Show Observation

User: Peter Hudy

Created on: 2011-04-06

Observation Date 2011-04-05

Comment:
Fertilized LTER Main Site Treatment T6, all replications (reps 5, 6, 3, 4, 1 and 2) with 0-0-60 Potash at 230 lbs/A and boron (as sodium borate, Na2B4O7·5H2O with 14.3% boron) at 3 lbs/A. The 230 lbs/A potash provided 138 lbs/A K2O to the plots. The 3 lbs/A borate provided 0.43 lbs/A B. This was the second half of a two part application to reach 460 lbs/A of potash. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.3 mph, 1400 rpm travelling in gear B2; Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. Feed rate was approximately 36 lbs/minute (2.25 lbs/min per tube). 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 11 p.s.i. Weather conditions: partly sunny, temperatures 37-44 degrees F, winds 7-10 mph from west.

Areas:
T6

Observation Type:
Fertilizer Application

Activities:

Worker: Peter Hudy

Equipment: John Deere 7420a Tractor

Equipment: Gandy Orbit-Air (30' boom) • Material: Fertilizer 0-0-60 potash fertilizer @ 230.0 pound per acre • Material: boron (B) @ 3.0 pound per acre

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