What spray droplet parameter is the best indicator of spray drift potential
| Problem: | Progress in updating aerial atomization models for compliance with DV0.1 and DV0.9 stipulations in ASAE S572 AUG99 has shown that DV0.9 droplet size often dictates DSC. This may excessively penelize some nozzle and operational conditions since DV0.1 rather than DV0.9 represents the part of the spectrum that is most likely to drift. |
| Objective: | Determine if DSC categories established with DV0.1, DV0.5, or DV0.9 are more representative of spray drift potential. |
| Approach: | Conduct a field spray drift study with protocol similar to those used in the Unit with selected operational conditions to establish DSC categories determined by DV0.1, DV0.5, or DV0.9. Assess downwind drift deposits and determine which parameter better characterizes measured downwind spray deposits. |
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Accomplishments: |
Arrangements have been made with several cooperators to participate in the study. |
Ivan W. Kirk