Yu. V. Frizen, E. V. Nekrasova, T. V. Nozhenko
Omsk State Agrarian University, Omsk, Russia
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Volume 25 No. 12
Date of paper submission: 24.04.2025, date of review: 07.07.2025, date of acceptance: 27.10.2025.
Published: 12/31/2025
Abstract. The purpose is to study the effect of pesticides, in the form of which various active substances are contained, on the degree of weed infestation of crops, field germination, preservation and productivity of Hunter soybeans. Methods. The field experiment was carried out on meadow-chernozem medium-deep low-humus medium-loamy soil in the southern part of the forest-steppe of the Omsk oblast; the predecessor of soybeans was wheat. Scientific novelty. A certain combination of preparations in the integrated soybean plant protection system ensures not only full germination, but also favorable conditions during the growing season, which ultimately has a positive effect on the survival of plants and crop productivity. In the absence of chemical protection, soybean crops are largely suppressed by weeds, with the majority of weeds in the agrophytocenosis belonging to the family of Poaceae, with a predominance of such a species as millet. The herbicide with the active ingredient quizalofop-P-ethyl is more effective in controlling weeds than the herbicide with the active ingredient chlorimuron-ethyl. Results. To ensure high productivity of the soybean in the conditions of the southern forest-steppe zone of the Omsk oblast, it is necessary to use an integrated plant protection system: pre-sowing treatment with the seed dressing agent “Depozit” (1.2 l/t), the first treatment in the phase of 1–3 true leaves with the herbicide “Germes” (1.0 l/ha), the second treatment in the budding phase with the insecticide “Kinfos” (0.3 l/ha) together with the “Ul’tramag Kombi” preparation for legumes (1.0 l/ha), the third treatment after the flowering phase with the fungicide “Vintazh” (0.8 l/ha).
Keywords: soybeans, integrated protection, germination, preservation, yield, crop weed infestation, active ingredient
For citation: Frizen Yu. V., Nekrasova E. V., Nozhenko T. V. Efficiency of the integrated system of soybean crop protection in the forest-steppe conditions of the Omsk region. Agrarian Bulletin of the Urals. 2025; 25 (12): 2101‒2109. https://doi.org/10.32417/1997-4868-2025-25-12-2101-2109 (In Russ.)
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