How to manage the radish seedling stage? What to look out for?

Water immediately after sowing in autumn and winter to prevent pests and diseases and facilitate the emergence of seedlings. Water once in the ditch to promote the seedlings to emerge neatly. At the seedling stage of radish, the shallow layer of young roots requires less water, and the water holding capacity in the field should be 60%.

It is necessary to grasp the principle of "less watering, frequent watering" to prevent young roots from being burned by high temperature and reduce the occurrence of viral diseases. It is necessary to grasp the principle of "early seedlings, sparse seedlings, and late seedlings". Generally, the first thinning of seedlings can be carried out at the first true leaf, and the seedlings that are pests and diseases, long and thin, deformed, dwarf, dark green leaves, and dull can be pulled out.

Seedling time, the climate is hot and rainy, and weeds are easy to occur, so after each watering or rain, timely cultivation promotes root growth. Aphids and vegetable borers are very harmful in the seedling stage, and should be prevented and controlled in time, and the occurrence of viral diseases can be controlled by reducing the low temperature through repeated irrigation.

In the growth stage of radish seedlings, it is necessary to do a good job of thinning seedlings in time to avoid competing for nutrients with each other and causing thin growth. When the seedlings are fixed, pull out the diseased seedlings, weak seedlings, and insect seedlings, maintain strong seedlings, and at the same time pull out the weeds in the field, and spray the new high-lipid film 800 times in time to prevent bacterial infection, improve the ability to resist natural disasters, increase the intensity of photosynthesis, and protect the vigorous growth of seedlings. Do a good job in pest control.

We should do a good job of pest control. Common pests in the seedling stage of radish are flea beetles, leaf wasps, beetles, etc. Targeted pesticides can be selected according to the requirements of plant protection for prevention and control, and the new high-lipid film sprayed with 800 times the solution can improve the utilization rate of drug components and consolidate the control effect.

In the seedling stage, we must do a good job of checking the seedlings, often observe the growth of seedlings, ensure the normal growth of all seedlings, and improve their own yield. If weak or dead seedlings are found in planting, they should be pulled out in time, and then healthy seedlings with the same growth amount should be added. If the carrot seedlings are weak and more than half of the seedlings are dead, it means that the disease has appeared and the seedlings need to be destroyed in time.

In the seedling stage of carrots, it is necessary not only to do a good job of checking and replenishing seedlings, but also to determine seedlings in time to prevent seedlings from competing for nutrients and affecting growth. The planting density should be controlled according to the carrot variety and soil conditions, and the seedlings should be seedlings with two leaves, and then the seedlings with weak growth and poor pests and diseases should be pulled out in time. When there are 5 leaves, the seedling work should be carried out in batches, and the planting density should not be too thin or too dense.

Radish seedlings need to pay attention to the management of water, at this time do not need to apply too much fertilizer, but we must pay attention to the problem of watering, too much water will wash down the seedlings, so that the root system is damaged or rotten, watering too little water will slow down the growth, so to control this degree.

Radish seedlings should be done in a timely manner, seedlings should be carried out when 2 leaves, seedling spacing is about 2 cm, seedlings are set in 5 leaves combined with cultivating and weeding, seedling spacing is generally about 15 cm, it is best not to set seedlings at one time!

1. Seedlings and seedlings. At present, if radish wants to enter the stage of seedling and seedling determination, it should do a good job of seedling and seedling determination in time, so as not to compete with each other for nutrients and lead to thin growth. When thinning seedlings and setting seedlings, pull out diseased seedlings, weak seedlings, insect seedlings, retain strong seedlings, and pull out weeds in the field at the same time.

2. Do a good job of topdressing at the seedling stage. According to the growth of radish in each demonstration household, the topdressing work should be done in a targeted manner, and 8-10 kg of urea per mu should be applied.

3. Do a good job in pest control. At present, there is no disease occurrence, mainly should do a good job in insect pest control, common insect pests are jumping beetles, leaf bees, Qi mites, etc., the following agents can be used for prevention and control: jumping nails choose a da, jump nails sweep away and other prevention and control; Underground pests are controlled by phosphine and other pests; Leaf bees are controlled by Kung Fu, Besta and other agents.

When the radish grows to one leaf and one heart, it begins to sprout, and when it has three to four true leaves, it begins to set seedlings. Seedlings: Weak seedlings, double seedlings, deformed seedlings, yellow disease seedlings, etc. should be removed after the seedlings have just emerged, so that the seedlings are dense and uniform.

White radish can reach double cropping in a year, and it is most suitable to plant white radish in the week after autumn. In the absence of epidemic pests and diseases, seedlings should be seeded as soon as possible, seedlings should be thinned many times, seedlings should be fixed at the 6-leaf stage, and seedlings should be seedlings 2 or 3 times in general.

The seedlings of radish grow rapidly after being unearthed, and the seedlings should be in time, and the principle is that the seedlings are in the morning, the seedlings are divided into stages, and the seedlings are set late. These are all good methods, but they all need to be managed by themselves.

Radish seeds, it is better to choose new seeds of the year for sowing. The germination rate of new seeds is high, and the interval of more than one year is old seeds, and the germination rate of old seeds is too low to be selected. Radish seeds should choose high-quality seeds with good maturity, full grains, and high germination rate.

Varieties of radishes are selected and planted according to local consumption habits and uses. Fertilization and land preparation. Try to avoid continuous cropping with cruciferous vegetables, and clean up the previous crops.

Before sowing seeds and radish seeds, seed disinfection treatment is required to prevent diseases at the seedling stage.

To choose very high-quality seeds, the soil for planting must be very fertile, and the water must be fertilized, and the temperature at the time of planting should also be suitable, so as to ensure that the whole radish seedlings can be ensured; When planting, we must pay attention to applying base fertilizer in advance, watering in advance, and the temperature should be suitable when planting, and there should be a certain amount of sunshine.

Land preparation: Radish planting should be planted in a deep soil, rich in organic matter sandy loam soil, not clay or too sandy soil planting. Be careful not to have problems with chaff.

The amount of water used in the growth period of radish is relatively large, but the watering should be moderate and appropriate. When planting, it is necessary to water enough water to promote rapid germination, and during the small seedling period after germination, try to water as little as possible to maintain the moisture in the field, and the long leaf stage is very long. At the stage of growth and development of fleshy roots, it is generally necessary to water thoroughly, and at the end of the stage, it is necessary to water moderately to prevent radishes from appearing hollow.

Succulent roots should avoid urban waterlogging during the growth period. Flat furrow planting is suitable for the era of particularly low rainfall, and the mountainous area is okay. However, during periods or years when rainfall is more concentrated, radishes are very susceptible to soft rot.

Because it reasonably reduces the appearance of soft rot.

The best way to maintain the good seedling condition of the soil layer is to plant with sub-film in a high compartment. Although radish vegetables do not have high requirements for soil quality, it is very easy to plant, but you need to plant a large and high fertilizer production of radish, you really must choose good seeds, choose a good soil layered thick, sandy, strong soil organic matter area to plant it, when planting, you also need to put the bottom of the foot fertilizer, water the soil layer, moisten the soil layer is very easy to sprout and grow and develop, and then in July and August, there are a few wind and rain, storms and rains, planting radish must be covered with a shade net on the soil layer, to avoid sun exposure and storm erosion.

As a result, the excavated radish seedlings are very easy to fall and die, so planting radishes to select a good soil layer, seed seeds and grasp the climate is the core. Not only the radish planting process, but also all kinds of agricultural planting, seed is important for a good harvest. A good seed can have the practical effect of doing more with half the effort, and good seeds not only have a high total yield, abundant growth and development, but also have a strong resistance to diseases.

For example, if the fleshy roots of radish are buried shallowly, this species is not easy to produce deformed roots; Varieties with low water content and high density of fleshy roots of radish are not prone to root splitting.

Bifurcation occurs mainly due to nutrient overflow, which allows the nutrient-absorbing rhizome to grow and develop into underground storage stems. Most of this situation occurs at the stage of land resource selection. It may not be that deep tillage has not been carried out, or it may be that the basal fertilizer is not completely rotten or the deposition is uneven; It may also be that there are bricks and tiles in the farmland, which hinder the growth and development of the underground stems of the radish.

Fertilization: After replenishing the seedlings, we will carry out fertilization after the rain, generally using urea solution, and the distance between the roots of the radish should be less than 3cm when fertilizing to avoid burning the seedlings. If it is a sunny day, it is necessary to water or cultivate soil to bury organic fertilizer after fertilization.

Choose a deep soil layer, fertile and loose soil, easy drainage and irrigation sandy loam land block planting radish, break the rake flat, deep turn 26-40 cm, and then apply the bottom fertilizer, radish sowing time is from mid-February to early April every year, and mid-to-late July to early October, of which September is the best sowing time, after sowing appropriate soil covering and watering, seedlings and seedlings: radish after the appearance of true leaves and time seedlings, seedlings grow 6-7 true leaves can be set seedlings. Strengthen fertilizer and water management, timely use of drugs to prevent and control pests and diseases, and need to be cultivated once before the radish seedling stage is closed.

The first point is that the best way to achieve high yield is to pay attention to the soil for planting, the second point should pay attention to some corresponding systems of planting management, and the third point is to master some corresponding management skills.

Choose sandy loam land with deep soil, fertile soil, loose drainage and irrigation. Then it is necessary to loosen the soil and fertilize it. After the appearance of true leaves, the seedlings grow 6 or 7 true leaf seedlings, be careful not to get the seedlings, do not bend the seedlings.

Choose the right variety for planting, pay attention to watering, pay attention to fertilization, be sure to pay attention to the specific situation of the leaves, and deal with it reasonably.