Sunflowers are an important oilseed crop that is used to produce oil, margarine, and various confectionery products.
After the kernels are processed, a cake is formed, and it is used in large quantities to feed livestock. Large farms and agricultural holdings are engaged in professional sunflower cultivation, the yield of which depends largely on the degree of soil fertility and the timeliness of fertilizer application.
Phases of sunflower growth and development
The main stages of sunflower organogenesis:
- Germination of the seeds, the emergence of shoots. The hypocotyl and cotyledons grow and appear on the soil surface.
- Budding or the formation of a basket. Emergence of leaves.
- Transition of budding to flowering.
- Maturation and growth of seeds, physiological ripeness.
- Full maturity, economic ripeness.
Sunflowers grow well and actively on fertile soil with a high degree of aeration and plenty of humus. Particularly demanding plant for the presence of nitrogen, phosphorus. These elements contribute to the development of a strong root system and oil formation.
Peculiarities of fertilizer application when growing sunflowers
Potassium affects photosynthesis. It is advisable to apply mono-fertilizer and complex liquid fertilizer with this substance before the beginning of the formation of the basket. Nitrogen and phosphorus are used during the period that lasts from the emergence of seedlings to the formation of the basket. Liquid complex fertilizers are used before sowing and before the flowering and ripening stage.
A feature of sunflower nutrition and cultivation is that organic fertilizers are applied to the soil under the existing crop, while mineral fertilizers are used during the main cultivation. The seed is treated with chelating compounds that stimulate the growth of strong roots and increase the absorption of substances that come with water and subsequent feedings.
Sunflowers grow well only in nutritious and fertile soils. This oilseed crop has a fairly high sodium, potassium, magnesium and sulfur content. Of the micronutrients, sunflowers especially need boron. You can make up for the lack of this substance with the fertilizer Mono-bor. The organochelate form increases the receipt of all the useful substances used at different stages of organogenesis.
Sulfur strengthens defense mechanisms that prevent the death of the plant. It also promotes the complete and efficient absorption of important substances, including phosphorus, nitrogen and potassium.
Agronomists and farm managers pay special attention to the presence of nitrogen in the soil. It is absorbed by the sunflower throughout its growth and development period. Nitrogen accumulates in the leaves, baskets, and stems. This substance promotes protein formation, faster plant growth and reduced risk of disease.
Phosphorus-potassium fertilizers are applied as needed, and also necessarily under autumn autumn autumn plowing. All of the phosphorus in the leaves is then transferred to the sunflower seeds. Organic formulations are better used under a precursor because of the slow mineralization of nitrogen.
To order fertilizers “O-RISE Mono Bor” and complex fertilizer “O-RISE All Inclusive”, as well as get detailed information about the products of the company ” Zoloto Poley ” you can contact the managers of the department of agricultural support by phone *26-01 (free call in Russia).
Articles on the subject – “Mono Bor”, “Organochelate mono fertilizers”, “Chelate fertilizers”, “Leaf nutrition of plants”, “Liquid complex fertilizers with trace elements”, “Seed pre-treatment”.
