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User: Peter Hudy

Created on: 2012-04-17

Observation Date 2012-04-17

Comment:
Fertilized LTER Main Site treatment T1, all replications (reps. 1, 5, 4, 3, 2, and 6) with potash (0-0-60) at 92 lbs/A. The 92 lbs/A potash provided 55.2 lbs/A K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.8 mph, 1650 rpm travelling in gear C2 and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: mostly sunny, temperatures 44-55 degrees F, winds 3-4 mph from north to northwest (10 minute average of 4 mph), 65% relative humidity at start to 46% at end, application time 9:30 a.m. - 1:30 p.m.

Areas:
T1

Observation Type:
Fertilizer Application

Activities:

Worker: Commercial Applicator
Equipment: John Deere 7420a Tractor
Equipment: Gandy Orbit-Air (30' boom) • Material: Fertilizer 0-0-60 potash fertilizer @ 92.0 pound per acre

Attachments:

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