Timing and rules for feeding cucumbers with urea, methods of applying fertilizer

Feeding efficiency

Mineral nitrogen fertilizer, obtained by the chemical industry as a result of the synthesis of carbon dioxide and ammonia, contains 46% of nitrogen available to plants, without which their full growth and development is impossible.

Main indications for use:

• acceleration of green mass growth;
• nitrogen replenishment;
• increasing plant immunity;
• protection from pests and diseases.

In pest control, urea is a good analogue of expensive insecticidal spectrum drugs and successfully fights copperheads, flower beetles, aphids and weevils.

How to determine nitrogen deficiency

Spraying cucumbers with urea is useful when they lack nitrogen. It’s easy to get ahead of the signs of a lack of this chemical element:

• the growth of the crop and side shoots stops;
• the foliage turns yellow, and in some cases also the stems;
• during the active stage of the growing season, leaves suddenly fall off;
• neither foliage nor cucumber ovaries are formed in a timely manner;
• The yield of cucumbers is significantly reduced;
• The grown fruits are pale in color.

The above symptoms are indications for the use of urea-based solutions for spraying and watering cucumbers.

Folk recipes for foliar feeding of cucumbers

Folk remedies are good during the harvest season. Spraying with chemical fertilizers at this time is not recommended, but additional “feeding” for fruit-bearing plants will be very useful. How to feed cucumbers during fruiting?

Herbal infusion

An ordinary fermented infusion of nettles, grass clippings or weeds is suitable not only for watering, but also for sprinkling on the leaves. Just like aerated compost tea (ACT). Spraying with green fertilizer has a double effect: it saturates cucumber shoots with nutrients and reduces the risk of powdery mildew infection.

You will learn all the intricacies of preparing liquid grass fertilizer by reading the article Organic fertilizers from weeds. Find detailed information about AKCH HERE.

Infusion or decoction of ash

It is not for nothing that wood ash is considered the best organic and safe fertilizer. It contains a whole complex of micro- and macroelements, with the exception of nitrogen. Spraying ash infusion (decoction) over the leaves and stems of cucumber during fruiting is a win-win option.

To prepare liquid fertilizer in the form of an infusion, we will need a lot of ash - a third of a bucket. Add hot water to the bucket and leave for 48 hours. Then we filter. We spray the cucumber bed with the infusion, and send the sediment to the compost.

The second method of preparing ash fertilizer will require much less raw materials, but more effort. Take 300 grams of ash, pour any amount of boiling water and continue boiling for another 20-30 minutes. Strain and dilute with 10 liters of cold water.

By the way, the “extract” from the ash can be mixed with nettle infusion. Nettle fertilizer contains a lot of nitrogen, and ash fertilizer contains all the other elements. It turns out to be a complete super-feeding!

Onion peel

All followers of organic farming are very fond of onion skins. Because spraying with an infusion or decoction of onion peels kills two birds with one stone.

Firstly, it supplies plants with nutrients. Onion scales are rich in biologically active, organic and mineral substances, such as phosphorus and potassium.

And secondly, it helps cucumbers protect themselves from diseases. Onion peel is widely known as a tonic, immune-stimulating and anti-inflammatory agent.

Recipe for foliar feeding from onion peels : pour a half-liter jar of onion peels into a large saucepan or bucket and fill with 5 liters of water. Bring to a boil, and then leave covered for 12-14 hours. After which we squeeze out the husks, filter the broth and dilute it with water at the rate of 2 liters of broth per 8 liters of water.

Hay infusion

At the end of the season, when cucumbers become especially tasty and crunchy, sometimes you want to prolong fruiting at least for a little while. Rotted hay can be a natural helper in this matter.

Foliar feeding to extend the “life” of cucumber vines : rotted hay is filled with water in a 1:1 ratio and infused for 48 hours. The cucumber plantation is sprayed with hay infusion three times with an interval of 7 days.

Cucumber processing scheme

Cucumbers are fed twice a season

You can fertilize cucumbers by foliar or at the root.

Root feeding

When adding urea, it is necessary to take into account that during the process of its penetration into the soil, a chemical reaction of the active element occurs with the bacteria present in the soil.

During the life of microorganisms, with the active intervention of nitrogen, ammonium carbonate begins to be released, which has a beneficial effect on the development of cucumber crops.

It is necessary to apply fertilizer under the root as deeply as possible, which minimizes the loss of ammonium from the surface of the earth and increases the effectiveness of the drug.

Urea can increase the acidity of the soil and the content of alkaline compounds in it (it is recommended to add the substance simultaneously with chalk in a 2:3 ratio).

First deposit

The initial spraying of cucumbers with urea is carried out at the stage of the appearance of the first leaves - it is applied under the roots.

When grown by seedlings, the procedure is recommended 2 weeks after transplantation.

Preparation of the solution: 30 g of fertilizer is diluted in 10 liters of liquid.

To speed up the adaptation period, you can add up to 50 g of superphosphate to the working solution.

Second contribution

You need to feed the fruits a second time at the stage of active fruiting.

For this purpose, a less concentrated liquid fertilizer is made, dissolving up to 15 g of urea in 10 liters of water.

If you add up to 30 g of potassium nitrate to the working solution, you can activate the process of formation and ripening of cucumbers.

Foliar feeding

Preparation of working solution: 5 tbsp. add granules to 10 liters of water.

Foliar feeding of cucumbers with urea is indicated when the bushes have a painful appearance, accompanied by yellowing of the foliage, its falling off and the absence or falling of the ovaries.

• Regular spraying at the stage of formation and ripening of cucumbers extends the fruiting period.
• Nutrition enters plant cells immediately through leaves and stems.
• Fertilizer is economical to use, because falls directly on the bush, and does not spread through the soil layers and is not washed away by groundwater.
• The use of treatment on foliage and stems is permissible at any stage of the growing season.
• Foliar spraying simultaneously acts as a way to combat pests and fungal, bacterial and viral diseases of cucumbers, strengthening their immune system.

The fertilizer shows high efficiency in dry seasons or during sudden cold snaps. The main goal is to replenish nutrition through the green mass of the plant.

Do not carry out the procedure during rainfall or active sun. The best time is considered to be the morning, before full dawn, or the evening, after sunset.

Main signs of nitrogen deficiency

Cucumber is considered a vegetable that every person loves. It is used not only fresh for preparing salads, but also pickled or salted. Therefore, gardeners are trying to grow more cucumbers for fresh consumption, pickling and sale. This is where proper care and treatment of plants comes in handy, because without this it is almost impossible to grow a good harvest.

With a lack of nitrogen, cucumbers will experience:

• growth slowdown;
• yellowing of leaves and even stems;
• falling leaves during the peak of the growing season;
• lack of formation of not only leaves, but also the ovary;
• reduction in yield levels;
• pale color of fruits;
• blunted growth of lateral shoots.

When the above signs of nitrogen deficiency are detected, it becomes necessary to add urea. However, you need to remember that cucumber seedlings can also be spoiled by excess nitrogen. This is manifested by the fact that only an excessive growth of green mass will be observed: the leaves will reach large sizes and have a dark green color. As for fruits, cucumbers may be absent or will grow crooked and underdeveloped.

Please note that when applying urea, you should remember that after it enters the soil, bacteria influence the composition, due to which ammonium carbonate is released. For best efficiency, fertilizer should never be applied superficially. Feeding cucumbers with urea will be effective if the composition is applied into the soil, because this will minimize ammonium losses.

Urea is endowed with the ability to increase soil acidity and alkali content, therefore, when used on acidic soils, it is recommended to add chalk in parallel with urea in a ratio of 200:300 g.

Processing of seedlings

Strictly observe the dosage of fertilizer

Seedlings need to be watered with urea during germination and at the transplanting stage.

It is worth considering that an excess of nitrogen leads to an increase in green mass. As a result, the foliage will reach large sizes and become dense, and the fruits will become smaller and will be underdeveloped. Therefore, the dosage of the substance is halved.

Before disembarking

Urea is applied directly during the process of digging the ground, before planting seedlings, ensuring the penetration of granules to a depth of at least 8-10 cm. The standard for use is 5-10 g/m².

The best option is to fertilize the soil with nitrogen not only in the spring, but also in the fall, after harvesting and removing remaining vegetation.

Before sowing

It is also acceptable to feed before planting seeds.

In this case, the granular preparation is poured directly into the formed holes - so as to avoid their close contact with the active substance, otherwise the subsequent germination and development of the plant will be delayed.

To avoid contact of urea with seed material, granules (4-5 g per hole) are added to the soil and sprinkled with soil, and only then the cucumbers are sown.

Advantages and disadvantages of urea

Urea is a fertilizer that has found application in many branches of horticulture - ornamental, fruit and vegetable, and also as an insecticide. It has more advantages than disadvantages, because it is a mineral fertilizer with an organic base, which means that plants will absorb urea faster than any other fertilizer.

First, some precautions:

According to the rules for the production of a high-quality composition, the content of biuret when released into the soil should not exceed 1.6%. An excess of up to 3% is allowed if it is a second-grade fertilizer.

When the biuret content exceeds 3%, it is necessary to add granules to the soil in advance so that they have time to decompose and excess ammonia evaporates. Otherwise, it may damage the roots of the plants. Growth will be stopped. It is desirable that there is a layer of soil between the roots and granules.

It is undesirable to apply large doses to the root zone of plants that have one main root, such as beets.

Its death leads to the death of the entire plant.

If the instructions for using urea fertilizer say that the substance is grade 2 or 3, then you need to be careful and put it in the soil 2 weeks before planting

It is preferable to immediately apply the full complex - nitrogen-phosphorus-potassium composition. From experience, this leads to more active seed germination and also reduces the possibility of an overdose of nitrogen fertilizers.

Now about the advantages:

The urea solution can be applied at any time - before sowing, during agricultural work and in the fall. When planted in the soil in autumn, the amide form of nitrogen granules is not washed out and remains in the soil until spring.

Foliar applications are possible at any time for emergency feeding if symptoms of chlorosis appear on the leaves of crops. A solution in a concentration of less than 5% is safe for green mass, but it must be done in the morning or evening, when the sun has already gone down.

If there is sufficient content of the enzyme urease (a waste product of microorganisms) in the soil, urea is completely broken down. Can be used with organic fertilizers to improve soil fertility.

The greatest effect is observed in regularly irrigated areas.

It has been proven that urea is a fertilizer that does not contribute to the accumulation of harmful substances in fruits.

Easily dissolves in water, providing a high degree of digestibility.

The important thing to know about urea is that it is a fertilizer that will not do any good if it is scattered on the snow. At low temperatures, soil microorganisms are inactive and therefore will not be able to break down the substance

Video: Urea - properties and applications

Processing of greenhouse vegetables

The greenhouse climate is almost ideal for plants. With regular ventilation and watering of cucumber bushes, the foliage rarely turns yellow, and the fruits themselves develop intensively.

Fertilizing cucumbers with urea is carried out no more than 2 times.

1. First (mandatory) - before flowering: 50 g of granules per 10 liters of water;
2. A second application is required if there are signs of nitrogen deficiency. They resort to foliar spraying: 15 g of granules per 10 liters of water.

Watering is carried out in the evening hours, when the risk of burns is minimized.

Important: the solution should not get on the root system, because in the greenhouse there is no movement of groundwater (which exists in the garden) and the active substance is not washed away along the soil layer.

What in the garden can be fed with urea?

When growing certain crops in your garden, you need to take care of their proper care. One of the important points remains feeding. Today, it is simply impossible to grow a good harvest without it. And although there are many nutritional formulations, urea is especially popular.

Urea is a synthesized protein compound that is widely used as a fertilizer for garden and ornamental plants. Thanks to its use, it is possible to accelerate the growth of crops. Urea is a type of nitrogen compound that has been used in agriculture since the 18th century.

Urea is produced by synthesis from inorganic substances. Presented in the form of a milky granular mixture. Although today it is possible to purchase this product even in tablet form. But the price of urea as a fertilizer used in the garden is indicated here.

If you study the chemical composition of urea, then almost ½ of it consists of pure nitrogen. It dissolves completely in water and any liquids. If you apply the product to the soil, it will dissolve in the water that the crops receive during irrigation. Smoothly entering the plants, urea saturates the root system for a long time and gradually.

In the soil, nitrogen changes the chemical composition. From the amide form it passes into the ammonia form, and then into the nitrate form. Due to such a smooth change in the chemical composition, it is possible to saturate the plant with all the substances necessary for full growth. But what types of nitrogen fertilizers there are for tomato seedlings are detailed here.

If it is not used, then plants begin to starve of nitrogen. As a result, it develops poorly and may die. It should be applied in the early stages of development of fruit trees or berry bushes. In addition, with a lack of nitrogen in the summer, the leaves may turn yellow, and in the spring the buds form very poorly.

How to breed

Excellent as protection against diseases and pests. To prepare the solution, you need to take 10 liters of water and 500-700 g of fertilizer. Since parasites are concentrated in the crown of a tree or shrub, treat the leaves and trunk with particular care.

If you need to fight scab and purple spot, you will have to take 500 g of granules and 10 liters of water. Apply the treatment at the end of summer, before the plant sheds its leaves.

Spraying can also be done late in the fall, but then 10 liters of water will require 700 g of granules.

If you use 250 ml of solution per 1 m2, then be sure that the plant is not afraid of any pests.

The use of urea as a fertilizer is allowed for different types of soil. Ideal as a basic fertilizer applied to the soil or for agricultural crops. It is in demand in protected ground conditions.

On those lands where there is waterlogging, watering with urea should be done in combination with ammonium nitrate. The fact is that this way urea nitrogen is better fixed with the soil and is less washed out by precipitation.

Carbide is also used as a base dressing and fertilizer, with immediate incorporation into the soil to prevent losses in the form of ammonia gas.

It is also worth learning more about whether it is possible to water carrots with urea, and how to do it correctly.

Table 1 - Recommended rate of urea application

Garlic

Fertilizing spring and winter crops with urea is carried out in early June. This is the first root feeding of this crop during the growing season and the only one used.

If you continue to use urea, the bulbs will become small, because the plant will increase its green mass. Add potassium chloride to urea - 10 g per 10 liters of water.

For those who want to learn more about the process of watering garlic with urea, you should follow this link.

cucumbers

During the entire growing season, cucumbers grown in open ground should be fertilized 3-4 times. Used as the first feeding. It should be done 12-15 days after planting the seedlings. A solution made from 15 g of urea, 60 g of superphosphate and 10 liters of water is perfect for this. Apply the solution into thoroughly moistened soil.

If you grow cucumbers in a greenhouse, then foliar fertilizing with urea is needed only if the plants have weakened or changed color to a lighter color.

To obtain a solution, you need to use 15 g of urea, 20 g of superphosphate, 15 g of potassium chloride and 10 ml of royal jelly. Spray the cucumbers with the resulting mixture. Do this in cloudy weather, after watering.

It is also worth learning more about how zucchini is fed with urea.

Tomatoes

Tomatoes respond positively to fertilizing using urea. For this vegetable crop, it is worth using it when planting and adding 15 g to the hole under each bush in combination with superphosphate.

If granules were placed in the soil when planting tomatoes, then there is no need to apply any more fertilizer. Plants need to be provided with regular and abundant watering. But how to fertilize tomatoes with urea after planting in the ground is indicated here.

Cabbage

It is not advisable to use urea when planting cabbage, but this product is ideal as a first feeding. To do this, you need to prepare a solution obtained from 30 g of urea and 10 liters of water. Before applying it, it is necessary to water the plants thoroughly.

Potato

This plant is a picky plant, as it does not absorb mineral fertilizers well. To increase productivity, it is necessary to apply fertilizers to the soil before planting. For these purposes, urea is sent to the ground 10 days before the expected planting of tubers. For 1 hundred square meters it will take 2 kg of product.

If it was not possible to add mineral compounds before planting, then you can use urea for potatoes only 4 days after planting. To prepare the solution, take 10 liters of water and 15 g of fertilizer. One bush will require 500 ml of liquid composition. It will also be useful to learn about how beets are fed with urea.

Strawberry

For this berry crop, urea is used with extreme caution. If you use nitrogen compounds in excess, this will lead to the fact that the berries will lose their taste, become watery, and there will be no pronounced aroma. It will also be useful to learn about how strawberries are processed with urea in the spring.

Fruit trees

For fruit trees, feeding with urea is very useful. It must be applied 3 times throughout the growing season. The first time - at the beginning of spring, the second time - during flowering, the third - when the fruits ripen.

It is for the third time that the rate of the product should be increased. Apply fertilizer along the diameter of the stem circle, taking into account the size of the rhizome. Cover the top of the urea with earth. In order for nitrogen to be absorbed as much as possible, the fertilizer should be buried to a depth of 10-20 cm.

Pepper and eggplant

These vegetable crops can be fertilized with urea during flowering and before fruiting begins. You need to take 10 liters of water, add 30 g of the product, 40 g of superphosphate and 20 g of potassium chloride. But how urea is fed with pumpkin is described in great detail in this article.

Urea is an effective fertilizing option for many garden and ornamental crops. Thanks to it, it is possible to saturate the plants with nitrogen, which is so necessary for their full growth. But it is worth applying the product in a strictly designated amount, since its excess will lead to negative consequences.

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It is not for nothing that the cucumber has gained national fame - it successfully combines a green, fresh aroma, crunchiness, juiciness and low calorie content. The nutritional value of this vegetable, however, is very small: consisting of 95-96% water, cucumbers include only up to 2.5% sugars, 1% proteins, 0.1% fat and vitamins A, B, C and P. But You can eat them as much as your heart desires - and you won’t gain weight!

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There is probably not a single summer resident who does not grow cucumbers on his plot. Therefore, the topic of feeding them is always important and relevant, because if you underfeed or overfeed, you will no longer see smooth, pimply, sweet little creatures, you will have to be content with ugly “commas”….

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Over the entire summer season, it is enough for cucumber bushes to fertilize 3-4 times. As a rule, we use mineral fertilizers

organic fertilizers

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root foliar

Each summer resident will choose the type and form of feeding or their alternation, but some general approaches should be taken into account by everyone.

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Root feeding is suitable for warm summers. Then the root system of cucumbers is well developed, and fertilizing goes off without a hitch. They are recommended to be carried out after rain or heavy watering. The best time is in the evening, or on a cloudy, cool day.

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Foliar feeding will be useful when the summer is cold and the weather is cloudy. Roots cannot cope with the absorption of nutrition in cold weather. But spraying the leaves will be just what you need.

The longer it stays on the leaves, the more necessary substances the plant will have time to absorb.

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I feeding - 15 days after planting II feeding - at the beginning of flowering III feeding - during mass fruiting IV feeding - also during the fruiting period; its goal is to extend the fruiting period of cucumber vines and make it more abundant.

The next video contains tips on feeding cucumbers in a greenhouse from a specialist.

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Attention! There is also an opinion: if cucumbers grow and bear fruit well on your soils, then you should not overdo it with fertilizing - you can limit yourself to just one or two.

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