UDC 631.81.095.337+633.63
DOI 10.36461/NP.2025.75.3.005

COMPLEX MICRONUTRIENT FERTILIZERS AS A FACTOR IN REGULATING SUGAR BEET YIELDS
E.V. Zheryakov¹, Candidate of Agricultural Sciences, Associate Professor,
S.A. Semina¹, Doctor of Agricultural Sciences, Professor,
S.M. Nadezhkin², Doctor of Biological Sciences, Professor, I.S. Zheryakov¹, Postgraduate
¹Federal State Budgetary Educational Institution of Higher Education "Penza State Agrarian University", Penza, Russia e-mail This email address is being protected from spambots. You need JavaScript enabled to view it.
²Federal State Budgetary Scientific Institution "Federal Scientific Center of Vegetable Growing", Moscow

The purpose of the study was to investigate the effect of foliar application of micronutrient fertilizers on the yield formation of sugar beet genotypes in the forest-steppe conditions of the Middle Volga region (Penza Oblast). Under the forest-steppe conditions of the Middle Volga region, on leached, moderately deep, medium loamy chernozem, the effect of foliar fertilization with the microfertilizers – POLYDON BORON, POLYDON ZINC, POLYDON MOLYBDENUM, and POLYDON MANGANESE – on the yield of different sugar beet hybrids (RMS 121 (N type), Predator (E type), and BTS 590 (Z type)) was studied. The studies showed that micronutrients had the most significant effect on increasing root mass at the early stages of sugar beet development. The Z type hybrid showed the best response to additional micronutrient application throughout the growth period, while the E type hybrid showed the least increase. In decreasing order of influence on average daily weight gain of the root crop, the microfertilizers were as follows: POLYDON BORON, POLYDON MANGANESE, POLYDON MOLYBDENUM, and POLYDON ZINC. The maximum yield increase, regardless of the genetic characteristics of the hybrid, was observed with POLYDON BORON (6.96–7.13 t/ha) compared to the control without fertilizer, and the Z type hybrid was the most responsive to this fertilizer. The efficiency of POLYDON MANGANESE fertilizer was slightly lower, providing yield gains of 5.43 to 5.74 t/ha, which is 10.0–12.1% higher than the control.
Keywords: sugar beet, hybrids, micronutrient fertilizers, root crop weight, yield.

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