UDC 633.31/.37:631.8
DOI 10.36461/NP.2024.72.4.011

EFFECT OF TRACE ELEMENTS (Zn, Cu, Mo) ON GROWTH AND YIELD OF GREEN PEAS
Yu.V. Blinokhvatova, Candidate of Biological Sciences, Associate Professor,
A.V. Nushtaeva, Candidate of Chemical Sciences, Associate Professor,
N.V. Ozerova, Candidate of Biological Sciences, Associate Professor,
N.P. Chekaev, Candidate of Agricultural Sciences, Associate Professor
Federal State Budgetary Educational Institution of Higher Education "Penza State Agrarian University", Penza, Russia, tel. tel. 8(8412) 62-83-67, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The results of laboratory, vegetation, and field experiments on the effect of a single treatment of green peas, the Joker variety, with aqueous solutions of zinc chloride ZnCl2 or zinc sulfate ZnSO4 on seed germination, plant growth, and crop structure are presented. In laboratory and vegetation experiments, a positive effect of zinc concentration of 10-70 ppm (when wetted with a sufficiently large amount of solution) on laboratory germination of seeds, the average length of roots and seedlings, as well as the intensity of accumulation of vegetative mass was revealed. The optimal concentration of Zn2+ ions in our experiments was 30 ppm, which corresponds to 50 g/t in terms of seed weight. At the initial stages of ontogenesis (within 1-2 weeks), ZnCl2 showed the best results, but ZnSO4 was more effective for further development during the period of intensive plant growth. In the field experiment, before sowing, pea seeds were treated with a ZnSO4 solution with a concentration of Zn2+ 2.5 g/l ions at the rate of 2% of the seed weight (corresponds to 50 g/t of seeds). Field studies have revealed the positive effect of zinc ions, as well as zinc with the addition of copper and molybdenum ions on the crop structure. Treatment of pea seeds with zinc and zinc with additives (Zn + Cu, Zn + Mo, Zn + Cu + Mo) slightly increased field germination, but their application had a fairly good effect on the yield structure. The best results were shown by experimental samples of Zn + Cu + Mo, in which the mass of seeds from one plant increased by 25%, yield by 20%, and the mass of 1000 seeds by 21% compared with the control.
Keywords: trace elements, zinc, laboratory germination, germination ener-gy, growth force, crop structure.

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