ISHS Acta Horticulturae 422: International Conference on Integrated Fruit Production
DEPOSIT AND LOSS OF SPRAY IN ORCHARD AS AFFECTED BY SPRAY DISCHARGE SYSTEM AND AIR JET SETTING. |
| Authors: | G. Doruchowski, R. Holownicki, A. Godyn |
| Keywords: | air-assisted application techniques, spray deposit, off-target loss |
| Abstract:
Three sprayers: conventional, cross-flow and directed air jet were used in orchard to compare spray deposit within the canopy of apple trees and off-target loss obtained at different air jet settings. Each of three sprayers was set at two air jet parameters and three spray volumes: 150, 200 and 300 1/ha. The highest spray deposit and the lowest loss were obtained for directed air jet sprayer. Increase in velocity and volume of air jet caused higher deposit in the canopy but, for cross-flow sprayer, also higher loss of spray. The off-target loss caused by conventional sprayer was higher than that from the other sprayers. No significant effect of air jet settings on spray deposit and loss was observed for conventional sprayer. | |
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