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Potassium-phosphate fertilizers are mineral preparations. As the name implies, their main components are potassium and phosphorus, and complex species may include other substances. Such fertilizers are widely used by growers in growing flowering plants. During the period of budding and appearance of buds, they are recommended to be introduced in order to:
- increase in the number of buds;
- approximation flowering;
- extension of flowering;
- giving colors a brighter color;
- root strengthening system;
- faster maturation of young shoots.
A feature of potassium phosphate fertilizers is that they do not contain nitrogen, or have a small amount of it. This prevents the plant from redirecting its strength to growth at the expense of flowering.
Among the potassium-phosphate fertilizers for flowering plants, the following drugs have proven themselves well:
- potassium monophosphate;
- nitrophoska;
- nitroammophoska;
- diammofosk;
- potassium-phosphorus mixture "Autumn".
Potassium monophosphate
Two-component mineral fertilizer in half of its composition contains phosphorus and slightly less potassium. It is used to prepare solutions for watering seedlings of flowering plants( 10 g of the drug per bucket of water).Flowers growing in open ground are periodically fed with a more concentrated solution - 20 g of the drug per 10 liters of water.
Nitrophoresc
Gray granules are composed of potassium, phosphorus and nitrogen. In the spring before sowing seeds in an open ground, the plot is first fertilized with a nitrophosphate of 40 g per 1 square meter.
Nitroammofosk
Fertilizer contains phosphorus, potassium, nitrogen and sulfur. It is used in spring( before planting flowers) and in the fall, adding to the soil. Also, the drug is used for summer dressings in the form of spraying on the leaves( 2 tbsp of water per bucket of water).
Diammofosk
A complex preparation based on phosphorus, potassium and nitrogen. Bring into the ground before digging at the rate of 1.5 tbsp.lon 1 square.m. For irrigation using a solution of low concentration( maximum 2 g per 1 liter of water).Water the plants with them no more than once every two weeks.
The drug "Autumn"
The composition of the drug contains 18% potassium, 5% phosphorus, as well as calcium, magnesium and boron. Dry powder is applied to the soil during the autumn digging of the plot where it is planned to grow ornamental plants, at the rate of 35 g per 1 square meter.m.
During flowering, immediately before watering make 15 g of the drug per 1 square.m, and to improve the winter hardiness of perennial crops after flowering they are fertilized to 30 g in the same area.
In a solution of a drug, seeds are soaked before planting, and flowers are poured over them under the root.
