July Spray ApplicationsIntegrated Crop Management News
AbstractApplicators using ground sprayers for herbicide may be using higher speeds to catch up with weeds and cover more acres in a narrow time window. If so, they should consider the travel speed they've used to calculate appropriate nozzle size. If field speed increases by 25% (e.g., going from 12 to 15 mi/h), spray pressure for a given nozzle must increase by 56% (e.g., from 40 psi to 63 psi) to maintain output. A better choice to reduce smaller droplets and minimize drift would be to increase nozzle size.
Copyright OwnerIowa State University
Citation InformationClarke McGrath and H. Mark Hanna. "July Spray Applications" (2014)
Available at: http://works.bepress.com/mark_hanna/154/