RESUMO -Objetivou-se neste trabalho avaliar a quantidade e qualidade da deposição da calda de pulverização em plantas de Commelina diffusa, considerando volumes de aplicação, pontas de pulverização e o ângulo dos bicos na barra de pulverização. Foram Palavras-chave: volume de aplicação, tecnologia de aplicação, planta daninha.ABSTRACT -The objective of this study was to evaluate the quantity and quality of spray deposition in Commelina diffusa plants, considering application volume, spray nozzles and the angle of the bar of the spray nozzles. Five stems of plants/pot were planted. The experimental treatments were set up on a randomized design with twenty replications. The experiment was carried out under greenhouse conditions and the solution was applied after 40 days of stem transplanting, when the plants were between 30 to 40 cm long (in full development). Five spray nozzles (TX-VK 6 (100 L ha , except for TJ60 11002 VS nozzle. Brilliant blue FDC -1 was used as a tracer solution, with 500 ppm to determine spray deposition. Immediately after application, twenty weed stems were collected, and washed in 100 mL of distilled water for posterior tracer quantification in a spectrophotometer. The data were adjusted to a regression curve, according to the Gompertz model. Independent of the spray nozzle used, the volume of 200 L ha -1 provided the most deposits on the plants, with the TJ60 nozzle being the most outstanding. The XR 11001 VS nozzle (100 L ha -1 ) provided the best uniformity when an angle of +30 o was used.