Affiliation:
1. Татарский научно-исследовательский институт сельского хозяйства – обособленное структурное подразделение ФИЦ КазНЦ РАН
2. Tatar Scientific Research Institute of Agriculture - separate structural subdivision of “Federal Research Center “Kazan Research Center of the Russian Academy of Sciences”
Abstract
The purpose of the work is to identify effective factors, that reduce the spread of the complex of diseases on tubers and contribute to obtaining maximum potato productivity. It was revealed that the causative agents of ordinary scab and rhizoctoniosis had a similar reaction - their prevalence decreased with the use of fertilizers, growth regulators, but increased with the use of the studied microbiological preparations, as well as Maksim fungicide, due to the high ability of these pathogens to develop resistance. The prevalence of ordinary scab also decreased on irrigation, rhizoctoniosis - on irrigation against an increased background of fertilizers. It was revealed that the prevalence of dry rot, silver scab decreased with the use of microbiological preparations, Maksim fungicide, growth regulators and increased with the introduction of the studied fertilizer compositions. From the spread of dry rot, in addition, irrigation and a high fertilizer background were effective. The effectiveness of all biologically active preparations (Рсп 9-17%) is very high from the spread of silver scab on the dehydrator, but Maxim treatment (Рсп 25-35%) is more effective on irrigation. It was revealed that the prevalence of powdery scab decreased with the use of BAP, fertilizer compositions, and increased with an increase in the background of fertilizers. The spread of wireworm injuries decreased under the influence of most of the studied factors, increased with the introduction of Kalimag and treatment with Akvaring. KMG on drylands increases the prevalence of common scab, dry rot, wireworm. Organic and mineral fertilizer is distinguished by a stabilizing effect on the spread of common scab, dry rot and wireworm damage. The most comprehensive protection against damage to tubers by diseases and wireworms was provided by growth regulators with the properties of increasing the internal resistance of plants. It was revealed that a decrease in potato yield was accompanied by an increase in the spread of pathogens of common scab and rhizoctoniosis, powdery scab, and fusariosis. To obtain maximum potato productivity with minimal damage to tubers by diseases and wireworms, it is recommended to grow potatoes under irrigation against the background of fertilizers N100P120K120 with potato processing with a new generation growth regulator Zircon.
Publisher
Infra-M Academic Publishing House
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