Deposition, Endo-drift and Exo-drift in the Pulverization in Coffee With Different Equipment

Tamara Locatelli, Silvério de Paiva Freitas, Ismael Lourenço de Jesus Freitas, Edney Leandro da Vitória, Sávio da Silva Berilli, Sílvio de Jesus Freitas, Silvério de Paiva Freitas Júnior, André Cayô Cavalcanti, Tallita Pedroni Locatelli, Juliana Menegassi Valle, Giacomina Possatti Lepaus and Deborah Hoffman Crause

Journal of Agricultural Science, 2024, vol. 11, issue 17, 187

Abstract: The objective was to evaluate the equipment efficiency in reducing drift and increasing the spray deposition. The experiment was conducted of the conilon coffee plantation, located on the experimental area of the Federal Institute of Espirito Santo, Itapina, Brazil. The experiment was a randomized complete block design with four replications. The treatments consisted- a knapsack sprayer with electrostatic assistance, an electric knapsack sprayer, a knapsack sprayer with a spray shield, and a knapsack sprayer without a spray shield. All sprayers were equipped with a single spray nozzle. Spray deposition was evaluated on wee leaves using a food colourant as a tracer. The knapsack sprayer with electrostatic assistance was the most efficient equipment, providing lower values of drift, and the greatest deposition on the weeds. It is recommended to use the electrostatic sprayer, as it showed greater efficiency in the application of the product on the target, using smaller volume

Date: 2024
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