How to sort tomato seedlings? Tomato planting should be divided into seedlings, how to divide tomato

Expert answers. Seedling division, also known as transplanting or transplanting, is the process of transferring tomato seedlings from the seeding bed to the nutrient bowl or other seedling site. The main function of seedling division is to expand the nutrient area, promote the occurrence of lateral roots, and eliminate weak seedlings, diseased seedlings and other inferior seedlings.

The suitable period for seedling division should be when there are two leaves and one heart, and later it will affect the differentiation of flower buds. The number of seedlings should not be too much, and it is generally transplanted only once. There are usually 3 ways to divide seedlings:

One is to directly transplant the ditch in the nutrient soil, draw the ditch according to the row spacing of 10 cm, and then place the seedlings according to the plant spacing of 10 cm, and fix the seedlings with a small amount of soil, water, and wait for the soil to seep down after the water seeps down. The second is to use nutrient bowls, grass bowls or paper bags to divide seedlings, which are generally 8 10 cm in diameter and about 8 10 cm in height. The small nutrient bowl will be defertilized in the later stage, and the seedlings are easy to grow.

Fill the container of nutrient bowl with seedling bed soil, then divide the seedlings and water them sufficiently. The third is to use nutrient soil clods to divide seedlings, that is, to use 10 cm thick nutrient soil, cut into 10 cm square clods, and properly water after seedlings.

Pay attention to the following points when dividing seedlings:

1) Choose windless and sunny weather; (2) It is necessary to use strong seedlings, not diseased seedlings and seedlings; (3) With the seedlings, with the seedlings, with the watering, after the seedlings as far as possible not to wilt; (4) When dividing seedlings, dig seedlings with a small shovel, and do not pull out seedlings directly by hand, and handle them gently when holding seedlings; (5) Water properly the day before seedling, so that the seedbed moisture is good.

Tip board. Tomato seedlings should be divided as little as possible to hurt the roots, especially in the high temperature season, it is not easy to slow down the seedlings when the roots are seriously damaged, and it is easy to induce viral diseases. It is best to have a nutrient area in place at one time, otherwise it is easy to defertilize in the later stage, and the second seedling division is not conducive to growth.

Seedling division is generally carried out 25 to 30 days after sowing, before flower bud differentiation. The flower bud differentiation of tomato is generally carried out at the time of the true leaf, so the seedling division must be completed before the true leaf, and it is generally carried out when the two leaves are in one heart. The number of seedlings is preferred.

There are usually three ways to divide seedlings: one is to directly transplant in the nutrient soil; the second is to use nutrient bowls, grass bowls or paper bags to divide seedlings; The third is to use nutrient soil clods to divide seedlings, that is, to use 10 cm thick nutrient soil and cut into 10 cm square clods.

This ensures the supply of nutrients and the permeability of the soil, which is conducive to root stretching. Sow seedlings on September 10 of the lunar calendar, the temperature is about 18 to 28 degrees, the first flower of seedling cultivation can be watched, planted in the greenhouse, less watering to survive after the fruit is set before watering big water. Before and after the rain of land cultivation, I thought about the number of days of the variety, cultivated strong seedlings, and pushed forward.

Spray the concentration of potassium dihydrogen phosphate and the concentration of urea solution respectively, spray once every 7 days, and spray 2-3 times in a row; Four taboos, tomato topdressing should not be carried out when the soil moisture is too high and the temperature is high at noon, so as not to cause flower drop, leaf drop, fruit drop and fertilizer damage. Because the drainage of this soil is very good, and when growing tomatoes, it is necessary to renovate the soil, because the soil aeration is also very good, and choosing a good soil is an important condition for high tomato yields.

Use sufficient base fertilizer, well-rotted organic fertilizer and farm manure can be, do not use too much fertilizer, apply an appropriate amount of nitrogen, phosphorus and potassium three-element compound fertilizer, and then add some boron, zinc, calcium, iron and other trace element fertilizers, we must pay attention to the balance of fertilization. In spring, the protected area was planted early-maturing, and from late February to early March, it was planted in cold tail and warm weather. The open-field mulching was planted around March 20 in the cold tail and warm weather. The planting density is early-maturing varieties, and the spacing between the rows is 50 30 cm, and the plants per mu are about 3000.

Tomato watering must be scientific, do not like waterlogging, although the waterlogged fruit grows a lot, but can not sit the fruit, rot more, so you must pay attention. And because of the west red habitat and the sun, the later management should be timely to beat the branches, remove the excess and useless side branches, so that the ventilation is good, so it is not recommended to water too much water, in addition to just planting for a while, you need to add some water, other times do not dry and do not water, if a little dry can be watered.

It is necessary to divide the seedlings manually. Plant the tomato seedlings separately so that the seedlings can be separated.

The seedlings must be completed when the two leaves are in one heart. The day before the seedlings were divided, the tomato seedlings were sterilized and disinfected with 2000 times of the liquid of the aqueous agent of the oxathia aqueous agent, or 600 times of the liquid of downy mildewcarb, and the trade name of Pulik. After the inferior seedlings are eliminated, they are transplanted separately according to the size of the seedlings.

The depth of planting seedlings should be 1-2 cm when the cotyledons are exposed to the ground, and the seedlings with long stems can be bent and planted into the seedbed.

If the tomato branch is too lush, prune its side branches while keeping the main trunk of the tomato, which is conducive to large fruit bearing in the future and ensures increased yield and income. Cultivation is divided into greenhouses, there are 120 days of late-maturing varieties, and about 100 early-maturing varieties, the Spring Festival is listed, the seedlings are sown on September 10 of the lunar calendar, the temperature is about 18 to 28 degrees, the first flowers can be seen by seedling cultivation, planted in the greenhouse, and do not water the fruit set before watering with less watering.

In the hometown of the Agricultural University, the planting of tomatoes is generally selected in April and August every year, before planting, the tomato seeds should be soaked in clean water for more than an hour, and then the water is filtered and then put into 50 degrees of warm water to continue to soak for about three or four hours, and the water is filtered for planting. Tomatoes can be said to be the most common type of vegetable planted by vegetable farmers, as long as they are grown, they are indispensable in the vegetable garden. There are many key points in tomato planting management, such as land selection, squatting seedlings and seedlings, water and temperature control, skillful topdressing, topping, dipping flowers, and cultivating and weeding.

When it comes to tomatoes, everyone may know that there are many delicious tomatoes, and I heard the elders say that eating raw tomatoes can alleviate wrinkles on the face, ** ruddy and shiny, as well as beauty effects, mash tomatoes and add some white flour to the face to have a whitening effect. Everyone should have eaten it, it is native to South America and widely cultivated in the north and south of China. The fruit of tomato is rich in nutrients and has a special flavor.

It can be eaten raw, cooked, processed in ketchup, juice or canned whole fruit. Moreover, scrambled eggs with tomatoes can be a must-have vegetable at home, so the prospect of tomato cultivation is self-evident.

After the seedlings are selected and the greenhouse is ready, they can be transplanted at a suitable temperature, and the tomato seedlings can be dipped in roots before transplanting. After transplanting, the seedlings can be irrigated with microbial agents to promote rooting and strong seedlings. Generally, after 7 days, the seedlings are watered, and the strong seedlings are selected and planted scientifically.

Tomato seedlings are particularly important, and high-quality strong seedlings must be selected. The standard high-quality strong seedlings are generally about 70 days old, the seedling height is 20cm, the stem thickness is above, the mesophyll looks hypertrophied, and the internode length is suitable and uniform.

There are many benefits that can improve the yield and quality of tomatoes, but also allow tomatoes to grow quickly, improve the taste of tomatoes, and make tomatoes grow big and red. It can promote the growth of lateral roots, but also the area of nutrients.

The main function of seedling division is to expand the nutrient area, promote the production of lateral roots and eliminate weak seedlings, diseased seedlings and other inferior seedlings. The suitable period of seedling division should be carried out when there are two leaves and one heart, and the later stage will affect the flower bud differentiation.

Tomato seedlings can be divided into some dominant varieties, and the dominant varieties can be cultivated, which can achieve high yield, facilitate regional centralized management, and facilitate the cultivation of some bad tomato seedlings.

Tomato seedling planting and management methods: sowing seedlings, transplanting, supplementing nutrients, providing water, etc.

1. Sow seeds and raise seedlings.

When planting tomatoes, they are sown and seedlings are raised. First, the seeds with full grains are selected, put them in warm water, removed after half an hour, soaked in clean water until the seeds are white, and then spread them in the nutrient-rich, deep soil.

2. Carry out transplanting.

When the tomato seedlings grow to a height of fifteen to twenty centimeters, they can be dug out with soil and transplanted in a sunny and ventilated field, and when planting, a soil hole is dug in the field, and then the tomato seedlings are placed in it, holding the seedlings with one hand, and covering the soil with the roots of the seedlings with the other hand and compacting them.

3. Supplement nutrients.

When tomatoes are in the seedling stage, the demand for nutrients is greater, at this time, it is necessary to water the rotten farmhouse liquid fertilizer to its roots to improve the growth rate of the plant, and after the tomatoes grow more leaves, nitrogen fertilizer and urea should be provided for them, so that the plant can grow better.

4. Provide moisture.

Tomatoes are suitable for growing in a humid environment, and should be watered every other week to keep the soil moist when breeding, and in the case of high summer temperatures, they should be watered every morning and evening, and sprayed with water mist on the leaves to improve the environmental humidity.

Difference Between Tomato Seedlings and Cherry Tomatoes Seedlings:

1. Plant appearance.

Tomato seedlings are usually taller and have sparse branches, while cherry tomatoes are comparatively shorter with more and more dense branches, making them more suitable for growing in communities and gardens.

2. Flowers and fruits.

Tomatoes and cherry tomatoes have similar flowers, both with small white flowers. But there is a great difference between their fruits, cherry tomatoes are usually smaller, more crisp in texture, sweeter and more tear-down, and juicy without astringency, with a delicious taste; Tomatoes, on the other hand, are larger, juicy fruits with a sour taste.

3. Growth conditions.

Tomato seedlings are more drought-tolerant and suitable for growing in warm and dry environments, while cherry tomatoes can grow in warm and humid environments, are more shade-tolerant and prefer high temperatures. Therefore, in the planting process, it is necessary to make different proportions and splits according to different growth conditions to ensure the health and smooth growth of plants.

The above content reference: Encyclopedia - urea.

The whole process of planting tomato seedlings is as follows:

1. Soil preparation and fertilization.

Tomatoes like to grow in deep soil, loose and fertile, strong water and fertility retention soil, if you want to grow it, you need to choose a planting plot, deep ploughing of the land, but also need to apply some rotting organic fertilizer and phosphorus and potassium fertilizer in the soil to improve the fertility of the soil.

2. Sow seeds and raise seedlings.

Soak the tomatoes in water for 6-8 hours, then put them in a warm environment of 25-28C to germinate for 2-3 days, and then sow them into the seedbed, keep the seedbed slightly moist, and do a good job of temperature control measures, soon the tomatoes can emerge and grow, and the seedlings can be planted after the growth is stable.

3. Planting method.

After raking the soil finely, open into a box of 80 cm wide and 16 24 cm high, and the box ditch is 33 cm wide, and then the tomato seedlings are planted into the soil according to the method of planting 2 rows per box, and the root system of the tomato seedlings should be Shu when planting, and the root water needs to be watered once after planting, so as to facilitate the survival and growth of tomatoes.

4. Maintenance management.

After the tomato is planted, it should be applied in time to promote a seedling fertilizer, you can use Ribery Yanwo water-soluble fertilizer to promote the growth of tomato stems and leaves, when managing tomatoes, it is necessary to prune, erect and tie vines in time after the first ear fruit set, and need to apply thin fertilizer frequently during the tomato growth period, and also pay attention to the prevention and control of the breeding of pests and diseases.

Tomato seedling cultivation method:

First, the tool raw materials.

Tomato seeds, seedling substrate, seedling tray, spray brigade ruler wheel pot.

Second, the method steps.

First of all, prepare the items you need to raise the seedlings.

Pour an appropriate amount of base fertilizer on the ground, put water on it, pinch it until it is restless, and the humidity reaches about 60% as well, not too much and not too little.

Next, put it on a plate, gently flat, don't fill it too much, just as flat as the plate.

Take a few seedling trays and press them, and after pressing, there will be some pits when the letter is opened.

Put the seeds in the pit of the seedling tray**, usually we can put 1-2 seeds, don't put too much.

After the seeds are put (be sure to check if there is any empty), pour in the base fertilizer and flatten it, water it again, put the seedling tray in a ventilated place, and wait for germination to transplant it, so that the tomato seeds can be cultivated.

Tomatoes are cultivated in this way, and in 10 days, the tomato seedlings will emerge 15 cm high.

Select seedlings with thick stems and 6 true leaves, dig a small pit after filling the pot with soil, transplant the tomato seedlings after putting in the bottom fertilizer, then water thoroughly, and put the pot in the shade for 2-3 days before putting it in a sunny place.

When the seedlings are 15cm, apply organic liquid nitrogen fertilizer, and pay attention to ventilation. Tomatoes are strong and need to remove the side buds properly. When flowering and fruiting, apply appropriate concentrations of phosphorus and potassium fertilizers, if there are too many fruits on the main stem, you can properly thin the fruits, and the tomatoes can be picked when they are all red.

How to grow tomato seedlings

1. Planting time.

Planting tomato seedlings needs to be carried out at a suitable time, it likes warmth, and the most suitable growth temperature is about 20, so according to the growth habits of the plant, the most suitable planting time is about 3-4 months every spring, otherwise the planting time is too early, and the plant will be difficult to grow healthily.

2. Soil preparation and fertilization.

Tomato seedlings are most suitable for planting in the deep soil layer, loose and fertile soil, strong water retention capacity and convenient drainage and irrigation land, before planting, the soil needs to be deeply turned, and add an appropriate amount of base fertilizer, after the rake is fine, the furrow width is 80 cm, the height is 16-24 cm, and the ditch width is 33 cm.

3. Planting method.

To prepare for the growth of robust tomato seedlings, in the afternoon of a sunny day, plant them into the soil according to the method of 50 to 30 cm spacing, pay attention to the need to plant the root system of the plant, and gently compact the soil after covering the soil, so that the plant is firmly fixed in the soil.

4. Maintenance management.

After the tomato seedlings are planted, they need to do a good job of maintenance and management, at this time, they need to be watered thoroughly to facilitate their root system and soil contact, and when the plant resumes growth, it is necessary to apply thin fertilizer to it regularly, and it is also necessary to prune and build a frame in time, so that the tomato seedlings can grow more vigorously.