The article highlights the issue of optimizing the nutrition of soybean plants under irrigation using phosphogypsum ameliorant and foliar treatment with organomineral fertilizer OMEK Universal. As a result of three years of research in the Saratov Left Bank zone, it was revealed that the application of phosphogypsum in various doses reduces soil density to 1.21 g/cm3. The combined use of phosphogypsum at a dose of 4 t/ha and foliar feeding with OMEK Universal at a dose of 0.6 kg/ha increases soybean yield to 2.85 t/ha, protein content - up to 47.95%, fat - up to 19.0 % with a profitability level of 267.44 %.
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Poletaev et al. (2024) studied this question.
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