Show Observation

User: Peter Hudy

Created on: 2011-05-16

Observation Date 2011-05-12

Comment:
Sprayed the LTER Interaction Field (Identified as field B3 at the Farming Systems Center) with Roundup Power Max (glyphosate [EPA 524-549]) at 44 oz/A and Ammonium Sulfate (CAS 7783-20-2) at 3.4 pound/A in 20 gallons/A of water. All 16 plots of Interaction Field were sprayed; however, weedy areas corresponding to approximately 15' on the E side of each plot were left unsprayed. All plots had headland passes made on both the N and S side prior to spraying the many area of the plots. Weather conditions: Sunny to partly sunny with air temperature of 72 degrees F (22.2 degrees C) at start. Relative Humidity was 71%. Wind was from S at 2 mph. Time of application was 11 a.m. - 12:01 p.m. 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.

Areas:
Interaction

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 Roundup Power Max (glyphosate 48.7%) @ 44.0 ounce per acre • Material: Ammonium sulfate (AMS) @ 3.4 pound per acre • Material: H2O @ 20.0 gallon per acre

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