is suitable for greenhouse planting, open-air planting, large watering, low survival rate, suitable for transplanting without flowering seedlings. Here's how. Since you don't have seedlings, you need to choose good seedlings when buying tomato seedlings, which is conducive to planting and improving the survival rate.

What should I do if I buy a tomato seedling with a bud when I buy it? The best period for transplanting is 6 to 10 leaves, divided into early flowering and full flowering. If transplanted at the early flowering stage, the nutrients will fall if the seedlings are not flowered, and the yield will be reduced if there is no flower.

Reasonable watering should not be watered, so as not to cause soil water to cause roots. Be diligent in hoeing. After each watering, it is necessary to hoe in time to improve the air permeability of the soil and promote the growth and development of the root system.

Flush application of products containing humic acid, algae and other products that regulate the soil aggregate structure. After the tomatoes are planted, they can be flushed with more organic activation nutrients such as Jiamei Dividend, Profit, and Hailibao, which can increase the content of organic matter in the soil, improve the soil aggregate structure, and improve air permeability. Mulch straw to alleviate topsoil compaction.

The varieties with strong roots are suitable, transplanting with flowers and transplanting few seedlings grow phenomenon, as long as the appropriate amount of watering several times, with some fertilizer to raise roots and roots, the first handful of fruits to leave two to three fruits, can be left normally in the future, I Northeast Liaoning Fuxin brick wall greenhouse, almost the same kind of survival rate is high, and it will soon be able to return to green growth. If the seedlings are too large, first, it will cause damage to the roots; The second is that the nutrients absorbed by the roots cannot meet the needs of the plant. Do you want to keep the flowers?

My point is "don't". Why? If the flowers are spotted at this time, the tomato seedlings that have not yet sprouted will focus on reproductive growth in advance, resulting in a weak tree phenomenon.

Without a robust plant, it is difficult to have good yield and quality.

Tomato seedlings with flowers, indicating that the tomato seedling stage is too long, and planting too late will affect the robustness of tomatoes, make the plants weak and affect the yield. In particular, the fruit of the younger ear is easy to develop and is small, and does not form a commodity value.

At the time of seedling, the date of seedling raising should be calculated forward according to the time of transplanting, the seedling period of tomato after the general autumn delay is high temperature in summer, the temperature is high, the seedling grows fast, the larger the tomato seedling, the more fertilizer and water absorbed by the root system, the more likely it is to appear to grow seedlings, generally in this period, tomato seedlings have about 4 weeks, that is, 28 30 days can reach the standard of planting, spring seedlings, tomatoes planted in summer, generally need 7 8 weeks of seedling age. Master the sowing density, the sowing of tomato seeds is not as dense as possible, nitrogen control at the seedling stage, and time seedlings, seedling beds apply foot fertilizer, generally in the seedling stage will not appear lack of fertilizer.

The soil is very fertile, the pH should be appropriate, the number of watering should be controlled, the fertilizer should be applied reasonably, the planting should not be too dense, and some chemical sprays can prevent the tomato seedlings from growing.

You can reduce the amount of watering appropriately, but also reduce the amount of fertilizer appropriately, do not let the temperature difference too much, and do not let the soil moisture too much.

Abstract 1, it is necessary to water reasonably, and avoid watering too much, so as not to cause bad roots caused by soil waterlogging.

2. It is necessary to hoe diligently. After each watering, it is necessary to hoe in time to improve the air permeability of the soil and promote the growth and development of the root system.

3. It is a product that regulates the soil aggregate structure containing humic acid and algalin. After the tomatoes are planted, they can be flushed with more organic activation nutrients such as Jiamei Dividend, Profit, and Hailibao, which can increase the content of organic matter in the soil, improve the soil aggregate structure, and improve air permeability.

4. It is to cover straw, etc., to reduce the compaction of the surface soil.

Tomato seedlings have short internodes and slow growth.

Hello, I'll answer it for you right away. As far as I know, it should be the poor aeration of the soil that causes the slow growth of the root system. Soil clay weight, insufficient application of organic fertilizers such as chicken manure and rice husk manure, poor soil permeability, and poor rhizosphere environment are one of the important reasons for the slow development of tomatoes after planting.

In the case of heavy soil clay, it is best to improve the soil before planting vegetables.

1. It is necessary to water reasonably, and avoid watering too much, so as not to cause bad roots caused by soil waterlogging. 2. It is necessary to hoe diligently. After each watering, it is necessary to hoe in time to improve the air permeability of the soil and promote the growth and development of the root system.

3. It is a product that regulates the soil aggregate structure containing humic acid and algalin. After the tomatoes are planted, they can be flushed with more organic activation nutrients such as Jiamei Dividend, Profit, and Hailibao, which can increase the content of organic matter in the soil, improve the soil aggregate structure, and improve air permeability. 4. It is to cover straw, etc., to reduce the compaction of the surface soil.

My family has also planted tomatoes before, and I personally recommend that when applying pesticides or fertilizers, they should be mixed with the soil before planting to avoid too concentrated pesticides or fertilizers and damage the root system.

It's my pleasure to help you, and I hope I help you

The planting periods of overwintering stubble and winter and spring tomato with delayed seedling stage management were "Hanlu" to "frost fall" and "Dahan" to "Lichun", respectively. All of them are in the cold period of the external climate, and the management should pay attention to improving the greenhouse temperature and cold protection. Immediately after the main meal, after a Chongqing loosening of soil, cover with mulch, adjust the greenhouse temperature to the temperature of 25 30 during the day, 15 17 at night, 10 cm at night and 16 20 at night.

The maximum temperature at noon does not exceed 32, and it should be cooled and ventilated immediately at 32 o'clock.

The planting period of Qiudong beard tomato (autumn bulbaritis) and moon water salt (plural salt) tomato was delayed, and the planting period of autumn cave beard tomato was from "summer heat" to "white dew", and the planting period of moon water salt tomato was from "entering the river" to "plain man". All of them are in a period of high external temperature, and the indoor temperature of the warehouse is high, and it is easy to adjust the temperature. The focus of management is to block sunlight and reduce leaf evaporation.

Loose soil ventilation helps in root respiration and new root development. Shelter from rain, wind and hail, and prevent insect pests.

After the main meal, do not cover the mulch or postpone the mulch, and plough the loose soil in the second or third time. Cover the slope in front of the shed with a blackout net (blue is the most suitable, followed by silver-gray) and then extend the shed. After 5 6 days, the awning is peeled off, the film is covered, the ventilation is diurnal and night, and the minimum temperature is controlled at 22 27 during the day and 14 17 at night.

On the basis of sufficient planting and slowing down the number of seedlings, water is generally not injected during this period. If the tomatoes are experiencing hot and dry weather during this period, when the seedlings are dry, they can be lightly sprinkled once in the morning on a sunny day. The rainy season is not over yet, so it is necessary to cover the film to protect against the rain before heavy rain.

Pay attention to ventilation day and night, so that the indoor air humidity of the warehouse is kept at about 60%.

Autumn stump tomatoes are usually sown in late July and early August, and sprout transplantation is scheduled for early September, with ripening and harvesting in November. If you plant a plastic greenhouse, the harvest time can be extended to about February of the following year. Tomato seedlings are currently being officially consumed.

So, what do growers need to pay attention to when transplanting tomato seedlings to make the seedlings slowly live faster? In most areas, the temperature has dropped a lot, but the temperature during the day is relatively high, and the tomato seedlings are prone to apprenticeship after they are officially eaten, which affects the subsequent flowering and fruiting, and even physiological diseases such as yellow leaves and tendrils may occur. Most of these problems are related to improper administration of water after a meal.

When planting, water enough to slow down the seedlings, and generally do not water before flowering, so as to prevent excessive water and plant growth and flower and fruit drop. When the tomatoes grow to the size of eggs, you can top the fertilizer once, water in time after the top dressing, and stop watering 7 to 10 days before harvesting.

Under normal circumstances, tomatoes are watered while planting, and then watered again 7-10 days after watering, until the first ear of fruit is like the size of egg yolk. As a result, the seedlings in the early stage are smaller, the amount of foliar transpiration is small, the number of fruits is also small, and the amount of ventilation is also small, and it is generally watered once every 7 10 days (the amount of water should be small).

After the tomato is planted, it is necessary to start watering the planting water and slow seedling water, many friends say that they don't know whether the two water should be watered with large water or small water, in fact, the two times of water are different. When we plant, we generally need to water a lot of planting water, because the planting temperature in September is also relatively high, watering a lot of water can appropriately reduce the ground temperature and promote slow seedlings, so we should water thoroughly. After two or three days of planting, it is not recommended to use large water for watering seedlings.

After watering, other management is required during the seedling retardation period.

Watering, checking the seedling condition, preventing diseases and pests, moderate shading, paying attention to the above four aspects, and not ignoring every detail, so as to promote the temperature of the seedlings in the seedling stage should be properly controlled.

After transplanting seedlings to more than 30 days before planting, it is the flower bud differentiation period, the temperature during this period has a great impact on the flower bud differentiation, and appropriately reducing the night temperature can significantly increase the number of flowers and reduce the first inflorescence node position, so as to promote the early maturity and high yield of tomato, and can effectively control the growth of tomato seedlings. At the same time, it is necessary to maintain a large temperature difference between day and night, in order to facilitate the accumulation of nutrients, so this period should be carried out temperature change management, according to weather conditions, in the morning seedbed to maintain 25 28, 20 25 in the afternoon, 14 17 in the first half of the night, 12 13 in the second half of the night. The suitable ground temperature at the seedling stage is 20 22, but during the day, when the temperature is high, the ground temperature can be appropriately lower, keeping about 20; At the same time as the air temperature is lowered at night, the ground temperature should be higher, that is, about 22, which is conducive to the cultivation of robust seedlings.

If the soil is heated by electric heating, the power should be cut off during the day and heated at night, which can meet the requirements of ground temperature. Many studies have proven that the management of low temperature and high ground temperature for tomato seedlings is much better for future flowering and fruiting than low temperature and high ground temperature.

In the seedling stage, the soil should be kept with a certain amount of moisture, and the bed soil should be kept moist frequently, and the flower buds should be differentiated, and if the bed soil is in a dry state, the flower buds will form slowly. Some vegetable farmers think that soil moisture at the seedling stage will cause growth, and practice has proved that the direct cause of seedling growth is not watering at the seedling stage, but high bed temperature, weak light, small nutrient area, and overcrowded seedlings. If the light is sufficient, the temperature is suitable, especially the night temperature is appropriately lower, the nutrient area is larger, and sufficient water is maintained at the seedling stage, which can promote the growth of seedlings, shorten the seedling period, and prevent seedlings from aging.

On the contrary, the seedling period controls the water for a long time, carries out the so-called "squatting seedling", will make the seedling age, although the appearance can resume growth after watering, but due to the sequelae of "squatting seedling", the nutrient content of nitrogen, phosphorus, potassium and other nutrients in the seedling body is too low, and it cannot be recovered for a while, which causes adverse effects on the seedlings, such as slow differentiation of flower buds, poor development of various organs of flowers, flower becoming smaller, etc., and the yield will be seriously reduced after planting.

In the later stage, due to poor management or continuous rainy days, when the seedlings have a tendency to grow, "chlormequatin" should be sprayed to control the growth of seedlings.

The main principle is that the ability of tomato seedlings to absorb phosphorus and potassium is stronger than that of nitrogen, so the foliar spray will play a role in controlling the prosperity, and at the same time spray amino acid foliar fertilizer + imported chelated boron fertilizer.

Under the premise of applying enough organic bottom fertilizer to tomato, we must pay attention to the coordination of the three elements when topdressing, we must pay attention to the topdressing of phosphate and potassium fertilizer, control the use of nitrogen fertilizer, too much will make the plant grow, you can use Yanwo potassium dihydrogen phosphate, with the advantage of "three seconds instant", the introduction of foreign double technology, so that potassium dihydrogen phosphate can be better absorbed by tomatoes, and Yanwo potassium dihydrogen phosphate can also achieve a wang control effect. The occurrence of diseases should be combined with watering when topdressing, otherwise it is not only not easy to be absorbed by the plant, but also easy to cause fertilizer damage.

When topdressing, attention should be paid to the frequent application of less and many times, in the amount of fertilizer, take the principle of less at both ends and more in the middle, and try to be timely and reasonable. Generally, attention should be paid to the following topdressing, seedling fertilizer, in order to make the newly planted plants can immediately get sufficient nutrients, only for seedling growth. Generally, 15 kg of ammonium sulfate or 7-8 kg of urea, or 15 kg of ammonium bicarbonate should be applied per mu before watering the tree water or slow seedling water, and it should be watered in time after top dressing.

Fruit-promoting fertilizer, generally in the first ear of fruit has expanded, the second ear of fruit sitting, the purpose is to promote fruit expansion, conducive to the growth of stems and leaves, topdressing Yanwo water-soluble fertilizer 30-35 kg, topdressing after watering.

Top dressing in the full fruit period, after the first ear of fruit begins to be harvested, the fertilizer is good for fast-acting chemical fertilizer, when using water-saving drip irrigation equipment, it can be applied according to the mu of Yanwo water-soluble fertilizer, and applied to the field with water through fertilization and irrigation. Foliar top dressing, tomato leaves have the function of absorbing a variety of nutrients, so spraying various fertilizers on the tomato foliar surface not only absorbs the speed, but also can make up for the lack of soil fertilization, and the effect is also very good.

This method is especially suitable for the application of trace element fertilizer, and the application effect shows that the application of extra-root topdressing on tomato can not only significantly increase yield, but also promote early maturity, delay senescence, and prolong the growth period and harvest period. There are many types of root topdressing applications, which can be selected according to the needs of application, and trace elements such as Yanwo potassium dihydrogen phosphate and Yanwo calcium and magnesium fertilizer can be sprayed.