A.V. Bobrovskiy, A.A. Kryuchkov
Krasnoyask Research Institute of Agriculture, prosp. Svobodnyi, 66, Krasnoyarsk, 660041, Russian Federation
Summary. The investigations were carried out under conditions of the forest-steppe zone of Krasnoyarsk Krai on ordinary chernozem in 2013–2014. We studied a scheme of plant protection of potato ‘Tuleevsky’ and ‘Tanaj’, composed of Prestizh protectant, Zenkor Ultra herbicide, Infinito and Sektin Fenomen fungicides. The aim of the study was to evaluate the influence of the system of chemical plant protection on productivity, phytosanitary properties and yield quality of potato under soil and climatic conditions of the forest-steppe zone of Krasnoyarsk Krai. The studied scheme of potato protection allowed to reduce the damage of potato tubers by bare patch and scab by 6.9 % and 7.4 %, respectively, for Tanaj variety. It also decreased the damage by bare patch, scab, and skin necrosis by 12.1 %, 1.1 %, and 7.1 %, respectively, for Tuleevsky variety. Prestizh protectant significantly reduced the damage from diseases, which is valuable for seed plantations. The application of Zenkor Ultra herbicide provided protection from weeds (Chenopodium album, Amaranthus retroflexus, Avena fatua, etc.) until the harvesting; the protective effect on average amounted 69.5 % in 2013 and 87.5 % in 2014. The application of Infinito and Sektin Fenomen fungicides significantly reduced the degree of injury of above-ground part of potato by late blight. The damage from this disease was 8.4 % for Tanaj variety and 10.9 % for Tuleevsky variety; which was lesser by 33.9 % and 27.6 %, correspondingly, than in the control variant. The application of the presented scheme of potato protection allowed to increase the potato yield from 15.5 t/ha to 31.4 t/ha for Tanaj variety and from 15.1 t/ha to 24.1 t/ha for Tuleevsky variety.
Keywords: potato, plant protection, tuber protectant, herbicides, fungicides, yield quality, yield.
Author Details: A.V. Bobrovskiy, Cand. Sc. (Agr.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); A.A. Kryuchkov, senior research fellow.
For citation: Bobrovskiy A.V., Kryuchkov A.A. Influence of Chemical Plant Protection on Productivity, Phytosanitary Properties and Yield Quality of Potato under Conditions of the Forest-Steppe Zone of Krasnoyarsk Region. Dostizheniya nauki i tekhniki APK. 2016. V. 30. No 6. Pp. 59-62 (in Russ.).