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User: Peter Hudy
Created on: 2012-04-18
Observation Date 2012-04-18
Comment:
Fertilized GLBRC Main Site treatment G1, all replications (reps. 5, 4, 3, 2, and 1) with potash (0-0-60). The potash was applied at different rates in different plots according to soil sample analysis. Main plot areas were fertilized according to the following schedule (weights in pounds/A): rep 1 - 250; rep 2 - 250; rep 3 - 275; rep 4 - 250; and rep 5 - 250. Microplot areas were fertilized according to the following schedule (weights in pounds/A): rep 1 - 250; rep 2 - 275; rep 3 - 275; rep 4 - 50; and rep 5 - 250. When potash was applied at 250 lbs/A it provided 150 lbs/A K2O to the plots [275 lbs/A potash equated to 165 lbs/A K20; 50 lbs/A potash equated to 30 lbs/A K2O]. The fertilizer was applied with the JD 7420(a) tractor traveling at variable speeds so that no more than 2.2 lbs/minute/nozzle was applied. The Gandy Orbit-Air fertilizer applicator was 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 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: sunny, temperatures 51 degrees F, winds 7 mph from southeast (10 minute average of 6 mph), 62% relative humidity, application time 9:00-10:30 a.m.
Areas:
G1
Observation Type:
Fertilizer Application
Activities:
Attachments: