Show Observation
User: Todd Martin
Created on: 2018-06-04
Observation Date 2018-05-29
Comment:
Fertilized the Switchgrass fertility experiment. Pelletized limestone was applied at four rates: 1 ton/A, 2.5 ton/A, 3.0 ton/A, and 3.5 ton/A. All applications were with multiple passes over the plots to reach the correct amount (the gandy applicator has a limitation of a maximum application rate of approximately 999 lbs/A due to product flow through the hoses). Pelletized limestone was applied to the following: SWF4(1ton/A), SWF5(2.5 ton/A), SWF6(2.5 ton/A), SWF7(3.0 ton/A), SWF8(3.5 ton/A) . Applied with the John Deere 7420a tractor traveling 0.9-1.2 mph (range A1, 1100-1400 rpm) 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 22.5”; meter cal number 163; air pressure was 20 p.s.i.; Boom length 15 feet extending from the center of the Gandy to the right only, nozzles 16-24 inches above the ground level. Weather conditions: sunny, temperatures 60 degrees F.
Areas:
Switchgrass_fertility
Observation Type:
Fertilizer Application
Activities:
Attachments: