Foliar top dressing

Growth stimulants are used to increase the size and number of flowers per plant, to extend the flowering period. For this purpose, adult plants are exposed in two ways:

an aqueous solution of heteroauxin in a weak concentration is sprayed from the sprayer onto the leaves, stems, and shoots of the plant. Its small droplets get through the stomata into the tissues of the plant and give a quick effect. Such a supply of solution to the plant is called foliar feeding;

solution of heteroauxin water the soil during planting.

For flyers, it is optimal to use 3 additional fertilizing during the growing season. The first is carried out 15 days after planting, the second - in the budding phase and the third - during flowering. In each feeding, no more than 40 g / m2 of nutrients are added. The use of higher doses of mineral fertilizers reduces the decorative qualities of flying: they become short, form small flowers, have a shorter flowering period. When carrying out the feeding of the flying machines, it is necessary to take into account the biological characteristics of some crops. All annual plants( asters, gillyflowers, carnations, etc.) are very responsive to top dressing. So, the best decorative effect for growing gillyflowers is obtained by three-time top dressing with full mineral fertilizers. Asters prefer the first fertilizing with nitrogen fertilizer, the second - full mineral, and the third - phosphoric-potassium fertilizer. Carnation is a culture that is demanding for nitrogen throughout the growing season;if phosphorus-potassium fertilizers were applied before planting, then in the top dressing it is possible to give only nitrogen.

When applying fertilizers, it is necessary to check the acidity level of the soil, since the acid reaction of the soil environment significantly reduces and even neutralizes the effect of mineral fertilizers.

Extra feeding of perennial rhizome and cormorant cultures( gladiolus, phlox, peonies, delphinium) is a necessary condition for their successful growth and high decorative qualities. The best development of these crops is achieved with a 2-fold top dressing them during the growing season. The first fertilizing with nitrogen is carried out with the appearance of sprouts, the second with full mineral fertilizer at the beginning of budding, the third with full mineral fertilizer in the flowering phase, the fourth with phosphorus-potassium fertilizer at the end of flowering. The dose of fertilizers in top dressing for rhizome perennials depends on the age of the plants: in the first 2 years of life they make no more than 40 g / m2, for older plants 60 g / m2 of nutrients are used in each feeding.

It is especially important to give top dressings for dahlias, as modern varieties have a powerful aboveground part and an underdeveloped root system. It is effective to carry out weekly top dressings at the beginning of vegetation with nitrogen, then full mineral fertilizer( at the rate of 10-15 g / m2), alternating them with top dressing with liquid manure. If fertilizers were applied to the soil before fertilization, 2 fertilizing during the vegetation period is enough: the first - full mineral fertilizer in the budding phase, the second - by applying phosphate-potassium fertilizers in a dose of 90 g / m2 at the beginning of flowering. When top dressing is very important to comply with the dosage, because the excessive concentration of fertilizers can lead to burns and death of plants. The correct system of nutrition of flower plants will provide them with high decorative qualities.

Nitrogen fertilizers are introduced in the spring in rows or holes during planting and planting, and then as a fertilizer directly under the plant in the first half of summer, when its intensive growth takes place. In the second half of the summer, the need for plants in nitrogen decreases. Moreover, for perennial plants excess nitrogen is harmful, as it slows down their growth and they do not have time to prepare for the winter.

Phosphoric fertilizers are applied to crops with short vegetation period usually in autumn or spring. Feed only crops with a long period of vegetation: roses, clematis, lilies, other wintering perennials, as well as long-flowering annuals. Potassium is best applied in the spring( except fertilizers containing chlorine).Wintering perennial perennial flower crops are fed in August-September.