Show Observation
User: Peter Hudy
Created on: 2011-07-07
Observation Date 2011-07-07
Comment:
Sprayed the T3, LTER Main Site, Treatment T3 ”Business As Usual” [BAU] Microplots (replicates 6, 5, 4, 3, 2 and 1) for post emergence weed control in corn. The microplots which were sprayed were the ”BAU+Fertilization” and the ”BAU-Fertilization” microplots located in the northwest corner of the treatment plot. Each microplot is 15' wide (six rows of corn) and 50' long. Plots were sprayed with Dual II Magnum (S-metolachlor 82.4%) [EPA Reg. No. 100-818], Roundup PowerMax (Glyphosate 48.7%) [EPA Reg. No. 524-549] and Ammonium Sulfate [CAS 7783-20-2]. Dual II Magnum was applied at 16 oz/A, Roundup Power Max at 32 oz/A and Ammonium Sulfate at 3.4 lbs/A. This herbicide combination was selected to best fit with the herbicide combination applied earlier to the rest of the treatment, and take into consideration the current weed pressure. Weather conditions at the start (9:30 a.m.) Sunny-partly overcast, 67 degrees F, 69% relative humidity, winds 2-6 mph from NE. Equipment Used: JD 5220 tractor traveling 4.4 mph (gear C1, 1400 rpm) with a pull type Top Air Sprayer equipped with a hydraulic centrifugal sprayer pump and a Raven 440 automatic carrier control unit. Turbo TeeJet 11003 nozzles were used, spaced 15 inches apart with a total boom length of 13.75 feet (11 nozzles). 20 psi were used. Water applied at 25 gals/A was used as the carrier.
Areas:
T3
Observation Type:
Mechanical Weed Control
Activities:
Attachments: