Authors: G. Yu. Rabinovich, Yu. D. Smirnova, N. V. Fomicheva
FRC “Soil Science Institute named after V. V. Dokuchaev”, Moscow, Russia E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The purpose of the research was to determine the most effective technological method of applying the LPB biological preparation on spring wheat crops. Research methodology and methods. Studies were conducted on sod-podzolic soil in 2017–2019 in the Tver region. The composition of the LPB includes agronomically useful microflora (from n×109 to n×1012 CFU/ml), physiologically active substances, a complex of macro- and micronutrients. The following technological techniques were studied: seed treatment before sowing, double foliar treatment of vegetating plants, and combining these techniques. Results. All the studied technological methods of application of LPB contributed to an increase in the yield of spring wheat grain. The highest yield on average for three years of research was obtained by combining the methods of seed treatment with a 1% solution of LPB and foliar treatment plants at a dose of 3 l/ha – 2.96 t/ha (in the control of 2.63 t/ha). The maximum yield is formed primarily by increasing the productivity of stems (95 %). In addition, the use of LPB in all research variants contributed to a significant increase in the number of grains in the ear by 1.2–1.9 PCs, there was a tendency to increase the mass of 1000 grains. Observed an increase in the nitrogen content in the soil in the variants with the introduction of LPB due to the activation of the nitrogen-transforming microflora, which is confirmed by correlations. The increase in nitrogen nutrition of wheat and the biochemical processes that take place in plants under the influence of LFB, led to an increase in the protein content of wheat grain. Scientific novelty. A new promising biological product of the LPB is proposed, for which the most effective agrotechnological method of application for spring wheat crops is selected, which allows to increase the yield of this crop, its quality, as well as improve the agrochemical and microbiological parameters of the soil.
Keywords: spring wheat, biological preparation LPB, seed treatment, foliar treatment, productivity, nitrogen-transforming microorganisms, quality.
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For citation: Rabinovich G. Yu., Smirnova Yu. D., Fomicheva N. V. Issledovanie razlichnykh tekhnologicheskikh priemov primeneniya biopreparata ZhFB na yarovoy pshenitse [Research of various technological methods of application of a biological preparation of LPB on spring wheat] // Agrarian Bulletin of the Urals. 2020. No. 05 (196). Pp. 20‒26. DOI: 10.32417/1997-4868-2020-196-5-20-26. (In Russian.)
