Roses love good nutrition and are very responsive to fertilization. According to their biological characteristics, they have characteristic vegetation periods, each of which has its own nutritional requirements.
At the onset of spring, we remove winter shelters, by pruning we stimulate the growth of roots and shoots, the green apparatus is growing, the plants intensively absorb nutrients, especially nitrogen. At this time, we feed the roses with ammonium nitrate (1 tablespoon per 10 liters of water). After 12-15 days, you can again repeat the ammonium nitrate or add urea (especially if the spring is rainy and nutrients are quickly washed out). The third feeding coincides with the beginning of budding. In order for the buds to bloom slowly and the flowers have a juicy color, we feed the roses with calcium nitrate (1 tablespoon per 10 liters of water). In the summer, to restore and form new flowering shoots and flowers of re-flowering, we apply a complete mineral fertilizer. It can be "Kemira", "Kristallin", "Rizhskoe" or any complex fertilizer (1 tablespoon per 10 liters of water) and add 1 tablet of micronutrient fertilizers. In the second half of summer, nitrogen should be excluded. Once a season you need to add "Potassium Magnesia" (1 tablespoon per 10 liters of water). Then, with an interval of 12-15 days, the plants need phosphorus and potassium. Phosphorus-potassium fertilizers are needed to accumulate a supply of nutrients, to ripen shoots and prepare roses for winter. For autumn dressings, you need double superphosphate (1 tablespoon per 10 liters of water) and potassium sulfate (1 tablespoon per 10 liters of water).
It should be remembered that organic and mineral fertilizers complement each other. Nutrition comes from mineral fertilizers. Organic matter decomposes more slowly, helps to assimilate them faster. Therefore, after each fertilizing with mineral fertilizers, I spill the roses with organic matter: this is either fermented mullein (1:10) or fermented chicken droppings (1: 20), or albumin (1:10), or an infusion of cut grass. The herb infusion is prepared as follows: I fill 3/4 of a 200-liter barrel with chopped nettles, dandelions, mown grass, fill it with water and add 2-3 tablespoons of soda ash or urea and leave for 5-7 days. Then I put the fermented grass on a compost heap, filter the water and use it for irrigation (1–1.5 liters per 10 liters of water).
It is better to apply all fertilizers in liquid form (3-4 liters per bush) with obligatory watering before fertilization and obligatory incorporation into the soil (loosening).
In order for the plant to fully assimilate nutrition, there must be enough humus in the soil, the source of which is peat. When peat is applied, the structure of the soil improves, therefore it is advisable in spring after pruning and feeding, in summer after summer pruning and in autumn to mulch the soil with a layer of peat 5–7 cm. Mulch protects plants from drying out, overheating and hypothermia and allows plants to develop much faster.
Before the first flowering, to stimulate plant growth, I spill sodium humate twice (1 teaspoon in crystals for 40 liters of water). For each bush, 2-3 liters of solution is enough.
Sometimes the root system of plants loses the ability to absorb nutrients from the soil. This occurs during the period of cold rains, when watering roses in hot summers with cold water, when soil is salted (when fertilizing with a higher concentration) and other unfavorable conditions. In these cases, I use additional foliar dressing. To do this, use solutions of sodium humate, infusion of mullein (1:10), urea (1:10), ash solution (pour 2 glasses of ash with hot water, boil for 10 minutes, insist, strain and dilute in 10 liters of water). I spray the plants on the leaves with a freshly prepared solution. It is better to do this either early in the morning or in the evening so that the leaves have time to dry in order to avoid fungal diseases.Foliar dressing alternates with basic dressings.
In the second half of summer, as a foliar dressing, I use a double superphosphate extract with the addition of potassium nitrate (pour 10 g of superphosphate with hot water, leave for 3-4 hours, strain, dilute in 10 liters of water and add 10 g of potassium nitrate).
During stressful situations: in the spring, if the plants have suffered from recurrent frosts, during hot dry summer, during plant transplantation, after pruning, I use EPIN for spraying (1 ampoule per 5 liters of water).
Only a well-balanced and varied diet allows roses to show themselves in all their glory, to give us a large, bright flower, to keep it on a bush or cut in a vase for a long time.
 |  |
