Tecnologias Aplicadas à Produção de Culturas de Lavoura

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Aplicação de fungicida em diferentes estádios fenológicos na cultura do milho safrinha
(Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, 2021) Vezzosi, Eduardo Filipin; Nora, Douglas Dalla; Nora, Douglas Dalla; Junior, José Maria Tupinamba da Silva; Santos, Railson Schreinert dos
The objective of this work was to evaluate the efficiency and number of fungicide applications at different phenological stages on off-season corn performance, with emphasis on yield. The experiment was conducted from February 18, 2020 to August 4, 2020, in a commercial field, where plots 30 meters long by 28 meters wide were demarcated, each plot 30 meters long with 8 rows of planting, with spacing of 0.5 m, totaling 120 m2. Fungicide applications were carried out at phenological stages V8; VT; R2; V8 + VT; VT + R2 and V8 + VT + R2. In the control treatment, no fungicide application was carried out. The product used was the fungicide containing Fluxapiroxade and Piraclostrobin, at a dose of 350 ml.ha-1 . After harvesting and weighing it can be verified that the plots with a fungicide application in the vegetative stages V8 and VT were the most productive and most profitable in relation to the control where no application was made. Plots where two and three fungicide applications were made did not obtain satisfactory production or profitability.