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

• Main Author: Ovcharuk V. I.
• Format: Article
• Language: English
• Published: Uman National University of Horticulture 2019-01-01
• Series: Вісник Уманського національного університету садівництва
• Subjects: red beets; roots; foliar nutrition; variety; leaf area
• Online Access: http://visnyk-unaus.udau.edu.ua/assets/files/articles/2019/1/16.pdf
• ISSN: 2310-046X; 2310-0478

Study of the influence of different variants of foliar nutrition complex microfertilizers in a mixture with fungicides on 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 complex microfertilizers combined with fungicides influenced the growth and development of plants and the yield of red beet root crops in the conditions of the Western-Forest Steppe. Conclusions. The largest area of the leaf surface ensured the foliar nutrition with microfertilizers ADOB macro + micro combined with fungicide Impact in a variety of Harold – 61.46 thousand m2/ha, and Kestrel – 73.06 thousand m2/ha. In variants where integrated fertilizers ADOB macro + micro fertilizers were combined with Topcin M fungicide, the level of this indicator was within the range of 59.80 and 69.00 thousand m2/ha for Harold and Kestrel varieties, respectively. In the variant, which was used in the foliar nutrition integrated fertilizers Intermag-beet and Sani Mix, in combination with fungicides, the area of the leaf surface was Harold grade 53.57-57.69 thousand m2/ha, and Kestrel 65.07-67.67 thousand, m2/ha, and in variants without introducing fungicides – 49.16-53.12 nutrition combined with fungicides had the slightest impact on the analyzed index during the research period. The highest photosynthetic potential was in the Kestrel variant in the case of a foliar nutrition of ADOB macro + micro in combination with Impact fungicide (2.37 million m2 x days/ha). A slightly lower value of this indicator is noted in the variant with the introduction of fungicide Topsin M – 2,31 million m2 x days/ha, respectively. A similar pattern on the average for 2015-2017 was 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% compared to 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 variety Kestrel. In general, in the Topsin M variants, the development and prevalence of the disease were more intense than in the 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 of biological potential of plants due to effective assimilation of nutrition elements, but also high potential of productivity due to effective protection of the foliar apparatus from diseases that reduce its area and efficiency.