Влияние регуляторов роста нового поколения на урожайность озимой пшеницы

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In the formation of grain crops, an important place is given not only to the problem of nutrition, but also to the ability to manage the processes of growth and development in order to fully realize the vital potential of plants. Therefore, the introduction of new progressive technologies with the use of growth regulators is highly relevant, as it will allow to obtain stable yields of grain crops of good quality even under adverse weather conditions. The purpose of the research was to identify the effectiveness of using new generation growth regulators in the cultivation of winter wheat with different seeding rates, as one of the elements of agricultural technology in the conditions of the Central region of the Non-Chernozem zone of the Russian Federation. The research was carried out in 2021-2024 at the experimental field of the laboratory of technology for the cultivation of winter cereals and fertilizer application systems of the Technological Center for Agriculture of the Nemchinovka Agricultural Center (Moscow region, Marushkinskoye settlement of Moscow, Sokolovo village). The maximum photosynthetic potential was set in the variant with the combined use of Moddus with Anti-leaching at a seeding rate of 550 pcs/m2 and was equal to 2784 thousand m2 day/ha, that is, 538 thousand m2 day/ha more than the minimum value, in the control variant without the use of growth regulators with a seeding rate of 500 pcs/m2. The maximum amount of dry biomass was set on the variant with the combined use of a Moddus with an Anti-leaching agent at a seeding rate of 550 pcs/m2 and was 10.35 t/ha, that is, 2.79 t/ha more than the minimum value. The maximum net photosynthesis productivity was set for the Moddus variant with a seeding rate of 550 pcs/m2 and was equal to 1.56 g/m2 per day. The maximum economic yield of winter wheat on average for 2022-2024 was set on the option of joint application of Moddus with Anti-leaching at a seeding rate of 550 pcs/m2 and was equal to 7.47 t/ha, that is, 1.36 t/ha more than the minimum value.