INFLUENCE OF FOLIAR FERTALIZATION BY MICROFERTILIZERS FOR POTATO TUBERS STORAGE

The results of researches on influence of foliar fertilization by microfertilizers on storage of potato tubers are presented. It was noted that the yield of commodity products after storage of tubers in variants, which were introduced in foliar fertilization of Reakom (4.50 kg/ha), on average for three years of studies of Alladin variety was 89.7%, compared with the control variant 86.5%, which is 3.2% higher. Variety Dar with the same variant Reakom (4.50 kg/ha), the output of commodity products after storage is 94.2%, which is higher than the control variant by 2.9%. With regard to the microfertilizers of Crystalone special and Rozasol, the best option for Cristallon special was 2.50 kg/ha, Rozasol  –  3 00 kg/ha, while the yield of tubers in Alladin variety was 88.0% and 88.2%, Dar variety is 93.6% and 92.9%, respectively. Studies have shown that foliar application of microfertilizers positively influenced the qualitative indices of potato tubers during storage in containers in specialized stores. Thus, on average, over three years from the application of microfertilizers during the vegetation period, the loss of dry matter during storage of potato tubers was 1.5-1.8% from Reakom, which is 2.0% compared to the control variant (without processing of plants by microfertilizers). From Cristalon special and Rozasol, the average loss in all variants ranged from 1.9% to 1.7%, while the control was 2.0%. The total loss of starch during storage also decreased from the use of microfertilizers. The loss of starch from the application of Reakom ranged from 3.6% to 4.7%, while in control it was 4.8%. From the application of the microfertilizer Kristalon special loss of starch was 2.9-3.4%, and microfertilizer Rosasol 3.9-4.9%, respectively. Similar indicators were established when storing potato tubers in containers in storage during the autumn-winter period to replace vitamin C