Pesticide dispersion modelling during spraying

Abstract

Study of pesticide dispersion within the environment is very complex. Experimental methodologies are unsatisfactory from the point of view of cost and reliability due to the manpower require and the variability of environmental conditions. Modelling approach allows phenomena to be separated, environmental and injection parameters to be varied through appropriate boundary conditions, and numerous experiences to be reproduced within limited time. Modelling dispersion within canopies focused on the effect of the crop features on the airflow behaviour and droplet cloud dispersion. Preliminary studies of leave movement in front of the airflow of an air-assisted sprayer were conducted and will be improved. Furthermore, pesticide dispersion within the air will be studied through air/droplet interactions.