Celery fertilization should be reasonable, and on what basis is the fertilizer determined?

So what is the best fertilizer for growing celery in sandy soil, from its poor fertilizer and water retention capacity, high-quality farmhouse fertilizer, horse manure, cow manure, pig manure, sheep manure, chicken manure, and various oil residue fertilizers after oil extraction are the best, these high-quality fertilizers are released slowly, we have a large celery production area here, and most celery is planted in heavy stubble. When planting sandy soil, it is best to use fertilizer, base fertilizer, and organic fertilizer, and a small amount of microbial fertilizer and appropriate medium and trace elements. Organic fertilizer can change the physical and chemical properties of sandy soil, celery is a transplanted crop, first of all, in the fertilizer is the most like farmhouse fertilizer as the base fertilizer, in my rural hometown in Gansu, the vegetable farmers who grow celery will first carry out a whole before transplanting celery, of course, chicken manure will be applied as the base fertilizer.

When fertilizing, apply 1.3 square meters of rotted and fermented organic fertilizer per mu, choose 20 30 kg per mu of compound fertilizer with low nitrogen, medium phosphorus and high potassium, apply 200 300 grams of trace elements per mu, 200 grams of loose soil essence per mu, and 500 grams of microbial fertilizer. When topdressing, you can choose low nitrogen, and it is best to use organic fertilizer for planting vegetables and fruits, which is green and healthy! The seed station has organic fertilizer for growing vegetables for sale!

This is because fruit trees grown on sandy soils are prone to lack of boron, zinc, magnesium and other elements, which can also cause loss or local poisoning when applied alone. Celery has strict soil requirements, and it is suitable for loam or clay loam soil cultivation and planting. Sandy soil and sandy loam soil are prone to lack of water and fertilizer, resulting in hollowing of petioles.

When preparing the land, it is necessary to intensively cultivate and rake finely, prepare the land finely, and remove debris. Combined with land preparation and fertilization for furrowing, after the end of squatting, top dressing should master the principle of a small number of times, top dressing every 10 days, combined with watering, flushing fertilizer with water, each mu can be used 1000 kg of decomposing human feces, or 10 kg of urea and potassium sulfate. Top dressing 2 3 times.

Celery has a shallow root system and weak fertility absorption, which is also this growth characteristic, so it is necessary to apply less and more frequently when fertilizing celery. Because once the amount of fertilizer is too large, it will cause the phenomenon of celery burning roots, and too much fertilizer can not be absorbed and utilized by celery

1. Appropriate application of more nitrogen fertilizer: celery needs a large amount of nitrogen fertilizer during the whole growth period, and the top dressing of celery should be mainly ammonium bicarbonate, so that a small amount of time is done many times, and it is generally necessary to top dressing 2 3 times. However, it should be noted that celery should not be top-applied with urea, because after celery top-dressing urea, the growth will be slowed down, the cellulose will increase, the plant is easy to age, the quality is reduced, and it has a bitter taste when eating, so celery should not be top-applied urea during the whole growth period.

2. Top application of organic fertilizer: Top application of organic fertilizer that has been brewed and fully decomposed to celery can improve the quality of celery. Note that organic fertilizer that is not well decomposed should not be applied as top dressing, so as not to cause burning and rotting roots.

After the application of organic fertilizer, the plant stalks are tender and thick, the fiber is reduced, and the quality and yield are greatly improved.

Depending on the growth and specific conditions, as well as the characteristics of celery, the right fertilizer is determined. Generally, when fertilizing celery, nitrogen fertilizer must be the mainstay. However, potash and phosphate fertilizers should also be applied appropriately.

At this time, it can be based on the growth and development of celery, and each time the top dressing should be grasped about three times, and more nitrogen fertilizer must be applied during the growth period.

According to the growth of celery, if the celery grows relatively small, it means that there is a lack of fertilizer, and more fertilizer should be applied.

Fertilize the celery as soon as the seeds are sown, and when the celery grows ten centimeters tall, fertilize again, and sprinkle a little fertilizer after each watering.

You can water some fertilizer on celery when it is just planted, then some fertilizer and water when it grows seedlings, and then fertilizer again when it bears fruit.

In fact, you can apply some compound fertilizer to this celery every once in a while, and remember to add more water to make celery grow well.

After planting, the seedling stage is generally not topdressed. After slow seedling, the plant grows very slowly. In order to promote the growth of new roots and new leaves, seedling fertilizer can be applied at one time, and urea 5 7 kg per mu can be applied.

During the vigorous growth period, the leaf area expands rapidly, the petiole elongates rapidly, the parenchyma in the petiole proliferates, and celery grows vigorously, which is the period when the nutrient efficiency is the largest. At this time, it is necessary to top dressing several times, mainly fast-acting nitrogen fertilizer. To make celery high-yielding, clever fertilization is the key to planting celery for the first time combined with irrigation, applying urea 6 to 8 kg per mu.

After 10 to 15 days, urea 5 to 7 kg per mu can be applied. In addition to nitrogen fertilizer, potassium fertilizer should be added, 5 kg of potassium sulfate per mu should be applied each time, watered thoroughly, so that the heart leaves are tender and juicy, and organic matter can be fully transported and accumulated.

If heart rot is found in celery during growth, calcium nitrate can be sprayed on the leaves. Foliar spray of boron fertilizer can avoid stem cracking to a certain extent, and 40 75 kg of borax or boric acid solution per mu is applied each time. Fertilization MythsSome farmers often think that celery mainly has leaves, so it is necessary to apply more urea or high-nitrogen fertilizers to make it grow healthily.

In fact, this is not entirely true, because if there is too much urea, the growth of celery will not only slow down, but also increase fiber, the plant will be prone to aging, and the quality will be reduced. There will be a bitter taste when eating, and the taste will have a certain effect. Major farmers have noticed that if the use of phosphorus, potassium and calcium fertilizers is neglected, it is easy to cause celery to be hollow.

How to increase celery yield? What are some tips for celery fertilization? Fertilization method When planting celery with basal fertilizer, it is best to apply 400 kg of well-rotted chicken manure as basal fertilizer, and then add 20 kg of balanced fertilizer, that is, three kinds of 15 balanced fertilizer.

This can supplement the content of nitrogen, phosphorus and potassium, and organic fertilizer can improve the quality of celery. The stems of the plant are tender and strong, and the cellulose is reduced. Do not apply organic fertilizer that is not completely decomposed to avoid root rot.

Then, on top of the above, 15 kg of calcium nitrate is added. Supplementing an appropriate amount of calcium fertilizer can avoid black heart disease and heart rot in the late growth stage of celery. In addition, applying about kilograms of borax per mu can also prevent celery from hollowing and breaking roots.

After the celery is planted to survive, it is lightly applied to the manure of the ripe manure, and then topdressing every 10-15 days. In the middle and late stages, a large amount of water and fertilization should be applied to increase the internal nutrients of the plant, promote the vigorous growth of stems and leaves, and enrich the petioles to prevent hollowing, so as to facilitate high quality and high yield. A small amount of chemical fertilizer should be added to the well-rotted manure water, and 3-4 kg of urea and 5 kg of potassium fertilizer should be applied once per mu.

When fertilizing, be careful not to pour from the heart leaves. In addition, in the middle and early stages of plant quality, top dressing is carried out 2-3 times to supplement soil nutrients. Calcium chloride solution and borax solution are sprayed respectively to prevent diseases such as black heart disease and petiole cracking.

Root topdressing is best carried out on cloudy or sunny days, when the dew is not dry in the morning or when the temperature is slightly lower in the evening, which is conducive to the absorption of fertilizer by the leaves. 20-30 days before the harvest period, 920 can be sprayed 1-2 times at a concentration of 20-50 ppm, which can make celery quality tender and increase yield.

Fertilize before planting celery, apply fertilizer once when celery grows to about 10 cm, and then apply fertilizer once when it grows to about 30 cm, the growth cycle of celery is particularly long, and you must pay attention to fertilization.

Seedling fertilization skills, celery in the seedling period fertilizer needs relatively little, but in the seedling period due to the long growth cycle, generally more than 2 months, so per mu (667 square) use rotten chicken manure 1000 kg, 100 kg of superphosphate, 10 kg of potassium sulfate, because the nitrogen content of chicken manure is higher, you can no longer need to add nitrogen fertilizer separately.

1. Celery seedbed fertilizer celery seedling period is longer, and seedling transplanting is mostly used. Celery seedbed should be selected fertile and loose soil, and 30 40 kg of rotting organic fertilizer should be applied per 10 square meters, and the soil should be fully mixed. Nutrient soil can also be artificially prepared for seedlings, generally with 60% of vegetable garden soil and 40% of fully decomposed manure to prepare nutrient soil, which can achieve the purpose of cultivating strong seedlings.

Second, celery-based fertilizer celery should choose a plot with deep soil, fertile, good ventilation, and convenient drainage and irrigation, and apply 6 8 cubic meters of well-rotted high-quality farmhouse fertilizer per mu. The plough is deep and raked thoroughly, and the leveling is made into a furrow. Before sowing, 50 kg of three-element compound fertilizer and 15 kg of urea were sprinkled on the surface of the furrow, and 1 2 kg of borax per mu was applied in boron-deficient areas, and about 20 cm were deeply cultivated.

1. Nitrogen fertilizer. Celery should be fertilized with more nitrogen fertilizer, but urea should not be topdressed. Celery requires a lot of nitrogen fertilizer throughout the growing period, and top dressing should be dominated by ammonium bicarbonate.

Do a small amount many times, generally need to top dressing 2-3 times. However, it should be noted that celery should not be top-applied with urea, because the growth of celery is slow, the cellulose increases, the plant is easy to age, the quality is reduced, and it has a bitter taste when eaten.

2. Organic fertilizer. Top application of organic fertilizer can improve the quality of celery. Applying organic fertilizer to poultry such as chickens and ducks, celery plants are tender and thick, the fiber is reduced, and the quality and yield are greatly improved. However, the organic fertilizer of the farmhouse that is not well rotted should not be applied as top dressing, so as not to cause burning and rotting roots.

3. Micro-fertilizer. Supplemental application of micro-fertilizer can prevent physiological diseases of celery. Calcium deficiency will cause celery "heartburn", and boron deficiency will cause celery hollowing, petiole cracking and other physiological diseases.

Foliar sprays of calcium chloride or calcium nitrate in water can prevent celery "heartburn". In order to prevent celery hollow and petiole cracking, borax can be applied basally, or foliar spray with boric acid solution.

Organic fertilizers, chemical fertilizers, trace elements and microbial fertilizers, etc. For celery fertilization, you can choose the appropriate fertilizer variety according to the soil texture and the number of years the plot has been planted with vegetables, and choose the appropriate fertilizer variety according to the actual situation of the Qingjia plot. In the process of growing celery, we found that celery is a low-temperature crop, which grows slowly and increases disease when the temperature exceeds 26 degrees.

Heavy crops are severely diseased, and the results of planting celery at different times and applying the same fertilizer can be very different. It is recommended that you consider agricultural control methods, such as adopting a crop rotation method of more than three years, or choosing the crop stubble of the previous year's grass family as a celery planting plot, etc.

When fertilizing, apply 1.3 square meters of rotted and fermented organic fertilizer per mu, choose 20 30 kg per mu of compound fertilizer with low nitrogen, medium phosphorus and high potassium, 200 300 grams of trace element fiber per mu, 200 grams per mu of loose soil essence, and 500 grams of microbial fertilizer. When topdressing, you can choose low nitrogen, low phosphorus, high potassium flush fertilization. Foliar sprays of potassium dihydrogen phosphate and trace elements, etc.

a) Seedling stage. Celery can be seeded or transplanted. Due to the difficulty of seed germination and emergence, the seedling growth is slow, the seedling period is long, and the seedling transplanting is mostly used.

The nursery ground should be turned deep and baked and white. Sprinkle about 25 kg of lime per 100 square meters of seedbed, 30 40 kg of rotting organic fertilizer, and 20 25 kg of compound fertilizer. Then dig 15 cm of shallow soil, mix the fertilizer with the soil thoroughly, and sow the seeds after the rake is finely leveled.

After the emergence of seedlings, according to the weather and seedling growth in time, generally once every 2 3 days, each time must be watered thoroughly, in order to facilitate the growth of roots. About 10 days after emergence, chase urea once. When 3 or 4 true leaves grow, chase the superphosphate solution once, and set the value when the seedling height is 6 10 cm.

2) Before and after colonization. The planting land is about 30 centimeters deep, baked and white, and 40 60 kilograms of lime are removed from each acre of vegetable field, and high furrows are made. Then 3000 kg of decomposed organic fertilizer, 1000 2000 kg of garbage coal ash, 100 kg of compound fertilizer, and 100 kg of borax were applied to the soil as base fertilizer after disinfection and accumulation.

Shake the fertilizer and soil evenly, rake the flat furrow surface, and open a shallow ditch for planting. After the seedlings survive, they began to top dress, once every 4 10 days, mainly with fast-acting nitrogen fertilizer, and the concentration was from low to high. By the time the leaves grow hypertrophied, celery grows luxuriantly.

It is the period of maximum efficiency of nutrients, and more fertilizer and water are needed. In addition to nitrogen fertilizer, it is also necessary to combine potassium fertilizer to make the heart leaves tender and juicy, and the organic matter is fully transported and accumulated. If heart rot is found, foliar sprays are applied with calcium nitrate or calcium chloride.

1. Bottom fertilizer: celery needs a lot of nutrients when growing, if you want celery to grow vigorously, you must apply the bottom fertilizer in the celery field, when choosing the bottom fertilizer, you can apply completely rotted farmhouse fertilizer to meet the needs of each stage of the celery growth cycle, and then you need to apply fertilizer according to the growth needs of celery in the seedling stage.

2. Seedling fertilization: Compound fertilizer can be selected at the seedling stage of celery, supplemented with nitrogen, phosphorus and potassium fertilizer, and nitrogen fertilizer will increase the length and number of leaves of the petiole applied to celery. If you want celery to taste good, you need to apply phosphate fertilizer, which will increase the cellulose content in the celery petioles.

Applying potassium fertilizer to celery can promote the expansion of celery petioles, improve yield and quality, and also quickly accelerate the growth rate of celery.

3. Top dressing during the growth period: the growth stage of celery, due to the rapid growth and short time, requires a lot of water and fertilizer, which needs to supplement the fertility of celery in different periods to promote the growth of celery.

It should be noted that celery should not be top-applied with urea, because the growth of celery is slow after top-dressing urea, the cellulose increases, the plant is easy to age, the quality is reduced, and it will have a bitter taste when eating.

In addition, celery belongs to the shallow root system, weaker crops, according to the characteristics of celery, in the process of celery fertilization to follow the principle of less fertilization and frequent fertilization, to avoid excessive one-time fertilizer amount to cause root burning, there is to avoid not having time to be absorbed by the celery root system of nutrients, once infiltrated into the deep layer of the soil, resulting in soil compaction, after it is difficult to be absorbed by the root system.