Show Observation
User: Peter Hudy
Created on: 2012-05-11
Observation Date 2012-05-10
Comment:
Sprayed the LTER Main Site Treatment T2, all replications (reps 6, 5, 4, 3, 2 and 1) for preplant burndown weed control using Roundup PowerMax and ammonium sulfate. Roundup Power Max (EPA Reg. No. 524-549) (Glyphosate: N-(phosphonomethyl) glycine, in the form of its potassium salt, 48.7%) was applied at 1 qt/acre, and Ammonium Sulfate (sprayable, CAS #7783-20-2) was applied at 3.4 lbs/acre. Weather conditions: Sunny with air temperature of 61 degrees F. Relative Humidity was 33%. Wind was from north at 2 mph. Time of application was 1:45 p.m. - 4:30 p.m. Equipment Used: JD 5220 tractor traveling 3.8 mph (gear B3, 1700 rpm) with a pull type Top Air Sprayer equipped with a hydraulic centrifugal sprayer pump and a Raven 440 automatic carrier control unit. Turbo TeeJet 11003 nozzles were used, spaced 15 inches apart with a total boom length of 30 feet. 20 psi were used. Water applied at 20 gals/A, (187 L/ha), was used as the carrier.
Areas:
T2
Observation Type:
Mechanical Weed Control
Activities:
Attachments: