INFLUENCE OF LIQUID COMPLEX FERTILISERS AND GROWTH REGULATOR "BIOGLOBIN" ON THE PRODUCTIVITY OF POTATO PLANTATIONS IMPROVED BY BIOTECHNOLOGICAL METHOD IN THE CONDITIONS OF SOUTHERN POLISSYA OF UKRAINE

The efficiency of potato seed production directly depends on the quantitative yield of standard planting tubers at each stage of reproduction. Therefore, the creation of conditions for active tuberization and the formation of the maximum amount of seed fraction in the cultivation technology is the main factor in increasing the multiplication rate, especially for improved potatoes created by biotechnology. The research aimed to determine the effect of dissolved complex fertilizers and plant growth regulator, when used together, as active factors of potato growth and development, especially in the absence of moisture during critical periods of vegetation. The results of three years of research have shown the advantage of dissolved NPK 16:16:16 at a rate of 5 c/ha and 1 l/ha of Bioglobin over granular NPK 16:16:16 when applied locally. In particular, the leaf surface area increased by 13%, plant height by 3%, tuber yield by 78 thousand pieces per 1 ha, and total yield by 30%. The growth of seed tubers, the main product of the seed industry, averaged 19%. The improved fertilization system for seed potatoes provides a 24% increase in economic efficiency.