Urea for spring currants

Urea (urea) is considered the most important mineral fertilizer for feeding the garden. This compound allows you to saturate the soil with nitrogen - one of the most necessary compounds for the successful growth and development of shoots and green mass of plants. That is why annual feeding of this substance is a traditional procedure. The article describes in detail how to properly feed currants with urea and what is needed for successful spraying of the bush with this drug.

Urea for spring currant processing - properties

In the natural environment in concentrated species, this compound does not occur, since the substances obtained during the chemical reaction are distinguished by increased solubility in any natural solvents. The main value of urea is the increased content of freely available nitrogen in dry crystals, the amount of which is about 40-60% of the total mass. This is an essential element for the growth and development of any plant, and currants in this regard is no exception.

Urea is a white crystalline granule obtained by condensation of sodium compounds from ammonia in a medium with carbon dioxide at elevated temperature (+ 140 ° C) and pressure (200 atm).

It is found in almost all tissues and structures of the plant organism, and also plays one of the key roles in it. Its main task is to provide the plant with protein compounds, which ensures uninterrupted production and growth of cells, as well as specific tissues. In addition, nitrogen is the main element of the photosynthetic apparatus of each plant organism.

It is part of the so-called chlorophylls, due to which photosynthetic processes occur in leaf cells. And their activity is the main condition for the accumulation of carbohydrates in plant tissues and other important compounds. Special attention should be paid to the protective properties of urea.

Did you know? Urea was first synthesized in 1828 from inorganic compounds . The author of the discovery was a German chemist and one of the founders of organic chemistry, Friedrich Wöhler.

Due to its periodic use in plants, overall immunity against characteristic infections is increased. In addition, in combination with copper sulfate, it is possible to obtain a remedy that differs in reliable action against the main ailments and insect pests of currant. And this allows you to use the solution as the best drug to protect against almost any disease and pest culture.

Therefore, neglect of urea fertilizing is often the main reason:

  • inhibition of growth and development of currants;
  • the appearance of pathologies of green mass (spots, twisting, yellowing, death of leaves);
  • deterioration of crop yields;
  • shedding berries;
  • lesions of the bush with fungal and parasitic invasions.

The appearance of pathologies of green mass (spots, twisting, yellowing, death of leaves).

When and how to apply

Despite its benefits and universal importance for the plant organism, mineral mixtures require strict adherence to the agricultural technology of their use. As practice shows, urea top dressing is especially important in the early stages of vegetation - this allows the shrub to best restore activity after a long winter and actively enter fruiting.

Did you know? The territory of England is considered to be the birthplace of currant. In Russia, berries were first grown only in the 11th century. At the same time, the monastery gardens became the center of its distribution, due to which the ancient Rusichs called the plant “monastery berry”.

That is why the introduction of nitrogenous mixtures is carried out before budding, approximately in March-April. In this case, the most appropriate stage is the green cone, when the kidney barely cracked, but has not yet begun to open. In other periods of vegetation, such top dressing can cause inhibition of currant productivity.

How to feed currants with urea

Urea top dressing is done in two ways: in the first case, the plant is fed with a liquid solution, in the second it is applied in a dry form. Dry top dressing is done after watering, for this, urea is evenly scattered across the soil with a calculation of 10–20 g / m². After this, the beds are thoroughly irrigated, during which the fertilizer granules dissolve and soak up the soil. This method is the simplest, but often it does not help to comprehensively impregnate the substrate with nitrogen, therefore, aqueous solutions are considered more effective.

To nourish the bushes with liquid top dressing, approximately 10 g of urea is previously dissolved in 1-2 l of warm water. After this, the concentrate is brought to 10 l, and then used for irrigation - the resulting volume is ideal for adding 1 adult bush to the trunk circle. To prepare the working fluid, use only clean and settled water, and always room temperature.

Important! If you want to increase productivity and quantitative indicators of the crop, the rate of urea consumption for liquid top dressing should be increased to 20 g.

In agronomy, urea is also used to spray currants, in which case it will become the best tool for fighting infections and crop pests. To protect the fruit shrub from this problem throughout the spring, it is enough to combine 700 g of urea and 50 g of copper sulphate, and then dissolve them in 3 l of warm water.

Next, the resulting liquid should be brought to 10 liters. In this case, it is possible to immediately fulfill two tasks: to carry out the prevention of diseases and to feed the beds.

Spray the bushes with this mixture should be thoroughly, from the basal rosette to the edge of the shoots.

Precautions when working with the drug

Despite the fact that urea can be called one of the safest fertilizers, both for plants and the environment, it should be borne in mind that this substance is a fairly aggressive compound. That is why when using it, you must follow some safety rules. This is the only way to protect your health from the negative effects of substance vapors.

Important! It is possible to process the beds only after the minimum air temperature during the day has increased to + 5 ° C or more. Otherwise, the introduction of liquid to the site can provoke hypothermia of currants, with subsequent inhibition of its growth.

To do this:

  • prepare solutions only in protective gloves and a respirator;
  • in case of spraying, in addition to basic protective equipment, it is imperative to use a chemical protective suit;
  • feed and treat only on a dry, calm and cloudy day, in the early morning or evening;
  • after the procedure, it is imperative to take a shower and thoroughly clean exposed areas of the body with a soapy solution.

Urea is the most important fertilizer for any gardener, its application eliminates the nitrogen deficiency in the soil, due to which the productivity of the currant garden is often reduced. You can feed the bushes with urea throughout the growing season, but in order to ensure the most optimal care for plants, it is best to use the drug in the spring, before the leaves bloom.

Interesting Articles