It is impossible to imagine caring for garden and floral crops without fertilizers. The urea has a special place among them.
Carbamide (urea) is a fertilizer which is the leader among many nitrogen fertilizers used in agriculture. This organic compound is composed of nitrogen. It is mainly produced in the form of white or yellow-gray granules; however, recently the production in the form of tablets has been launched and they are coated in order to reach a long dissolution in the soil.
The fertilizer is widely used due to a lot of advantages:
– When the substance is injected into the ground it dissolves slowly, so an excessive accumulation of nitrates in fruits is excluded.
– It favorably affects the vegetative mass increase;
– It increases the protein content in a grain;
– The fertilizer improves crop yields.
Getting into the soil, it dissolves slowly; therefore the excessive nitration of soil and crops is ruled out. While interacting with the soil microorganisms, urea is converted into ammonium carbonate.
Nitrogen is the most important element that affects the growth and development of fruit and vegetables. It is involved in building molecules and is a component of plant protein. Stimulating the growth of plants, carbamide can contribute to achieving high yields.
How to apply urea?
Interacting with air, ammonium carbonate undergoes a rapid decomposition, so applying urea on the surface is ineffective. It is recommended to use carbamide in protected soils (e.g. in greenhouse). When fertilizing, it must be immediately laid in the soil, preventing the loss of ammonia.
Due to the fact that ammonium carbonate actively decomposes in the air superficial introduction of urea is considered ineffective. It is recommended to put this fertilizer into the soil and to plow it immediately in order to avoid losses of gaseous ammonia.
The use of carbamide makes soils sour, so to neutralize the acid it is recommended to lime it.
Urea, along with its advantages, has some peculiarities of applying. The dissolution of the substance leads to the decrease in the temperature of the solution. For example, if you dissolve 20 kg of urea in 100 liters of water the temperature of the solution is reduced by 9ºC. While processing plants with this solution hypothermia can occur which can result in negative consequences, as the difference between the temperature of the working solution and air does not have to exceed 10-12º C.
How much urea is needed?
Urea is universal fertilizer. It can be used for the feeding of any cultures with different vegetation period.
– When you are planting vegetables and fruits, you must put urea granules into the soil at the rate of 10 g per 10 liters of water.
– For develop of plants the urea amount is calculated as follows – 20-30 g of fertilizer per 10 liters of water.
– With regard to fruit-bearing trees, the urea is introduced into the soil by tree crown projection. For example, apple trees need about 200 grams of urea.
We must remember that urea is acidic, and necessary to make the calculation of limestone 800g limestone per kg of urea to neutralize it.
Foliar application by urea
If plants showing signs of starvation, it is necessary to lead foliar application by spraying the urea.
Urea practically does not burn plant leaves, in contrast to ammonium nitrate. For feeding vegetables recommended to take 50 grams of fertilizer per 10 liters of water, fruit crops – 30 g in the same bucket.
The protective properties of urea
Urea is an effective tool in the fight against pests. With the onset of spring, the beginning of the process of growth, a solution of urea is introduced as a means of combating having survived insects after winter – weevils, aphids and others.
For this purpose of preparing a concentrated solution of urea and for every 500 grams of this solution add 10 liters of water.
In the fall, during leaves falling, fruit trees and bushes sprayed with a solution of urea to fight infectious diseases – purple spot, scab and others.
Must be processed not only plants, but also has a layer of fallen leaves. The solution is prepared as well as to control insects.
Proper use of urea in the garden area will allow you to get a good crop!
Variants of packaging: bag of 50 kg., Big-Bag 700 kg., Big-Beg 800 kg.
Country of origin: Ukraine