Agriculture and forestry

Polishchuk Mikhaylo Ivanovuch – Candidate of Agricultural Sciences, Associate Professor of the department of agriculture, soil science and agrochemistry of the Vinnytsia National Agrarian University (21008, Vinnytsia, Solnychna St., 3. Е-mail: polishchuk.mikhaylo@ukr.net).

The results of research on the influence of mineral fertilizere and bacterial preparations on the processes of plant growth and development, elements of productivity of winter wheat in the conditions of the Forest-steppe of the Right Bank, on gray forest soils are presented. The researches on the basis of the USEC

(Ukrainian scientific-educational Consortium) have established that Agat-25 and Biocomplex-r in the early stages of development caused more intensive and accelerated development of winter wheat against the background of estimated doses of mineral fertilizers, which ultimately led to lengthening of the autumn tillering phase for 2-3 days and accordingly contributed to the formation of more shoots. Bacterial preparations allow us to give a stable increase in grain yield, similar to the application of minor rates of mineral fertilizers. The most effective biological product showed Biocomplex-r increase in yield compared to the control was 0.86 t/ha.

Concerning mineral fertilizers, the highest yield in the Podolanka variety was obtained on the version of the experiment where the N60P30 was introduced, the increase in yield compared to the control was 1.36 t/ha. Bacterial preparations and mineral fertilizers provide an increase in the nature and vitality of the grain as well as the content of gluten. At the same time, the most effective was shown by the bacterial drug Biocomplex-r in comparison with the Agat-25 preparation. As for mineral fertilizers, the highest increments were obtained on the version of the experiment where the application of mineral fertilizers in the norm was N60P30.

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