Uman National University | today: 05/20/2026
| Author(s) |
Карпенко В.П., , , Prytulyak R.M., Candidate of Agricultural Science, Associate Professor of Department of Biology, Uman National University of Horticulture, Ukraine Nevlad V.I., Candidate of Agricultural Sciences, Head of the Department of Agrochemistry and Soil Science, Uman National University of Horticulture, Ukraine |
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| Category | The Agronomy | ||
| year | 2026 | issue | Issue 108 part 1 |
| pages | 8-16 | index UDK | [633.37:631.461.5]-042.75]:631.86 | DOI | 10.32782/2415-8240-2026-108-1-8-16 (Link) |
| Abstract | The aim of the study was to determine the effect of the biological preparation Bioneostim (1.0 l/t) used in various ways with the biological preparation with regulatory properties Vermistim D (seed treatment before sowing – 7.0 l/t, crop spraying – 8.0 l/ha) on the number and mass of Rhizobium leguminosarum nodules in the root system of the sowing plant, net photosynthetic productivity and grain yield. The results of studies on the effect of the biological preparation Bioneostim (1.0 l/t) used in various ways with the biological preparation with regulatory properties Vermistim D (seed treatment before sowing – 7.0 l/t, crop spraying – 8.0 l/ha) are presented. on the number and mass of Rhizobium leguminosarum nodules in the root system of the sowing plant, net photosynthetic productivity and grain yield. The relevance of the study is due to the fact that the main task of agricultural production is to increase the productivity of crops with minimal use of pesticides or their complete restriction. In this regard, scientific developments that reduce the negative impact on crops, soil and the environment are of paramount importance. The research was conducted in field and laboratory conditions at the Department of Biology of Uman National University during 2024–2025. The effect of the biological preparation Bioneostim and the biological preparation with regulatory properties Vermistim D was studied in crops of the Ivolha variety. Field experiments were conducted using a systematic method with three repetitions. Crops in the stem elongation phase were sprayed with Vermistim D at a rate of 8.0 l/ha, based on a working mixture consumption rate of 200 l/ha. It was found that Bioestim and Vermistim D had a positive effect on the development of the Lathyrus–Rhizobium symbiotic system, net photosynthetic productivity, and grain yield. The highest indicators studied were noted with the combined use of Bioneostim at a rate of 1.0 l/ha and Vermestim D at a rate of 7.0 l/t for seed treatment before sowing, followed by spraying Vermestim D at a rate of 8.0 l/ha on this crop background, which, on average over the years of research, ensured an increase in the number of tubers per development phase by 18–25 pcs/plant, their weight by 25.9–229.4 mg/plant, net photosynthetic productivity by 0.57 g/m2 per day and grain yield by 0.50 t/ha. | ||
| Key words | grass pea, biological preparation, Lathyrus–Rhizobium symbiotic apparatus, net photosynthetic productivity, yield | ||