COMBINATION FOLIAR FERTILIZER MICRONUTRIENT FERTILIZERS WITH FUNGICIDES AND THEIR EFFECT ON BIOLOGICAL PARAMETERS RED BEET PLANT

Abstract

Study of the influence of different variants of foliar nutrition complex microfertilizers in a mixture with fungicideson the growth and development of red beet in the conditions of the Western-Forest Steppe. Methods. Analysis, synthesis,generalization, field experiment. Results. The results of the research have revealed that foliar feeding with complexmicrofertilizers combined with fungicides influenced the growth and development of plants and the yield of red beet rootcrops in the conditions of the Western-Forest Steppe. Conclusions. The largest area of the leaf surface ensured the foliarnutrition with microfertilizers ADOB macro + micro combined with fungicide Impact in a variety of Harold - 61.46 thousandm2/ha, and Kestrel - 73.06 thousand m2/ha. In variants where integrated fertilizers ADOB macro + micro fertilizers werecombined with Topcin M fungicide, the level of this indicator was within the range of 59.80 and 69.00 thousand m2/hafor Harold and Kestrel varieties, respectively. In the variant, which was used in the foliar nutrition integrated fertilizersIntermag-beet and Sani Mix, in combination with fungicides, the area of the leaf surface was Harold grade 53.57-57.69thousand m2/ha, and Kestrel 65.07-67.67 thousand, m2/ha, and in variants without introducing fungicides - 49.16-53.12 thousand m2/ha, and 62.12-63.19 thousand m2/ha, respectively. Application of complex fertilizers Avangard R Beet in foliarnutrition combined with fungicides had the slightest impact on the analyzed index during the research period. The highestphotosynthetic potential was in the Kestrel variant in the case of a foliar nutrition of ADOB macro + micro in combinationwith Impact fungicide (2.37 million m2 x days/ha). A slightly lower value of this indicator is noted in the variant with theintroduction of fungicide Topsin M - 2,31 million m2 x days/ha, respectively. A similar pattern on the average for 2015-2017was noted in the Harold variety - 1.90 and 1.85 million m2 x days/ha, respectively.The largest yield was characterized by the variant where the foliar application of integrated microfertilizers ADB macro +micro was combined with fungicides Impact and Topsin M with the addition of Harold - 20,4% and Kestrel - 21,7% comparedto control. Somewhat lower yields of root crops were observed at the application of microfertilizers Avangard R Beet,Intermag-Beet and Sani Mix combined with fungicides, namely 55.50-60.10 t/ha Harold and 70.30-73.20 t/ha in varietyKestrel. In general, in the Topsin M variants, the development and prevalence of the disease were more intense than inthe variants of Impact fungicide, which undoubtedly indicates a higher efficiency of this fungicide.Consequently, such application of complex fertilizers combined with fungicides allows not only maximal realization ofbiological potential of plants due to effective assimilation of nutrition elements, but also high potential of productivity due toeffective protection of the foliar apparatus from diseases that reduce its area and efficiency.