Effect of chemical plant protection products on yield and grain quality of winter wheat in the conditions of Central Non-Chernozem region of Russia

Relevance. The use of phytosanitary means to ensure high and stable yields of winter wheat is one of the tasks of growing winter wheat. Field experiments were conducted in 2021 and 2022 at the Federal Research Center “Nemchinovka” in the central non-chernozem zone of the Moscow region.Methods. The aim of the study is to evaluate the effect of various plant protection preparations on the productivity and quality of winter wheat varieties by intensity levels: basic (the purpose of using the biological potential of the variety by more than 50%), intensive (involving the use of intensive varieties and the creation of conditions for a more complete realization of their biological potential) and high–intensity (a set of measures aimed at ensuring the realization of the potential of the variety is more than 85%). Treatments included fertilizers, pesticides and growth regulators in various combinations and concentrations. Results. Three varieties of winter wheat were studied: Nemchinovskaya 85, Moskovskaya 40 and Moskovskaya 27. Insecticides (Picus 1.0 l/t, Danadim Power 0.6 l/ha, Picus 1.0 l/t + Danadim Power 0.6 l/ha, Picus 1.0 l/t + Vantex 60 ml/ha, Picus 1.0 l/t + Vincit forte 1.5 l/t and Picus 0.7 l/t + Vantex 50 ml/ha), fungicides (Impact Exclusive 0.75 l/ha, Alto Super 0.5 l/ha, Consul, CS 0.8 l/ha + Consul 1.0 l/ha and Consul, CS 0.8 l/ha), herbicides (Aton 0.06 kg/ha + Agroxon 0.5 l/ha + Foxtrot 1.0 l/ha, Exactly Extra 35 g/ha + Foxtrot 1.0 l/ha + Agroxon 0.5 l/ha, Tandem 0.03 kg/ha + Foxtrot 1.0 l/ha, Tandem 30 g/ha + Foxtrot Extra 0.4 l/ha + Agroxon 0.5 l/ha and Lintur 180 g/ha) have confirmed their effectiveness. Nemchinovskaya 85 increased yield by 1.14–3.10 t/ha, Moscow 27 — by 0.64–3.62 t/ha, Moscow 40 — 0,71–3,21 t/ha.