Lack of nitrogen in plants leads to poor development of buds, frail and undeveloped shoots, scant leaves, early dropping of leaves. Urea will help to correct the situation. What is it for and what to do with it? On its application and processing of the garden and the garden, we'll talk further.
What is urea?
This mineral fertilizer with a high concentration of nitrogen. It is used as the main or additional feeding for different cultures.
After the introduction of urea, the plants grow well and abundantly bear fruit. Pests such as weevils, aphids and coopers disappear after spraying.
Purple blotch will recede from fruit trees and shrubs if they are treated with a solution in early spring and late autumn.
Urea and urea: are they the same or not?
In fact, these are two names of one fertilizer. At first, it was synthesized from the urine of livestock by evaporation, the resulting substance was called urea.
Urea is the scientific name for a chemical compound currently being produced.
Fertilizer is a small white granules, soluble in warm water.Urea and urea are one and the same
The composition and properties of the drug
Urea is a highly concentrated nitrogenous fertilizer that contains no nitrates. Its use is preferable at the plant development stage. If you use it at the stage of bud formation, then you can lose it in the harvest.
Positive properties of fertilizer:
- Not able to cause burns to plants, while spraying.
- Increases autumn fruit harvesting from garden and fruit crops.
- Excellent against parasites and pathogens.
- In a short time absorbed by plants.
- The concentration of nitrogen in plant cells increases, within two days after spraying.
- Able to slow down flowering and reduce the risk of falling flowers in the frost.
- Increases the amount of protein in cultures.
- Practically not washed into the lower layers of the earth.
- Slowly breaks down in the ground.
- It is easily dissolved, does not leave sediment.
Negative side of urea:
- Reduces germination of seeds, if there is too much of it in the soil.
- It is capable to harm young shoots, at wrong use.
- Stored at certain prescribed rates.
- It is badly combined with many elements.
Combination with other fertilizers
Urea is not recommended to be mixed with alkaline fertilizers, because after a chemical reaction, ammonia is released and nitrogen disappears.
If you combine urea and powdered superphosphate, then the properties of these fertilizers change. This can be avoided by adding limestone, bone or phosphate rock to the superphosphate.
For a long time you can store a mixture of urea and:
- sodium and potassium nitrate;
- potassium chloride;
- potassium sulfate;
- ammonium nitrate.
Before fertilizing garden and fruit plants, urea can also be mixed with phosphate rock, superphosphate, ammonium sulfate.
Instructions for use of the solution
Spreading carbamide granules around the garden will not give the expected results, as under the influence of air, its compounds disintegrate. Maximum efficiency is achieved if you bring it into the soil. Air access to ammonium carbonate will be limited, as a result, nutrients will get to the plants.
Urea is suitable for use on all types of soil.
In the autumn, it can only be used in an empty garden, as it can harm perennial plants and winter varieties of onions and garlic. But experts believe it is inappropriate to apply it at this time, due to the fact that urea quickly decomposes, and some substances evaporate.
Fertilizer is better to make in the spring for the active growth and development of plants. Top dressing solution is effective in wet ground. In granules, it is used for digging and loosening.Urea is added in spring for better plant growth.
To prepare the solution it is necessary to dilute the granules with 2 liters of water. Stir until dissolved, then add water to the required volume.
Spraying and processing garden
During the period of plant growth, it is better to apply spraying with urea, which is carried out at sunrise or sunset, in calm weather.
To destroy overwintering pests, it is necessary to treat the trees before the appearance of buds, when the average daily temperature is set at + 5 ° С
In the period of leaf fall, you can sprinkle trees that have infectious diseases, as well as their fallen leaves. This is necessary so that next year the culture will not fall ill.Urea can be used on all cultures.
Horticulture application rates
For vegetable crops, flowers and berries per 1m2 :
- roses, irises, calla lilies, hyacinths, hippeastruma - 5-10 g .;
- cucumbers and peas - 6-9 gr .;
- squash, eggplant and zucchini - 10-12 g .;
- Peppers, tomatoes, cabbage, beets, potatoes, onions and garlic - 19-23 grams;
- strawberries - 13-20 grams.
For fruit crops one plant:
- young pears and apple trees - 150 g;
- fruiting pears and apples - 200-250 grams;
- young plums, cherries, berry bushes - 70 grams;
- fruiting plums and cherries - 120-140 gr.
Urea is a very effective fertilizer in gardening. They can feed plants and soil, destroy pests, protect crops from diseases. For best results, you need to dilute the 5 percent solution, according to the instructions, and also try not to scatter it on the garden plot. It should be remembered that it is useful for plants in the spring during the period of green mass gain, and for the prevention of diseases and pests - after the first autumn leaf fall.