Application of the agrochemical "Tatfarmat (marka A)" on potatoes

Relevance. With the increasing interest of agricultural producers in biological farming, there is a need to provide farmers with affordable and effective biological preparations. In the current realities, under the conditions of sanctions, special attention should be paid to domestic manufacturers of biological products.Methods. The effectiveness of the use of a new microbiological fertilizer "Tatfarmat (marka A)" for presowing treatment of potato tubers of the Salsa variety of domestic selection was evaluated. The experiment was carried out on gray forest soil. We studied such indicators as potato yield, the number of tubers (from 1 bush and from 1 m2), the average mass of marketable tubers (from 1 bush and from 1 m2), the fractional composition of tubers (in %) and the content of starch and vitamin C in tubers.Results. The positive effect of the biopreparation "Tatfarmat (marka A)" on the quantitative and qualitative indicators of potatoes was revealed. The yield in the variants with the use of microbiological fertilizer increased by 4.9–14.8% compared to the control, the number of tubers (from 1 m2) — by 7.8–46.9%, the average mass of marketable tubers (from 1 m2) — by 11.4–33%. The share of seed and food fractions of tubers increased by 0.5–3.6% and 1.5–3.1%, respectively. There was an increase in the content of starch in dry matter by 0.7–4.7%. The content of vitamin C in tubers increased by 9–19%. 