@article{Moldovan_Moldovan_2022, title={INFLUENCE OF FOLIAR TOP DRESSING ON THE FORMATION OF BIOMETRIC INDICATORS OF SOYBEANS AT DIFFERENT LEVELS MINERAL NUTRITION}, volume={47}, url={https://snaubulletin.com.ua/index.php/ab/article/view/640}, DOI={10.32845/agrobio.2022.1.12}, abstractNote={<p>One of the important aspects of soybean cultivation is to provide it with not only macronutrients nitrogen, phosphorus, potassium, calcium and sulfur, but also trace elements boron, molybdenum, copper, zinc, iron, manganese, cobalt and magnesium. Lack of them reduces yields, causes disease, impairs seed quality. The article presents the results of research on the effect of growth stimulator Vimpel and liquid fertilizers Oracle on growth processes and the formation of indicators of individual productivity of plants at different levels of mineral nutrition. The following methods were used in the research: field, morphological, physical, comparative and computational. Based on the calculations and observations, it was found that in the Western Forest-Steppe on podzolic chernozems foliar soybean fertilization in the phase of 2–3 leaves and the beginning of budding had a direct impact on the growth of vegetative mass, formation of beans per plant, bean seeds and weight of 1000 seeds. In particular, foliar fertilization with growth stimulants and microfertilizers, at different levels of mineral nutrition, led to an increase in plant height by 3.4–16.9%, while the height of attachment of the lower bean decreased by 3.3–20.7%. There was a tendency to increase the number of beans per plant, on average, by 6.1–48.5% compared to the control, while fluctuations in the number of seeds in beans were insignificant and, on average over the years, this figure was 2.2–2.4 pcs. Foliar fertilization provided an increase in the mass of 1000 seeds, at different levels of mineral nutrition, from 124.0–128.3 g in the control to 131.1–137.8 g – for treatment of crops in the phase of 2–3 leaves growth stimulator Vimpel and 141.3–148.8 g – for double treatment of crops in the phase of 2–3 leaves and the beginning of budding with a complex of drugs. The highest indicators of individual productivity (number of beans per plant, seeds per bean and weight of 1000 seeds) at all levels of basic mineral nutrition, on average over the years of research, were obtained in the variant where : Vimpel, 0.5 l/ha + crop treatment in the budding phase: Vimpel, 0.5 l/ha + Oracle boron, 1.0 l / ha + Oracle sulfur, 2.0 l/ha + Oracle zinc, 1.0 l/ha. The maximum number of beans per plant (49 pieces), seeds in beans (2.3 pieces) with a weight of 1000 seeds 148.7 g was formed by soybean plants at the level of basic mineral nutrition N48P48K48.</p&gt;}, number={1}, journal={Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology}, author={Moldovan, Zh. A. and Moldovan, V. H.}, year={2022}, month={Jul.}, pages={91-96} }