Novikova Irina, Minin Vladislav, Titova Julia, Zakharov Anton, Krasnobaeva Irina, Boikova Irina, Murzaev Evgeniy
All Russia Research Institute for Plant Protection Federal State Budget Scientific Institution (FSBSI VIZR), 196608 Saint-Petersburg, Russia.
Branch of Federal State Budgetary Scientific Institution Institute for Engineering and Environmental Problems in Agricultural Production (FSBSI FSAC VIM), 196625 Saint-Petersburg, Russia.
Plants (Basel). 2022 Apr 1;11(7):962. doi: 10.3390/plants11070962.
To increase the organic potato yield, it is necessary to provide the crop with sufficient nutrients and effective means of biocontrol the diseases. The research goal was to characterize the biorationals' efficacy to achieve competitive organic potatoes' yield under various weather conditions. A 4-year trial was carried out in the Leningrad region using Udacha variety potatoes. The tests used liquid forms of new polyfunctional biologicals Kartofin based on highly active I-5-12/23 and organic fertilizer BIAGUM obtained from poultry manure by aerobic fermentation in a closed biofermenter. Significant stimulation in plant growth and development to the flowering phase regardless of the hydrothermal conditions of the growing season was noted. The stimulating effect was determined by the combined use of biorationals pro rata to BIAGUM dose. Kartofin biologicals and BIAGUM almost doubled the potato tubers' yield compared to the control, regardless of the growing season conditions. At the flowering phase, the biological efficacy in potato fungal diseases incidence and development was near 90% under optimal and 50-75% under drought hydrothermal conditions. At the end of vegetation, the efficiency in fungal diseases incidence and development made up 45-65% under optimal and 45-70% under dry conditions. BIAGUM effectiveness in reducing disease development reached 45-50% regardless of growing season conditions.
为提高有机马铃薯产量，有必要为作物提供充足的养分和有效的病害生物防治手段。研究目标是确定在不同天气条件下，生物源产品对实现具有竞争力的有机马铃薯产量的功效。在列宁格勒地区对乌达恰品种马铃薯进行了为期4年的试验。试验使用了基于高活性I-5-12/23的新型多功能生物制剂Kartofin的液体形式，以及通过在封闭生物发酵罐中对禽畜粪便进行好氧发酵获得的有机肥料BIAGUM。无论生长季节的水热条件如何，均发现对植物生长和发育有显著刺激作用，直至开花期。刺激作用取决于生物源产品与BIAGUM剂量按比例联合使用。无论生长季节条件如何，与对照相比，Kartofin生物制剂和BIAGUM使马铃薯块茎产量几乎翻了一番。在开花期，在最佳水热条件下，对马铃薯真菌病害发生和发展的生物防治效果接近90%，在干旱水热条件下为50-75%。在植被生长末期，在最佳条件下，对真菌病害发生和发展的防治效果为45-65%，在干旱条件下为45-70%。无论生长季节条件如何，BIAGUM在减少病害发展方面的有效性达到45-50%。
