Abstract
The work presents the results of studying the development of leaf diseases on soft spring wheat. The damage to plants was largely determined by the hydrothermal conditions of the crop vegetation, agricultural technology, and the applied plant protection products. Fungicidal treatment of crops with the chemical Abacus Ultra in the phase of entering the tube allowed to significantly reduce the development of infection on the upper layer of leaves: with brown rust to 0.2%, septoria - up to 0.3-0.7% and powdery mildew - up to 0.1-0.7%. Net income amounted to 28.228 – 38.609 rubles/ha, profitability 152-207%.
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