THE EFFECT OF SOME ADJUVANTS ON SPRAYS PRODUCED BY AGRICULTURAL FLAT FAN NOZZLES

Six commercially-available agricultural spray adjuvants were mixed wit h water and sprayed through a medium quality flat fan nozzle to evalua te their effect on the spray formation process and droplet size distri butions. Droplet size and velocity distributions were significantly ch anged. Ethokem, which reduced droplet sizes and LI-700, which increase d them, were selected for more detailed study with medium and fine qua lity flat fan nozzles. The adjuvants significantly affected the variat ion of droplet size within the spray and the thickness of the spray fa n. Photographs showed that the mechanism of spray formation was change d by the addition of LI-700 and that droplets containing Ethokem had a ir inclusions. Copyright (C) 1996 Elsevier Science Ltd.