Efficacy of air-assist technology and auxiliary boom for fungicide application in soybean fields
Abstract
This study assessed the effectiveness of air-assist technology and auxiliary booms compared to conventional ground boom sprayers in disease control and yield enhancement in soybean (Glycine max) crops. Conducted in Campos Gerais, Paraná State, Brazil over two cropping seasons, the experiment used a randomized block design with four treatments and eight replicates: i) control (no fungicide application on soybean plants), ii) conventional ground boom sprayer, iii) air-assist technology booms, and iv) auxiliary booms sprayers. Analyses focused on disease incidence and severity, plant physiological traits, and yield components. Results indicated that plots without chemical control exhibited higher disease incidence and severity, while fungicide application methods showed no significant differences. Additionally, diseases did not markedly influence the physiological characteristics of the plants. The lack of disease control notably diminished yield potential, but neither auxiliary nor air-assist technologies significantly outperformed the conventional sprayer in enhancing crop yield parameters.
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