The management of radish seedlings is very important, how to manage radish seedlings well?

If you want to have a high yield of radish, then you must manage the radish when it is still a radish seedling, otherwise it will be too late to think about it when it gradually matures, so how to manage the radish seedling in the process of growth?

Note that the watering of radish seedlings Under normal circumstances, the sowing time of radish is generally in autumn or winter, but in these two seasons, if the radish seedlings are put into the soil, do not feel that the sowing is completed at this timeBe sure to water immediately after the sowing is completed, so that it can play a role in controlling pests and diseases.

In addition, if you water it immediately after sowing, it is also more conducive to the emergence of radishes.

In addition to the first watering, when the radish seedlings emerge, that is, when the radish seedlings are young, at this time, because the roots are relatively shallow, it is said that not too much water is needed, so at this timeTry to keep the amount of watering at about 60%, don't water too much.

And in the meantimeThe principle of watering must be followed: watering sparingly, but watering frequently.

If it is in summer, because the weather is relatively hot, do not water it at noon when the weather is at its hottest, otherwise it will cause damage to the roots of radish seedlings.

Many people think that if the weeds are not very dense, then they can be ignored at this time, but in fact, as long as we see the weeds growing around, we should clean up in time.

In addition, it is necessary to prevent the growth of weeds, especially during the period when radish seedlings are young, if the weather is hot at this time and it rains frequently, then weeds are also very easy to grow. So say inEvery time after watering or after rain, it is necessary to carry out proper tillage.

As long as the control of pests and diseases involves the planting of vegetables, then it is inseparable from the prevention and control of pests and diseases, especially in the seedling period, because the development of roots is not very perfect, so the radish seedlings in this period are also very weak. Therefore, if you want to have a high yield of radish, the control of pests and diseases must be mentioned in your daily work.

You can try it when it's hotA small amount of irrigation many timesThis can effectively reduce the temperature in the soil, and control the temperature, then the probability of pests and diseases may be reduced accordingly, in short, the prevention work is greater than the first.

First of all, when planting, you must choose land with relatively fertile and wide soil, and when fertilizing, you must choose farmhouse fertilizer, and do not use fertilizer bought outside. It is also necessary to water more often, to prevent the occurrence of pests and diseases, and if there are small bugs, then be sure to spray insecticides.

Water immediately after planting to prevent some harm. Weeding should be done regularly. The distance between the seedlings is slightly larger.

This will give them a good ventilation. Fertilize regularly. When watering, be sure to control the degree and do not let the water be too much, which will rot the roots and seedlings.

We must thin the seedlings and set the seedlings, and we must do a good job of topdressing, use more urea, and we must do a good job of insect control, and we must water in time according to the weather.

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.

Water replenishment: The water holding capacity of the soil is controlled at about 60% at the seedling stage of radishes. Scientific Seedlings:

In the first true leaf, the seedlings were thinned according to the plant spacing of 5 cm, and the plant spacing of the last seedling was 25 cm. Fertilization management: timely application of thin human feces and urine for radish seedlings.

Pest control: Streptomycin sulfate and imidacloprid control.

1. Replenish water

After the radish emerges, it is necessary to sprinkle water in the field in a timely manner, which is conducive to the emergence of seedlings neatly, in the whole seedling period of radish, the water holding capacity of the soil is best controlled at about 60%, master the watering principle of less watering and frequent watering, and find that the soil surface can be replenished when it is white, and can not be watered at noon high temperature.

2. Scientific seedlings

The principle of radish seedlings is early seedlings, sparse seedlings, late seedlings, generally the first seedlings are carried out at the time of the first true leaf, and the seedlings with pest infection, weak growth, deformity and dark green leaf color are removed, and the seedlings are left every 5 cm or so, and the plant spacing of the last seedling is 25 cm.

3. Fertilization management

When radish seedlings grow 2 true leaves, it is necessary to apply thin human manure and urine in time, the time of the second topdressing is after cultivating and weeding, the fertilization concentration is 20%, and so on the radish to the big belly period, apply 5 kg of superphosphate and potassium sulfate per mu, and supplement 30% of the dilute manure water.

4. Control pests and diseases

After the radish emerges, it may suffer from the threat of black rot, virus disease, aphids, cabbage insects and other pests and diseases, the disease can be treated with streptomycin sulfate, and the pests are sprayed with imidacloprid and anti-Taibao emulsifiable concentrate, and the drug is mostly applied after 4 pm on a sunny day.

Divided seedlings: Generally, seedlings need to be spaced at least 2-3 times in production, which cannot be completed at one time. Retain strong seedlings:

Keep the strong Huaizhi radish seedlings, and pull out the weak, infected with pests and diseases, and wilted seedlings. The principle of seedlings: maintain the principle of early seedlings, divided seedlings, and late seedlings.

Precautions: It is most suitable for seedlings after 4 o'clock on a sunny day.

1. Divided seedlings

Radish seedlings are not completed at one time, generally the production of at least 2-3 seedlings, the first seedling Nomei carrying time in the first true leaf, the second seedling in the 2-3 true leaves, the third seedling for the seedlings to grow 5-6 true leaves.

2. Keep strong seedlings

When the radish seedlings are set and the seedlings are fixed, the strong seedlings are retained, and the seedlings that grow weakly, are infected with pests and diseases, and are yellow and wilted, under normal circumstances, large and medium-sized varieties can only leave 4000-5000 plants per mu, while small radish varieties can leave about 8000 plants per mu.

3. The principle of seedlings

The principle of radish seedlings is early seedlings, sub-seedlings, late seedlings, after the end of radish sowing, if the soil fertility is relatively sufficient, the temperature is suitable, and the seedlings grow rapidly after being unearthed, at this time it is necessary to carry out the seedlings in time, and remove the deformed seedlings in time.

4. Precautions

When the radish seedlings are thinned, the first seedling and the second seedling should be separated by about 7-10 days, pay attention to the uprooting of one plant at a time, can not pull out all of them, and the seedling time is best selected in the evening on a cloudy or sunny day, after 4 o'clock is the most appropriate.

White radish is a very common vegetable, can be made into a variety of dishes, is very popular in the market, of course, the cultivation of white radish also needs to spend a lot of thought, in the process of planting, to do the following four aspects. <>

First of all, the appropriate amount of watering, the water required for the growth of white radish, each stage is different, when germinating, the amount of watering should be more, to keep the soil moist at all times, the general soil wetness is more than 80%, in order to make the white radish better seedlings. In the seedling stage, adhering to the principle of less watering and frequent watering, the moisture content in the soil only needs to be about 50%. When the white radish enters the growing season, it can be increased moderately, returning to the initial 80% water content, in short, no matter what the period, watering is very important.

Secondly, we must do a good job of thinning seedlings, this step is to go through no matter what crops are planted, and the seedlings should be planted as soon as possible. Among the many seedlings, select the vigorous growth and bright color to transplant, and after transplanting, it is necessary to carry out pest control and nutritional supplementation. The second is weeding, the white radish will inevitably be surrounded by weeds in the process of growth, at this time it is necessary to carry out weeding work, it is best to manually weed, which is safe and can ensure the growth of seedlings.

The last thing to pay attention to is the protection of pests and diseases. In fact, white radish is a kind of crop with more tenacious vitality among many crops, under normal circumstances, it is rarely attacked by insect pests, and it is unlikely to have rotten roots and leaves, so in most cases, the soil is generally cleaned in advance, and it is no longer needed in the planting process. However, if serious pests are encountered in the planting process, it is necessary to select appropriate pesticides and spray them according to a certain dose, which can also effectively control pests.

To sum up, the field management of white radish is not simple, it is not complicated, as long as it is planted carefully, the harvest can be full.

Fertilizer and watering should be applied regularly. Keeping the soil moist and nutritious will make the radish grow large and straight, and a good harvest can be achieved.

Select the soil layer thick and fertile soil, ridge after fertilization in the land, and then carry out sowing, after the emergence of seedlings, seedlings, seedlings should be properly topdressed and watered, and pests and diseases should be controlled.

First of all, when planting, you must choose a land with relatively fertile and wide soil. In the process of fertilization, you must choose farmhouse fertilizer, do not use fertilizer bought outside. It is also necessary to water more often, and it is also necessary to prevent the occurrence of pests and diseases, and if there are small bugs, then be sure to spray insecticides.

In this way, the white radish can be planted.

First, the suitable growth temperature of radish stems and leaves is 15 20, and it can grow normally when it is lower than this temperature for a short time, but it will stop growing when it is low temperature for a long time. The fleshy root has a high requirement for growth temperature, and when it is lower than 6, the growth is slow. When frost occurs, when the external ambient temperature is lower than 0, the fleshy roots of radish will be frost damaged.

Second, winter and spring radishes are generally sown from October to mid-November, and harvested in February and March. If you choose a variety with poor cold tolerance, it is easy to have premature sprouts in a low temperature environment, which affects the expansion of fleshy roots, and the yield and quality decrease. The open fields in the north are not suitable for overwintering radish planting, and the entire growing season will be affected by frost.

When there is frost, the fleshy roots of radish face low temperature, consume a lot of nutrients, the cells freeze and lose water, and die, affecting the yield, and the frozen part is inedible. So, in the face of frost, how should radishes be managed? When low temperature comes, the radish that has matured should be harvested and stored in time, and the growing radish should be warmed in time to prevent frost damage.

1 Watering in moderation.

In the process of growing turnips, a lot of water is indeed needed. But if you water too much, it will cause the radish leaves to grow vigorously. If the radish field is too dry, it is enough to water a little water, as long as the ears are enough to maintain the needs of the radish growth.

In general, the soil in the turnip field should be kept moist, not too much watered, and not too little.

2. Fertilizer should be appropriate.

To plant radish, you should use less nitrogen fertilizer and more potassium fertilizer. Too much nitrogen fertilizer on the fertilizer will cause the radish leaves to grow vigorously. Applying potash fertilizer will make the radish grow bigger.

In the early stage of radish growth, you can add more nitrogen fertilizer. But when the radish starts to develop, it is best not to apply nitrogen fertilizer or to use a little less nitrogen fertilizer. A little more potassium fertilizer can make the radish grow bigger, and it will not cause the radish leaves to grow vigorously.

3 Prune the leaves appropriately.

Many farmers believe that pruning radish leaves is to break off all the radish leaves. They think that by doing so, all the nutrients will be supplied to the growth of the turnips, but in fact it is not wise to do so. Radish leaves do consume nutrients, but the nutrients produced by radish leaves through photosynthesis will also be transported like roots, and if you blindly break the radish leaves, it will make the radish grow very small.

Field management of turnips is different from carrots, in addition to having abundant base fertilizer, top dressing should also be carried out as early as possible. When the radish seedlings have grown 2 true leaves, they need to apply fast-acting nitrogen fertilizer once. At this time, the seedlings are weak, and care should be taken not to cause trauma to the seedlings when topdressing.

If the fertility in the field is insufficient, it can be topdressed again after the seedlings are set. Pay attention to the amount of top dressing, so as not to cause the leaf cluster to grow and affect the expansion of fleshy roots in the future. Radish needs a lot of water in the process of growth, so the soil should be kept moist in the early stage, watered frequently with less water, and at the same time cooperate with hoeing and squatting seedlings, which is conducive to deep rooting of the root system.

During the sporing period of fleshy roots, the soil moisture should be maintained at about 80%. Be careful not to let the soil dry out, otherwise hollow radishes will appear.