Show Observation

User: Peter Hudy

Created on: 2011-06-22

Observation Date 2011-06-20

Comment:
Sprayed the LTER Treatment T8nt, all replications (reps. 1, 2, 3, and 4) for postemergence weed control in corn. Lexar (S-metolachlor (+ safener) + atrazine + mesotrione) [EPA Reg. No. 100-1201] was applied at 3 qts/acre (7.01 L/Ha), Roundup Power Max (glyphosate [EPA 524-549]) at 22 oz/A and Ammonium Sulfate (CAS 7783-20-2) at 3.4 lbs/A. Equipment Used: JD 5220 tractor traveling 5.0 mph (gear C1, 1600 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. Weather conditions: 70 degrees F, 85% relative humidity, winds from SE at 2-7 mph. Time of application: 1 p.m. - 4 p.m.

Areas:
T8nt

Observation Type:
Mechanical Weed Control

Activities:

Worker: Peter Hudy

Equipment: John Deere 5220 Tractor

Equipment: Top Air Sprayer

Equipment: TurboTeeJet 11003 Flat Fan Nozzle • Material: Herbicide Lexar (S-metolachlor (+safener) + atrazine + mesotrione) @ 3.0 quart per acre • Material: Herbicide Roundup Power Max (glyphosate 48.7%) @ 22.0 ounce per acre • Material: Ammonium sulfate (AMS) @ 3.4 pound per acre • Material: H2O @ 20.0 gallon per acre

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