Precipitate (calcium hydrogen phosphate) is a concentrated phosphate fertilizer used for preliminary enrichment of soils before planting or sowing crops, as a mineral top dressing, added to pet food. What kind of fertilizer it is, what the precipitate formula looks like, and also how to apply the phosphate fertilizer precipitate read on.
How to recognize the precipitate in the market
Externally, calcium hydrogen phosphate is white-black in color, powdery with inclusions of finely ground granules. It does not cake and does not dissolve in water. Therefore, the solubility of precipitate in water is a question that most often interests gardeners and gardeners.
It resembles fluffy powder. During the application of fertilizer difficulties, as a rule, do not arise, but it is recommended to pay attention to some features:
- the substance does not dissolve in water;
- in combination with other mineral fertilizers, the fertilizer acts more actively.
Today, the market is filled with a variety of fluorine-type fertilizers: superphosphates, phosphate rock, tomosclack. But the precipitate is the most effective and one of the very first fertilizers containing phosphorus.
The formula and composition of the substance
The precipitate formula is as follows: CaHPO 4 · 2H 2 O - two-water dicalcium phosphate. This mineral-based chemical composition is obtained by combining phosphoric acid and limestone or chalk, which react with each other. The acid is neutralized, maintaining the temperature during the reaction at around 50 about . The fluorine content in the composition is 50%.
The composition of the fertilizer is suitable for use on podzolic soils. Actively affects the acidity of the soil, contributing to its reduction.
Why it is recommended to use mineral phosphate fertilizers in agriculture
To grow a good harvest you need to work hard. For this purpose, as well as to stimulate the growth and flowering of plants, agronomists recommend to apply fertilizers, for example, phosphoric ones, during the growing process. The precipitate is a vivid representative of this group of fertilizing. It is actively used both as an independent fertilizer and as a component of other complexes.
Fertilizer, whatever it is, is responsible for healthy active cultivation of plants, obtaining the highest quality crop. Recently, not only organic compounds, but also mineral complexes, which are enriched with chemical elements, have been popular. An element that is indispensable in the composition of the precipitate is phosphorus, which is responsible for fertility.
How phosphate fertilizers affect plants
So, using precipitate as a top dressing for your crops, you can count on solving such problems:
- yield increase;
- resistance of plants to a variety of immune diseases;
- improving the quality characteristics of the fruit, including keeping quality;
- emphasis on improving organoleptic coefficients.
Precipitate is a fertilizer that can actually be used on any soil. Although the best reaction is on podzolic soils, as they are more prone to oxidation than others.
A distinctive feature of water-insoluble powder is its rapid decomposition into individual components under acidic conditions, which allows the soil to be saturated with phosphorus even faster. This effect is more pronounced when fertilizing young cultivated plants, the root system of which has not yet fully formed. It is phosphorus that makes it stronger and stronger. He is also responsible for increasing the level of sugar in the fruit, which directly affects the taste of the future harvest.
Another feature of the precipitate as fertilizer is the facilitation of the assimilation by plants of poorly soluble salts contained in hard rock soils.
What is the principle of phosphate fertilizer
The principle of operation of the precipitate - phosphorus fertilizer and mineral dressing for vegetable and garden crops, as well as feed for large pets in its scheme resembles the principle of action of any other composition, which is based on phosphorus. The only difference is the duration of the process, which is longer for calcium hydrophosphate (precipitate). You can not say about superphosphate, which decomposes many times faster in an acidic environment. Based on this, it is easy to imagine how quickly weakened plants will be saturated with all the nutrients necessary for healthy growth and development.
Among the features of calcium hydrophosphate is another important quality - precipitate is a composition that is harmless to both the soil and the plant compared to other top dressings containing phosphorus. This is explained in a trite way - by the minimal content of chemistry.
How to understand that a plant needs to be fed
Among the main signs indicating that the plant needs fertilizer with precipitate, the following factors:
- the lower leaves of the plant acquired a purple color with a purple tint, instead of a healthy dark green;
- leaf structure has changed;
- plant growth has slowed or stopped;
- insufficient nutrition of the aerial parts of the plant due to weakening of the root system.
As you already understood, precipitate is an indispensable fertilizer in agriculture, which makes healthy competition to other compounds because of its safety and effectiveness. It will be an excellent assistant for the gardener. We hope the information presented will help in choosing a fertilizer for your kindergarten or garden, both for a novice and an experienced gardener.