What management is required after celery seedlings grow?

Celery is a stem-and-leaf vegetable rich in dietary fiber and a variety of minerals, likes a cold environment, usually sown in spring and autumn, the most suitable growth temperature for stunts is 20 25, generally can not exceed 25, too high a temperature will inhibit the growth of celery, too low a temperature will induce disease. In addition, celery seedlings also have strict requirements for field humidity, and excessive humidity will cause a variety of diseases such as incoming disease and quenching disease. Therefore, celery seedling management is very important and is the basis for the yield and quality of celery in the later stage.

So, how to manage the unearthed celery seedlings in order to cultivate strong seedlings and reduce the occurrence of pests and diseases?

Here are a series of characteristics of autumn celery growth. After the autumn onion celery seedlings are unearthed, because the buds and leaves have not yet fully opened, they cannot rely on photosynthesis to meet their own growth needs, and the nutrients of the seeds themselves have been exhausted during this period, with few roots, slow growth, and slow overall growth. Seedlings are intolerant to drought, high temperature, and strong direct light, and are prone to root disease, quenching cold, and saliva disease during this period.

Therefore, the management of this period should be managed in terms of pest control, seedling cultivation, and reasonable management of water and fertilizer.

The unearthed celery seedlings are susceptible to diseases such as roots, quenching diseases, and purchasing diseases. Ground root is mainly caused by the planter ground temperature is too low and caused by the disease, is a physiological disease, mainly from the control of the sowing temperature to take preventive measures, sprouts unearthed according to the climatic conditions to adjust the temperature reasonably, the temperature is too high when the plastic film and cover are peeled off in time, block the sun. When the temperature is suitable, remove the shading net and plastic film to ventilate the saplings and soak up the sun.

Quenching disease and storage disease are the two most common diseases at the seedling stage, and the harm to celery seedlings is also the greatest. The disease conditions are related to high temperature, high humidity, excessive water supply, and poor gout with high seedling density.

Pest control mainly comes from two aspects: physical prevention and chemical control. Physical placement: control the number of waterings, drain water in time after the rainy season, and find mulch and other mulches in time after seedlings are unearthed as leaves.

In hot weather, block the sun, reduce the temperature, the seedlings grow to about three, weeding in time, reduce the density, and increase the ventilation of the field. Chemoprevention**: Spraying liquid antiseptics or powders for oral diseases and quenching colds.

In addition, grass and wood can be sprayed in the field to prevent pests and diseases, and celery can be supplemented with potassium fertilizer to promote root and seedling growth.

In the celery seedling stage, water and fertilizer management is the key to cultivating strong seedlings. Celery is not watered too much, so it is rarely watered after sprinkling before sowing. After the buds are unearthed, they are watered several times according to the drought conditions in the field, and the general watering time is selected in the morning.

Because watering in the afternoon will increase the humidity of the plastic film. Especially because low temperatures can lower the ground temperature, which is not conducive to the growth of celery seedlings. The number of celery topdressing is carried out according to the growth of seedlings, and foliar fertilizer is generally sprayed appropriately in the three-leaf stage of seedlings, which can promote the growth of seedlings on the ground and improve photosynthesis.

Nitrogen fertilizer and phosphorus and potassium fertilizer were supplemented according to the later growth situation. The seedlings grow immature, and foliar fertilizer can be sprinkled again before planting to improve the growth consistency of celery seedlings. The management of celery at the germination stage is related to the yield and quality in the later stage, so special attention should be paid to the aspect of pests and diseases and water and fertilizer management.

After the celery seedlings grow, we must pay attention to the temperature and light, and shade them during the high temperature period, not more than 25 at most, of course, we must also pay attention to watering, and we must ensure that the soil is moist.

The roots of seedlings need more water, you can water them once a day in the morning, keep the soil moist, and apply some fertilizer to ensure that the nutrients are sufficient.

Celery seedlings are susceptible to diseases such as rooting, cataplexy and blight. Root is mainly a disease caused by low ground temperature during the sowing period, belongs to physiological diseases, to prevent and control mainly from the control of sowing temperature, seedlings out of the *, according to the climatic conditions to reasonably control the temperature, when the temperature is too high, remove the plastic film and covering, build a shade net, when the temperature is moderate, remove the shade net and plastic film to ventilate the seedbed, so that the seedlings shine into the sun.

In the green vegetable market, you can see enough celery all year round, urban and rural residents can eat fresh celery all year round, this is because the growth of celery has strong adaptability to environmental temperature, humidity and other conditions, that is, it is hot and hot, counting nine cold days, celery is a green leafy vegetable that people love, celery is a shallow root plant, weak absorption capacity, strict requirements for soil nutrients and water, suitable for growing in soil rich in organic matter, water and fertilizer retention, requiring more nitrogen.

The treatment of seeds is the key when planting, and next, the farmer's sister-in-law will teach you the skills of handling seeds when planting celery, so as to help you grow tall and strong celery. The best temperature for celery seed germination is 15-20 degrees, although the temperature is too low, although celery seeds can also germinate, but the germination rate will be reduced.

Celery is a shallow-rooted vegetable, drought tolerant and waterlogging, like cold and cool climate, so we also call celery locally dry celery, the celery planted by my family is a kind of self-retained, the celery planted by the plant is selected to be large, robust trees, and so on after the seeds are mature, the celery seeds germinate when the temperature is harsh, the temperature is too high and too low will affect the celery germination, the best temperature for celery seed germination is 15-20 degrees, the temperature is too low although celery seeds can also germinate, but the germination rate will be reduced.

In the summer, it is planted around June, and in the fall, it is planted in August, so the temperature at this time is no longer suitable for celery germination, so it is now past the best time to plant celery. Celery can be planted all year round, but the varieties planted in each season are different, choose the varieties corresponding to the season, celery will not only grow well but also have a relatively high yield. Now entering the autumn season, the celery varieties suitable for planting should be cold-tolerant, and the market demand should choose celery seeds, generally choose heat-tolerant varieties in summer and autumn, and choose cold-tolerant varieties in spring.

1.Low-temperature germinationWhen low-temperature germination, it is necessary to arrange the sowing time and carry out germination one week before sowing. First of all, put the celery seeds in clean water and soak them for 24 hours, if you want to go faster, you can also soak the seeds in warm water at sixty or seventy degrees, about 12 hours.

But the temperature of the water should not be too high so as not to burn the seeds.

2.The agent scabellin can promote seed germination, break dormancy, and can replace low temperature to treat celery seeds, thereby improving the emergence rate of seeds and shortening the germination time. It can be soaked in 100 200 milliliters of gibberellin for 24 hours, and then sown after fishing, which can promote the rapid germination of celery seeds.

The seeds should be soaked in water for about three hours, as this can promote the growth of celery, also increase the yield of celery, and also prevent celery pests and diseases, also prevent celery root damage, and also prevent celery seeds from freezing.

The seeds should be sterilized, and then the germination agent should be used to maintain the outside temperature at about 17 degrees, which can promote the germination rate.

Celery likes cold, more cold-tolerant, belongs to semi-cold-tolerant vegetables, seeds 4 begin to germinate, germination temperature 15 20, higher than 25 or lower than 15 germination rate to reduce or prolong germination time, but seedlings can tolerate -4 -5 low temperature, adult plants can tolerate -7 -8 low temperature, celery is divided into four kinds according to different planting times: one is spring celery. The sowing time of spring celery is in January in the north, and the seedling time is from January to March, and the planting time is from March to April, and it can be harvested around June.

In the Yangtze River Basin, when celery cultivation is suitable for sowing in March every year, the method of seedling transplanting is generally adopted, but according to the previous production experience, it will be more advantageous to live broadcast in plastic solar greenhouses, mainly because there is no slow seedling period and no root damage. Celery has a strong root system, full utilization of fertilizer and water, and strong absorption capacity.

<> celery in China is mostly cultivated in the open field, and it is most suitable for planting in autumn. In the north, seedlings are sown from June to early July, planted from August to early September, and harvested from October to November. The Yangtze River basin is sown from early July to early September and harvested from October to December.

Celery is a hardy vegetable that prefers a cool, moist environment. The most suitable temperature for celery is 15 to 20 degrees, more than 25 degrees, it will cause poor plant growth, especially in high temperature and drought, the growth is easily hindered, but it can tolerate low temperatures of 7 10 degrees.

The main stubble of plastic greenhouse planting is autumn celery, generally seedlings in mid to late July, planting in early to mid-September, harvested around New Year's Day, greenhouse celery can be planted a little later, **New Year's Day and Spring Festival market. 3.Autumn celery is sown in the north in early June and July, planted in early August and September, and harvested in November and October.

The Yangtze River basin is sown in early July and early September, and harvested in October and December.

The choice of soil. Celery prefers loose, fertile soil. Therefore, it is better to choose sandy loam soil with good air permeability. When ploughing the ground, it is necessary to apply enough fully decomposed organic fertilizer to ensure the nutrient needs of celery during the production process.

Before planting: 1Learn about celery's habits and the soil in which it is suitable.

2.Choose the right and good breeds. 3.

Master the corresponding planting and fertilization management techniques. Post-planting: 1

Pay attention to the temperature during the growing years. When the seedlings or adult plants of celery reach the vernalization standard, keep them in a low temperature environment below 10 degrees for 10-15 days. 2.

At the seedling stage, the temperature and humidity management of celery seedlings should be strengthened to cultivate strong and vigorous seedlings. 3.When celery is transplanted and planted, the amount of watering should be increased appropriately, the soil in the field should always be kept moist, and the amount of nitrogen fertilizer should be appropriately increased when topdressing.

4.On the basis of the normal management of water, temperature and fertilizer during the growth period of celery, the plant growth agent should be used flexibly and skillfully.

To plant celery in spring, the suitable temperature is about 30 degrees, and the temperature difference between day and night should not exceed 15 degrees. Species planting celery must pay attention to ventilation, so that the air in the greenhouse can be properly circulated, if the moisture is too large, it is easy to produce pests and diseases. Reasonable watering is required, and sunny weather must be chosen for autumn watering.

First of all, you should choose the kind of soft soil, and then be sure to prepare the rope in advance, and then tie it up at the right time to let it develop better, and then properly fertilize him after planting, and then prune some leaves at ordinary times.

Before planting, you must do a good job of market research, and you should also master the corresponding planting techniques, and you should also understand the situation of fertilizers. After planting, it should be watered and fertilized in time, and the soil should be loosened in time.

When planting, you must choose high-quality celery seeds, keep the ambient temperature at 15 20, and choose moist and evacuated soil to fertilize and water regularly after planting, so that celery can supplement sunlight, which is conducive to the growth of celery.

Be sure to choose the appropriate high-quality varieties, according to the different types of celery, the cultivation and management conditions it is planted are also different, celery in the seedling to prepare the ground to make a seedbed, and then soak the seeds, so that the seeds can germinate faster, celery likes fertile soil, so you need to do a good job in water and fertilizer management, proper fertilization, the combination of organic fertilizer and compound fertilizer, to water celery in time, to ensure that they have sufficient water, so that they can have enough sunlight for photosynthesis, control pests and diseases.

1. Temperature. Celery is a low-temperature tolerant vegetable, with a minimum ability to withstand -7 to -10 light. Celery is a low-light vegetable, which is conducive to the longitudinal growth of celery.

3. Fertilizer and water. Celery is a shallow-rooted, leaf-bearing vegetable, so its growth period is mainly nitrogen fertilizer, supplemented by phosphorus and potassium, and foliar spraying vegetables.

Be sure to clean up the stagnant water in time, and then be sure to soak the seeds with water before planting, and then put them in the refrigerator to germinate, be sure to strengthen ventilation management, and have proper light.

The temperature of celery growth and development is around 20, and it is very important to control the temperature through ventilation in the later stage. Celery has a long growing period, high yield, and a large amount of fertilizer, so it is best to apply a base fertilizer that decomposes organic fertilizer when planting. Throughout the growing season, water once every 3 to 5 days so that the ground is not exposed.

When the celery grows to about one, it should be watered once, rinsed with chemical fertilizer, a small amount many times, and then rinsed with high potassium fertilizer 2 3 times in the later stage, which is conducive to the coloring and strengthening of celery. In the growth period of celery, the leaves should be picked 2 or 3 times, the old leaves and diseased leaves at the bottom should be removed, the leaves with small weight at the bottom should be removed, and fungicides should be sprayed after picking the leaves to prevent diseases.

Soak the seeds in water for 12 24 hours, rinse them with water, grind off the skin, dry the surface moisture of the seeds, wrap them in a damp cloth and put them in the refrigerator. 5 After 15-16 hours of low temperature treatment, germinate indoors and keep it moist. When 50% of the seeds have germinated, they are planted.

Water is poured over the soles of the feet first, and the seeds are sown evenly to a depth of centimeters. The seedbed should be appropriately enlarged, the bottom water should be watered thoroughly at one time, the soil should not be too thick, and the seeds should not be exposed. After about 10 days of sowing, the seedlings will come out completely, remove the plastic film, and keep the soil moist.

Prevent and control virus diseases, aphids, leaf miners and other pests and diseases at any time.

It is susceptible to drought and lack of fertilizer, which affects growth and development, increases fiber and reduces quality. In case of drought, water every 2 to 3 days. Watering in the morning and evening to keep the soil moist, promote the vigorous growth of celery, reduce the ground temperature, and form a microclimate conducive to the growth of celery.

In case of heavy rain, it should be drained in time to prevent waterlogging, and in case of hot rain, it should be watered in time to cool down the cool well water, increase the oxygen content in the water, and prevent the hot rain from suffocating the plant roots. Timely top dressing should be carried out throughout the growing season. Top dressing should be based on the principle of dividing a small amount, every 10 15 days with urea or compound fertilizer 10 12 kg per mu, can be washed to 15 20 days before the harvest period to stop fertilizing.

Avoid using human manure, urine and other farm fertilizers during the celery growing season, otherwise it will cause heart rot or root rot. At the beginning of growth, tillage can be carried out once or twice. Cultivation should be shallow so as not to damage the roots or stems and leaves.

Combined with cultivating, pull the grass in time to avoid the grass pressing the seedlings.

In addition to the application of plantar fertilizer, it is also reasonable to top dressing according to the growth of celery and soil conditions. One week after planting, top dressing once every half month, 20 kg of urea and 15 kg of diammonium phosphate per mu were applied. Water every 4 days to keep the soil moist.

To facilitate storage, stop watering a week before harvesting. After 2 to 3 weeks of planting, celery enters the slow seedling stage, at which time the amount of watering should be reduced. About a month after the slow seedling stage, the growth rate slows down.

In order to avoid soil compaction, cultivation and weeding should be carried out to ensure that a small amount of water can penetrate into the soil, improve the permeability of the soil, and promote the root development of celery. Remove some grass so as not to affect the normal growth of celery, and leave some grass for celery shade.