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2019, N 4 (38) |
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GENERAL AGRICULTURE, PLANT GROWING
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Nesterova E., Gromakov A., Turchin V. |
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Joint application of mineral fertilizers and growth regulators in the cultivation of sunflower in the Lower Don |
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The article considers the results of two-year studies on the influence of growth regulators and mineral fertilizers on the productivity of seeds of early-ripening sunflower hybrid in the Lower Don. The positive effect of mineral fertilizers, growth regulators and their joint application on the yield of sunflower seeds has been established. On average, for 2 years, the application of mineral fertilizers increased the yield of sunflower oil seeds by 0.28-0.55 t / ha. The use of growth regulators led to an increase in sowing productivity by 0.52-1.39 t / ha. The joint use of mineral fertilizers and growth regulators gave the maximum positive effect-the excess of the control variant in yield was 0.63-1.80 t / ha. the Highest yield (3.99 t / ha) in the experiment was obtained with foliar fertilizing of crops with Mizorin and pre-sowing application of mineral fertilizers at a dose of N50P50S20.
Keywords: SUNFLOWER, MINERAL FERTILIZERS, GROWTH REGULATORS, ORDINARY CHERNOZEM, PRODUCTIVITY |