If celery wants to have a high yield, how should it be topdressed?

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, after the end of squatting, the principle of topdressing should be mastered a small number of times, topdressing once every 10 days, combined with watering, flushing fertilizer with water, each time per mu can be used 1000 kg of decomposing human feces, or 10 kg of urea and potassium sulfate. Top dressing 2 3 times.

<> when the leaves begin to grow, after a large number of lateral roots grow, the demand for fertilizer and water is also increasing, and the ** of fertilizer and water should be strengthened. Generally, water every 7 days or so to keep the soil moist. After chasing fertilizer every other water, it is best to alternate fertilizer and manure, base fertilizer or chicken manure and some sheep manure, but chicken manure is the main, in the fertilizer that is urea and phosphate fertilizer potassium fertilizer, after the application is transplanted, a watering should be carried out on the transplanting.

Celery as a member of the vegetable, but also the temperature and water fertilizer more concerned about the vegetables, celery planting is basically seedling technology, almost no live planting, after all, celery leaves are very small, and the permeability is also very poor, in the growth period of nitrogen fertilizer 2-3 times, generally choose ammonium bicarbonate, ammonium sulfate and other nitrogen fertilizers, can not choose urea, the most direct harm is celery bitter, and will lead to celery slow growth, cellulose increase, poor taste, quality decline. Before sowing, the topsoil of the seedling bed and fertilizer are fully mixed, raked finely and leveled. About 10 days after emergence, a fast-acting thin nitrogen fertilizer can be applied once, and a phosphorus-calcium fertilizer can be applied when 3 or 4 true leaves grow.

Half a month after the first topdressing, celery enters the vigorous growth period, the fine white roots are covered with the ground, the leaf color is bright green and shiny, and some bulges appear on the leaf surface. After about 15 days, the third top dressing is carried out, and foliar fertilizer can be appropriately sprayed at the 3-leaf stage of the seedlings to promote the growth of the aboveground part of the seedlings and increase their photosynthesis ability. In the later stage, nitrogen fertilizer and phosphorus and potassium fertilizer were supplemented according to the growth situation.

In order to promote the growth of celery after the seedlings are slowed down, combined with ploughing, on the basis of applying sufficient base fertilizer, before planting, apply 15 kg of ternary compound fertilizer per mu, evenly sprinkle the fertilizer on the furrow surface, mix the fertilizer with a hoe, and then rake it flat with an iron rake. After the celery squatting seedlings are finished, 10 kg of fertilization is applied per mu to the spring biological flush of the garden. Entering October, it is a period of fast growth of celery, and it is also a period of fertilizer, which should be combined with watering, and 10-15 kg of fertilization should be applied per mu in the spring of the garden.

15-20 days before harvest, in order to prevent premature senescence of the plant, increase the nutrients inside the plant, and enrich the petioles, you can spray 600 times of Yijia bacteria at one time.

1. Tests have proved that celery needs a lot of nitrogen fertilizer, but urea cannot be used as top dressing. Experimental data show that every 1000 kg of celery produced requires kilograms of pure nitrogen, phosphorus and potassium. Growers generally apply a large amount of fermented manure first, such as fermented poultry manure, etc., and supplement a bag of ternary compound fertilizer, which can basically meet the basic fertility of celery growth.

However, if you want celery to grow well, you have to apply nitrogen fertilizer 2-3 times during the growth period, generally choose ammonium bicarbonate, ammonium sulfate and other nitrogen fertilizers, can not choose urea, the most direct harm is that celery is bitter, and will lead to slow growth of celery, increase cellulose, poor taste, and decline in quality.

Celery top dressing can be carried out in accordance with the top dressing after planting, the top dressing of new leaves grows, and the top dressing of vigorous leaves is divided into three times, the seedlings will grow very slowly after planting, and so on after the new leaves grow, you can carry out a top dressing, at this time, celery will also need a lot of fertilizer, and farmers should spray Kunlun wind in time.

First of all, it should be fertilized at the seedling stage, and it should be watered every day, and the drainage work should be done well in the later stage, so that the celery can grow more abundantly.

Celery is a shallow-rooted plant, the ability to absorb nutrients is weak, after planting to survive, apply a light rotting acquaintance manure, in the middle and late stages to large water and fertilizer, so that the nutrients inside the plant increase.

In the vegetative growth stage of celery, more fertilizer is required at the seedling stage and later stage of growth, and the specific demand for various nutrients is characterized by nitrogen fertilizer, phosphate fertilizer in the early stage, and potassium fertilizer in the later stage. Nitrogen mainly affects the development of celery shoots, that is, the number of leaves and the length of petioles, nitrogen deficiency, plant aging, petioles are hollow, and nitrogen deficiency reduces celery yield in the later stage. However, if nitrogen is applied excessively during its vigorous growth period, lodging is likely to occur.

It can apply 4000-4500 kg of high-quality manure + 20-25 kg of urea + 10-15 kg of superphosphate + 10-15 kg of potassium sulfate per mu.

It is best to fertilize celery once a month, just use the most common compound fertilizer, and pay attention not to use too much.

Nitrogen mainly affects the development of the aboveground part, that is, the length of the petiole and the number of leaves. Phosphate fertilizer mainly affects the quality, and when there is too much, the petiole is slender and cellulose is more. Sufficient potassium fertilizer is conducive to the expansion of petioles, improving yield and quality.

Celery is a low- to medium-temperature crop, and when the temperature exceeds 26 degrees, it grows slowly and the disease increases. Heavy crops are severely diseased, and it can be seen that the results of planting celery at different times with 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, apply 200 300 grams of trace elements per mu, 200 grams of loose soil essence per mu, and 500 grams of microbial fertilizer.

Celery, a plant in the family Apiaceae. There are three kinds of water cress, dry celery and celery, which have similar functions, and the medicinal use is better than that of celery. The aroma of celery is stronger, said"Medicinal parsley"。

But coriander is not a species, celery is rich in protein, carbohydrates, carotene, B vitamins, calcium, phosphorus, iron, sodium, etc., at the same time, it has the effect of flattening the liver and clearing heat, dispelling wind and dampness, removing annoyance and reducing swelling, cooling blood and stopping bleeding, detoxifying and promoting lungs, strengthening stomach and blood, clearing the intestines and facilitating stool, moistening the lungs and relieving cough, lowering blood pressure, and strengthening the brain and sedation. Eating celery often, especially celery leaves, is very beneficial to the prevention of hypertension and arteriosclerosis, and has an auxiliary effect.

Fertilizer refers to a class of substances that provide one or more essential nutrients for plants, improve soil properties and improve soil fertility levels, and is one of the material bases of agricultural production.

It mainly includes ammonium phosphate fertilizers, macro-element water-soluble fertilizers, medium-element fertilizers, biological fertilizers, organic fertilizers, multi-dimensional field energy concentrated organic fertilizers, etc.

1. Apply sufficient base fertilizer.

The growth period of celery is long, and sufficient basal fertilizer should be applied before planting. The base fertilizer is mainly organic fertilizer, and before transplanting and planting seedlings, 4000-5000 kg of rotting farmhouse fertilizer can be applied per mu, and combined with land preparation and sprinkling into the soil. A small amount of chemical fertilizer, especially phosphorus and potassium fertilizer, should also be appropriately applied in the base fertilizer.

2. Timely top dressing.

When tomato seedlings are planted, a small amount of nitrogen fertilizer can be applied, and urea is generally 5-7 kg per mu. In the early stage of celery seedlings, because the seedlings grow slowly and the amount of fertilizer is small, there is generally no need to fertilize.

When celery begins to grow vigorously, nitrogen fertilizer can be applied again, generally 10-15 kg of urea per mu, and combined with irrigation. Celery grows more vigorously after this topdressing, and nitrogen fertilizer is applied again after 15-20 days of fertilization.

Now if you want to fertilize, first of all, before planting, you should choose the rotten chicken manure, and then apply some dry matter to supplement calcium fertilizer, actively apply some compound fertilizer during the growth of seedlings, and appropriately supplement some other fertilizers, and spray some other fertilizers in the process of growth, which is more helpful for celery follow-up methods such as wet base fertilizer, top dressing and glue sunlight.

Reasonable fertilization according to the growth of plants, you can use some farmhouse fertilizer, be sure to pay attention to the time of fertilization.

Celery as a stalk leaf vegetable, has the effect of lowering blood pressure, rich in nutrition, occupies a certain position in vegetables, in the planting process can be used to concentrate phosphorus and potassium essence of Demer Tianye, the effect is eight times that of monopotassium dihydrogen phosphate, the yield is significantly increased, and it can also be used with special foliar fertilizer for crops, which can be used throughout the crop growth period.

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.

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.

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, kilograms of borax can be applied per mu, or foliar spraying with borax solution.

Celery as a stalk leaf vegetable, has the effect of lowering blood pressure, rich in nutrition, occupies a certain position in vegetables, in the planting process can be used to concentrate phosphorus and potassium essence of Demer Tianye, the effect is eight times that of monopotassium dihydrogen phosphate, the yield is significantly increased, and it can also be used with special foliar fertilizer for crops, which can be used throughout the crop growth period.