DOI 10.36461/NP.2024.70.2.019
UDC 633.15+631.82

SILICON FERTILIZERS AND FORMATION OF CORN YIELDS
S. A. Semina, Doctor of Agricultural Sciences, Professor; I.V. Gavryushina, Candidate of Biological Sciences, Associate Professor; A.S. Paliychuk, Candidate of Agricultural Sciences, E.V. Nikulina, Candidate of Agricultural Sciences; Goryainova O.A., student
Penza State Agrarian University, Russia e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The article presents the results of research on the formation of corn phytomass yield depending on the type of silicon-containing fertilizer and the period of foliar fertilization. The use of silicon-containing fertilizers, depending on the duration and frequency of treatment, contributed to an increase in photosynthetic potential by 9.6-17.8%. A large total leaf surface during the growing season was formed by binary treatment with Nanokremniy and Microvit-6 Silicon, as well as in the variant using Microvit-6 Silicon in the five-leaf stage. However, as the size of the assimilation apparatus increases, a decrease in photosynthesis productivity is noted. A higher yield level of crude phytomass was obtained in variants with Microvit-6 Silicon: with a single treatment, an additional 7.5-8.0 t/ha of green mass was obtained, and with a double treatment, the increase was 12.4 t/ha or 27.6% of the control. Top dressing with Nanokremniy and Kelic Potassium + Silicon in the 7-8 leaf stage contributed 3.1-4.4 t/ha of green mass to the control, and when treated in the five leaf stage, the increase was 1.3-1.9 t/ha. The binary use of Nanokremniy contributed to an increase in the yield of phytomass by 15.6%, and Potassium + Kelic Silicon by 10.3% to the control.
Keywords: corn, silicon-containing fertilizers, top dressing, photosynthesis, yield.

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