RESUMO:Este trabalho teve como objetivo avaliar o efeito da tecnologia de aplicação aérea e terrestre de fitossanitários na deposição de calda, na cultura da soja. Avaliou-se, após a aplicação de um traçador, a deposição nas partes inferior e superior do dossel da cultura, por meio de espectrofotometria. O ensaio foi conduzido no delineamento em blocos ao acaso, com quatro repetições e oito tratamentos (formas de aplicação): 1 -Terrestre (Ponta de jato PALAVRAS-CHAVE: tecnologia de aplicação, aviação agrícola, pulverização, Glycine max. SPRAY DEPOSITION ON SOYBEAN CROP IN AERIAL AND GROUND APPLICATIONABSTRACT: This study aimed to evaluate the effect of aerial and ground application technology in spray deposition on soybean crop. It was evaluated the spray deposition on the bottom and the top of the plant canopy, after application of a tracer, by spectrophotometric technique. The experiment was conducted in a randomized block design with four replications and eight treatments (application technologies): 1 -Ground (Hollow cone nozzle-TXA 8002 and 180 L ha . The droplet spectra were also evaluated. It was concluded that ground application with hollow cone nozzle and aerial with rotary atomizers (40 L ha -1 ) were the most effective in promoting the droplet penetration into soybean canopy, although their droplet spectra were more susceptible to drift. The aerial application was technically feasible in spray deposition, compared to ground treatments.
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