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Urea fertilizer

Urea and nitrogen fertilizer

The fertilization of the soil is a very important and often fundamental operation for the growth and development of crops: it allows the soil to be enriched with the nutrients necessary for the luxuriant growth of plants. Among the most important fertilizers there are nitrogen ones, since they have a higher percentage of nitrogen composition. The substance is in fact among the most important for the development of plants. Urea fertilizer, a particularly effective synthetic preparation containing mainly nitrogen, has been widely used in recent years. Urea contains 46% nitrogen and is one of the most active fertilizers. The presence of nitrogen in high quantities allows the plant to develop more rapidly, favoring budding and the growth of branches and leaves, acting indirectly on the sugars produced by photosynthesis. Conversely, nitrogen-poor soil will be responsible for slow growth and a weak plant, with premature leaf loss as autumn arrives. On the other hand, we must not exaggerate either: an excess of nitrogen may be responsible for a difficult lignification of the tissues and an excessive development that leads to a constant need for water and greater exposure to the risks of parasitic and fungal attacks.

Slow release fertilizers


Just as the composition of fertilizers varies according to the nutrients necessary for the type of cultivation to which it is decided to give life and development, also the type of creation and the release system of the substances themselves varies from product to product. The urea fertilizerit is an organic product that spreads through a slow release system of its compositional elements. Despite its organic origin, it is to be considered a slow release mineral fertilizer as it is obtained synthetically. In order to make fertilization effective and to exploit it optimally, it is necessary to bear in mind that various factors can affect the release of the compositional substances. Knowing these factors will allow you to more easily control the quantity of nutrients released and therefore to be able to best dose the product based on the specific needs of the crop and, of course, on the characteristics that distinguish the soil in which it was decided to give. life to their crops. The purpose of the slow sale, in fact,

Influencing factors on fertilizer release


The release of the nutritional substances of slow-release fertilizers is strictly dependent on the microbiotic activity present in the soil: all the factors that stimulate the activity of microorganisms, therefore, also favor the release of fertilizers. The main method for controlling the release of substances for slow release fertilizers is therefore to keep the salinity of the growing medium under control. Considerable difference is also given by the size of the fertilizer granules: the larger they are, the more they will lead to a slow release. The choice, therefore, must in this case be linked to the specific needs of the crops that we intend to take care of. In this way it will therefore be possible to adapt the fertilizer to the specific needs of the soil and fertilized crops,


The urea fertilizer is diluted in a proportion of 1: 1000 with water, to favor the gradual release. The diffusion of the fertilizer directly into powder is not excluded, but in this case care must be taken to mix it with sand in order to guarantee uniform diffusion and to be able to limit the nitrogen concentration, preventing it from depositing excessively and too much. located in the ground. As far as fertilization is concerned, the application at a superficial level will favor slow release and gradual absorption by the plant. This method will allow, in fact, to limit the percolation of nutrients during washing and to keep the level of salinity on the surface under control, limiting excesses. The nutrients must thus cross the entire growing medium, slowing down the spread. At the same time, the intermittent drying of the surface layer of the fertilizer, interrupted precisely by periodic watering, will contribute to the gradual release. Before using the fertilizer directly on all the soil affected by the crop, in case of first use, it is advisable to do some tests on a small area and only involving one or two plants, in order to have direct confirmation of the doses without I risk the whole crop.

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