Potassium nitrate is a compound whose use, at 90% purity, in 75% of cases is as a fertiliser. It is also known as potassium nitrate, potassium nitrate, potassium nitrate and has the chemical formula KNO3. As a plant fertiliser it is responsible for supplying nitrogen to plants, one of the main nutrients. It is a loose crystalline powder that dissolves quickly in water without leaving a residue. It can be applied using any fertigation system. The nitric nitrogen and potassium it provides promote plant development and crop quality respectively.
IDENTIFICATION AND PROPERTIES
Name: Potassium nitrate
Synonyms: Potassium nitrate, Potassium nitrate, Saltpetre
Chemical formula: KNO3
- Physical state : solid (Crystalline solid) Colour : White Odour : Odourless.
- pH : 6 - 9 [Conc. (% w/w): 50 g/l].
- Melting point/freezing point: 335 °C.
- Initial boiling point and boiling range: Decomposition temperature: > 600 °C.
- Flammability (solid, gas) : Non-flammable.
- Density : 2,1 g/cm3 @ 20 °C.
- Oxidising properties : Oxidising.
- Solubility in water : 320 g/l @ 20 °C.
- INDUSTRIAL USE for preparing chemical mixtures
- Professional preparation of fertiliser products
- Professional use as on-farm fertiliser: loading and spreading.
- Professional use as fertiliser in greenhouses
- Professional use as liquid fertiliser in open fields
- Professional use as fertiliser: maintenance of the equipment
KNO3 FOR PLANTS
Under the tab potassium nitrate for plants you can read more detailed information about potassium nitrate for plants.
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FERTILISERS ACCORDING TO THE CROP.
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USES OF POTASSIUM NITRATE
Industrial use for the preparation of chemical mixtures.
Professional preparation of fertiliser products.
Professional use as on-farm fertiliser: loading and spreading.
Professional use as fertiliser in greenhouses.
Professional use as liquid fertiliser in the open field (e.g. fertigation).
Professional use as fertiliser: maintenance of the equipment.
POTASSIUM NITRATE FERTILISER
Potassium nitrate is a loose crystalline powder that dissolves quickly in water without leaving a residue. It can be applied using any fertigation system. The nitrate nitrogen and potassium it provides promote the development of the plant and the quality of the crop respectively.
Other advantages are that it is free of chlorine, sodium and heavy metals and can be mixed with all other soluble fertilisers.
Nitric nitrogen is directly and completely (unlike other forms of nitrogen) available to the plant after application, thus achieving a rapid and calculated effect on the plant's development. A further effect of nitrate nitrogen is synergistic, as it promotes the uptake of cations such as potassium, calcium and magnesium. Potassium affects the appearance of the fruit, its colour and sugar content, so it is very important for higher quality crops. Potassium increases the thickness of the cell walls, protecting the plant against pests and diseases, as well as frost and drought. It also stimulates the growth of strong stems and the durability of fruits after harvest.
Nitrogen is one of the 12 nutrients that plants need for proper growth. It is one of the 12 macronutrients for plants.
How nitrogen deficiency affects
Its deficiency is noticeable in the older leaves, that is to say, in the lower leaves, as they will be lighter than pale green, turning light green and then yellowish up to the veins. This process is known as chlorosis, which is caused by a lack of nitrogen.
The lack of azoe, as it is also known, is the element that makes the foliage weak and sparse, and causes the lower leaves to start to fall off. Thus, after a deficiency of Nitrogen for Plants, there will be poor flowering, stunted and yellowish appearance.
How to supply nitrogen to plants
One of the most traditional ways is to apply nitrogen fertilisers, such as harmonic nitrate, Calcium nitrate y potassium nitrate. Organic fertilisers such as worm castings, manure, compost, worm castings and mulch provide nitrogen for plants as they decompose.
Ideally, the plants should be fertilised at least annually with one of these products. Leguminous plants provide nitrogen to the soil through their ability to fix nitrogen via a rhizobium symbiosis, and cruciferous plants, which are rich in potassium.
What happens if there is an excessive supply of nitrogen?
Did you know that excess nitrogen is harmful? If there is an excess of nitrogen there will be an exaggerated growth of the plant with an intense green colour, forming weak plants with tender tissues; therefore they are more prone to pests, diseases, weak to rain, hail and frost.
The above process makes the plants more sensitive to mites, with scarce flowering, excess leaves and few flowers. You can even observe that the excess nitrogen will generate incomplete flowers, without stamens or pistils; the same will happen with their fruits, which will have an abnormal colour, appearing gummosis in fruit trees and gum exudation from branches.
Plant nutrition must not be neglected in order to obtain excellent results in the cultivation and harvesting of fruit trees.
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