Askarov V. Productivity of new generation sugar beet hybrids for the use of complex microfertilizers and fungicides in the Forest-Steppe of Ukraine

The dissertation is devoted to the decision of an important scientific issue concerning the influence of different variants of foliar fertilization by microfertilizers in combination with the use of modern plant protection means for growth, development, yield and quality of emergency machinery of sugar beet hybrids. According to the results of the research, for the first time in the conditions of the Central Forest-Steppe of Ukraine, the effectiveness of the use of new combined microfertilizers on the chelates basis for foliar fertilization in combination with the use of fungicides for preventive spraying of crops against diseases of the puffer apparatus was established, which ensured the yield of root crops at the level of 70-80 t/ha with high Technological qualities. It has been experimentally established that the use of the complex microfertilizer Ca+micro + Bor+Molybdenum + Micro Buriak in the hybrids Olzhych, and its protection against diseases of the puffer apparatus with fungicide Falcon yields 66.7 t/ha sugar beet. A similar scheme of microfertilizers using Alto Super fungicide yields 68.0 t/ha, while the Bulava hybrid is 82.1 and 83.7 t/ha respectively. It was determined that using the microfertilizer complex Ca+micro + Bor+Molybdenum + Micro Buriak and fungicides the maximum sugar collection in both studied hybrids was obtained. For the use of fungicide Alto Super received a collection of 12.1 and 14.8 t/ha sugar. For the processing of sugar beet plants, the sugar beet mix Ca+micro + Bor+Molybdenum + Micro Buriak with the use of Alto Super earned a profit of 16399 UAH/hectare, which provided the maximum indicators of the profitability level of sugar beet bluish Bulava, respectively, 65.6 %. The maximum energy efficiency coefficient (4.39) was obtained by using a complex application of the mixture of microfertilizers and Alto Super fungicide. Keywords: sugar beets, hybrids, microfertilizers, foliar nutrition, fungicides, sugar beet diseases, yield and technological qualities of root crops.