Forming of Technological Quality and Productivity of Sugar Beet as a Result of Action of Modern Fungicides
Actual problem of sugar beet growing in Russia today is damage of leaves of sugar beet by deceases and as a result loses in yield, sugar content and technological quality of roots. One of effective action to protect crop from different fungal deceases is fungicide application. Target of this research was in determination of efficacy modern fungicides with different modes of action, that applied during vegetation of sugar beet and detection of changes in morphological and technological parameters and productivity of the crop after chemical application. Research was conducted during 2018-2019 as a stationary trial of Federal State Budgetary Scientific Institution “The A.L. Mazlumov All-Russian Research Institute of Sugar Beet and Sugar” (Voronezh region). Maximum effect was detected after application of crop protection scheme II, that included double application of vegetating crop of sugar beet with fungicide with combination of active ingredients - pyraclostrobin (62.5 g/l) and epoxiconazole (62.5 g/l). It was founded that independent from background of fertilizers this agronomic method effectively control growth of pathogenic fungal decease as powdery mildew and decrease of severity of decease on 76-85% that came to increase of coefficient of photosynthesis productivity and getting increase in yield on 12.3-13.1 t/ha, increase of planning sugar production on 0.65-1.11 abs,% and gross yield of cleaned up sugar on 2.2-2.4 t/ha. Received data allow recommend product with active ingredients pyraclostrobin+epoxiconazole to broad usage on sugar beet as a systemic fungicide with high prophylactic, curative and physiological activity.