Show Observation

User: Justin Mezo

Created on: 2015-05-13

Observation Date 2015-05-13

Comment:
Fertilized GLBRC Main Site Switchgrass Fertility Study (SWF: N-rate), all treatments and all replications. Fertilizer applied as 28-0-0 which supplied 28% nitrogen in the form of Urea-Ammonium Nitrate (UAN) (CAS #57-13-6 Urea, #6484-52-5 Ammonium Nitrate). The amounts of nitrogen applied were as follows: SWF1 (108, 201, 307, 408) 0 lbs/A; SWF2 (104, 206, 308, 407) 25 lbs N/A (8gal/A); SWF3 (102, 202, 302, 406) 50 lbs N/A (17 gal/A); SWF4 (105, 208, 305, 405) 75 lbs N/A (25 gal/A); SWF5 (101, 205, 304, 404) 100 lbs N/A (34 gal/A); SWF6 (107, 207, 301, 403) 125 lbs N/A (42 gal/A); SWF7 (106, 204, 306, 402) 150 lbs N/A (50 gal/A); SWF8 (103, 203, 303, 401) 175 lbs N/A (59 gal/A). All passes were made from the south alleyway across to the north side, doing blocks 1 & 3 at a time and then 2 & 4. Conditions: At the end sunny, 56 degrees F, 60% Humidity with avg.winds 4 mph out of the east. Equipment used: John Deere 5220 tractor pulling a Top-Air pull type sprayer equipped with a hydraulic centrifugal sprayer pump. A single pass of a boom type sprayer was used to broadcast spray and apply the correct amount of fertilizer. The sprayer was controlled by a John Deere Rate Controller. Chafer stream bars were spaced 15 inches apart along the 15 foot boom length extending from the center of the drive-line off to the right side of the sprayer; 11 nozzles were used on the boom. Different pressures, rpm, and speeds were used for the application so that the pressure range at the sprayer varied between 17-40 psi. 1.0 Orifice's were used in the chafer stream bars for SWF2 (17psi.C1), SWF3 (40psi B2), SWF4 (40psi B1); and 1.8 orifice's were used in the chafer stream bars on SWF5 (30psi B3), SWF6 (30psi B2), SWF7 (20psi B1),and SWF8 (30psi B1).

Areas:
Switchgrass_fertility

Observation Type:
Fertilizer Application

Activities:

Attachments: