Fuente: Revista Ceres Silva, Emanoel Rolim Farias Da;

Pavão, Luiz Felipe Silveira;

Farias, Marcelo Silveira De;

Sgarbossa, Jaqueline;

Maldaner, Ivan Carlos;

Pes, Luciano Zucuni;



ABSTRACT The use of spraying drones in agricultural crops has become a recurring practice on rural properties. In this context, this study aimed to evaluate the influence of different spraying equipment and flow rates on the agronomic performance of second-season soybean crop. The experiment was conducted in the experimental area of the Polytechnic College, Federal University of Santa Maria, under the experimental design of randomized blocks, in a 3×2 factorial, with three spraying equipment (DJI T16 drone, DJI T40 drone and MF 8225 self-propelled sprayer) and two flow rates for each equipment (10 and 15 L ha-1 for drones and 50 and 100 L ha-1 for self-propelled sprayer). For drones, application rates of 10 and 15 L ha-1 were classified as low and high, respectively, whereas for the self-propelled sprayer, application rates of 50 and 100 L ha⁻¹ were classified as low and high, respectively. The evaluated variables were number of pods per plant, number of grains per plant, thousand-grain weight, and grain yield. ANOVA indicated no significant interaction between application rates × equipment, with no significant main effects observed. It was concluded that both drones and the self-propelled sprayer, regardless of the application rate, ensured similar soybean crop performance.