Agriculture and forestry

Didur Ihor – Candidate of Agricultural Sciences, Associate Professor, leading researcher, Dean of the Faculty of Agronomy and Forestry of Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3, didurihor@gmail.com).

Tsyhanskyi Viacheslav – Candidate of Agricultural Sciences, Senior lecturer of the Department of Plant Production, Selection and Bioenergetic Cultures of Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3).

At the present stage of development of agricultural production with the maximum intensification of technological methods of growing crops, fertilizer system is one of the most expensive methods of agricultural technology, based on this we can say that the food system should be optimized. In recent years, biological products of various mechanisms of action are in increasing demand among farmers. Particular attention is paid to complex preparations based on potassium humate, one of which is "Humifrend" and organo-mineral fertilizers such as "Helprost Sunflower". These drugs accelerate the flow of nutrients and increase the rate of their use, enhance the fungicidal and growth-promoting properties of soil microflora due to the introduction of beneficial microorganisms, enhance the synthesis of proteins, carbohydrates and vitamins in plants, increase plant resistance to environmental factors and negative factors plants, increase yields and quality of agricultural products. Based on the research, it was found that biological drugs influenced not only the formation of vegetative organs of sunflower hybrid plants, but also changes in generative organs, in particular the formation of individual productivity. This article presents the results of research with individual and combined use of biological products Humifrend and Helprost sunflower produced by BTU Center. It is established that the maximum efficiency in the formation of biometric indicators was provided by the joint use of Humifrend + Helprost sunflower. In this embodiment, the average diameter of the basket in the hybrid Neoma was 18.4 cm, and in Colombo - 17.5 cm, leaf surface area in the flowering phase, respectively 100.6 and 110.0 dm2 / plant, weight of 1000 seeds 60, 7 and 70.6 g and yields of 3.32 and 2.78 t / ha.

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