Show Observation

User: Justin Mezo

Created on: 2013-07-17

Observation Date 2013-07-13

Comment:
Fertilized the LTER Main Site treatment T6 alfalfa, all replications (reps 1, 2, 3, 4, 5, and 6) with potash. A total of 270 pounds /A of product (0-0-60) which supplied 162 lbs/A of K2O. Applied in a single application of using the John Deere 7420b tractor traveling 2.2 mph 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 68 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 11 p.s.i.; Boom length 30 ft, nozzles 16-24 inches above the ground level. Replications 1 and 2 were done on Friday 7-16, reps 3,4,5, and 6 were done on Saturday. Rep 6 last 45 feet to the East had to be finished on Monday. LTER Main Site treatment T6 only got partial application of potash and that was 270 lbs/A potash (0-0-60) on July 13, 2013. Due to time restraints we were unable to get the remaining 230 lbs/A of potash on the alfalfa. Protocol was to apply 288 lbs/A K2O, however the 270 lbs/A of potash (0-0-60) put on in July supplied 162 lbs/A K2O out of the 300 lbs/A K2O that the protocol called for. Also (NO boron was added in 2013). Protocol had Boron being applied at 2 lbs/A.

Areas:
T6

Observation Type:
Fertilizer Application

Activities:

Attachments: