Urea or carbamide is a unique chemical compound, namely, the final product of protein metabolism. Urea is the first organic compound that was synthesized from inorganic matter. This is a great fertilizer for the dacha.
How to apply urea for fertilizer?
The composition of urea includes nitrogen, which is represented in easily digestible amide form, so that it is quickly absorbed by both roots and leaves of plants. Because of this, today urea is often used as a fertilizer. As soon as urea enters the soil, the amide form of nitrogen is converted into ammonia and then into nitrate.
This process is rather slow, therefore, the plant will absorb nitrogen evenly.
It is not surprising that today urea is the most common fertilizer among gardeners and summer residents. It comes in the form of transparent or white granules, sometimes, slowly soluble tablets.
Features fertilizer vegetable plants
Today, urea is justified is used to maintain vegetable plants during the beginning of flowering and subsequent fruiting. Almost always, this type of fertilizer is introduced superficially.
Urea granules are scattered on the ground around the plant, after which the soil is slightly crushed with a small amount of soil and the surface is leveled with small rake. At the end of the fertilizer it will be necessary to water the beds.
As soon as urea enters the soil, the immediate interaction of the active substances with enzymes and bacteria in the ground begins. As a result, this may lead to the fact that a certain part of it gradually turns into ammonia. Therefore, it is recommended that urea granules be slightly buried in the soil, otherwise some of the gas will evaporate. Also, it is necessary to deepen the pellets even when the land is very wet.
It is worth remembering that, provided that the fertilizer granules are simply scattered on the soil surface, most of them can be washed during rain or watering.
As a fertilizer, urea should be used in a strict dosage, especially if it is used to feed various vegetable crops. For example, when fertilizing eggplants, potatoes and onions, you will need about 20-30 granules per square meter. 8-10 granules will be quite enough to feed zucchini and cucumbers.
In the form of fertilizer can be used not only granules, but also slowly soluble tablets. As soon as they fall into the soil, a gradual dissolution begins (this process can be long). This can lead to a significant increase in the time of action of the fertilizers themselves.
The 1st recharge should be carried out at about the same time when the appearance of 1 flowers on plants begins. The next feeding is in the beginning of the fruiting period, since at this time the crops need support.
Urea can act both as a fertilizer and as an effective means against pests of fruit crops. But at the same time it can not be used for vegetable crops, as a means in the fight against parasites. The fact is that urea can completely burn the delicate leaves of the plant, which in no case should be allowed.
In the case of processing fruit trees, it is recommended to use the following solution - exactly 500 g of fertilizer dissolves in 10 liters of water. It is necessary to carry out processing in the fall when all foliage will fly around. It is worth remembering that this amount of solution is calculated on approximately 10 sq.m. It is possible to spray the crowns of those trees on which a large number of pests were noticed in the summer.
If urea will be used to feed fruit trees, then in this case, 1 tbsp of water dissolves 1 tbsp. l fertilizers (this amount of solution was calculated per 1 sq.m.). In this case, a surface fertilizer can be used, that is, a means is sprayed on the circle of a pristvolny circle, after which the soil must be leveled with a rake. It is desirable to carry out such processing in the spring. Also brings benefits and fertilizing, which is carried out in the period of the onset of fruiting, as well as after the shedding of 1 ripened fruit.
Fertilizer "Urea": how to use?
Urea today is one of the most effective means of combating a variety of pests. As soon as the first warm days begin, even before the kidneys swell, it is recommended to use this substance to remove hibernating parasites (if not treated in the fall), which include weevils, hedgehog, aphid, etc.
To obtain the desired effect and in order not to harm the tree, it is necessary to familiarize yourself with the rules of urea breeding. To get a solution to combat various pests - strictly 500 g of urea is dissolved in 10 liters of water.
In order to protect the plant from purple blotch, scab, and other dangerous infectious diseases, it is necessary to spray on the first day of the beginning of the period of foliage shedding (autumn). It is possible to carry out the treatment of both fruit-bearing trees and berry bushes, and of course, you should not forget about spraying fallen leaves that can be carriers of infection. In this case, preparing the same solution as for the fight against harmful insects.
If the 1st signs of the onset of starvation of the plant become noticeable, and of course, when shedding the ovary of berries and fruits, foliar top dressing should be immediately carried out using the method of spraying the plant with a solution of urea from special sprayers. If there is no possibility to use such a device, you can carry out processing with a simple broom. However, one must be extremely careful that the solution does not get into the eyes and on the skin.
Ammonium nitrate can be used with the same purpose, but, nevertheless, urea is the most effective, since it causes much less damage to foliage.
During the foliar top dressing of the plant with urea, during the beginning of the growing season, it is necessary to prepare 3 liters of solution, which is designed for 10 sq.m. For the processing of vegetables you need such a tool - 60 g of urea is dissolved in 10 liters of water. When processing fruit crops, it is necessary to prepare a different composition. In one bucket of water about 30 g of the product should be diluted.
Inexperienced gardeners believe that the ideal option would be to scatter the required amount of fertilizer during rain or snow, and together with water it will fall into the soil. But this is fundamentally the wrong decision, because as a result, all the useful substances will simply be washed out and will not reach the deeper soil layers.
It is best to stop the choice on the local application. In this case, it is necessary to prepare a solution that is poured out with a watering can as close as possible to the root system.
You can also use another method - a not very deep hole is dug, into which the fertilizer is placed, and then the soil is leveled. And a positive result will not have to wait too long, because the plant will create ideal conditions for improving growth and fruiting.
If, however, urea and superphosphate are mixed, it is necessary to immediately use the entire volume of the fertilizer obtained, since it is not recommended to store it for too long. The main reason is that over time, urea begins to gradually draw water out of superphosphate, as a result of which it clumps.
Today, it is urea that is one of the most popular types of fertilizer that can be used for both fruit and vegetable crops. And this is not surprising, because thanks to the use of this tool, it becomes possible to increase the yield several times. However, it should be taken into account that such a result can be obtained only if the fertilizer is used correctly - it is important to strictly observe the indicated dosages. Among the advantages of this product are not only its high efficiency, but also relatively low cost. It is quite affordable, and you can buy it at any garden store.