Show Observation
User: Peter Hudy
Created on: 2010-04-14
Observation Date 2010-04-14
Comment:
Sprayed LTER Main Site Fertility Gradient (N-rate) Study, including irrigated and dry-land areas, all replications, for post emergence weed control in winter wheat. Plots sprayed with Affinity BroadSpec herbicide at 1.0 oz/A, 2,4-D LV4 herbicide at 12 oz/A and Preference non-ionic surfactant and anti-foaming agent at 0.125% v/v (1 pt/100 gal carrier). Time of application was 3:00-5:00 p.m. Weather conditions were sunny, temperature was 53°F at start and 61°F at end, 39% relative humidity, winds out of southeast at 6-10 mph with 10 minute average of 8 mph. Equipment used: JD 5220 tractor traveling 4.8 mph (gear C1, 1550 rpm) with a pull type Top Air Sprayer equipped with a 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 30 feet. 20-30 psi was used. Water applied at 20 gals/A (187 L/Ha) was used as the carrier.
Areas:
Resource_Gradient-Irrigated Resource_Gradient_Non-Irrigated
Observation Type:
Mechanical Weed Control
Activities:
Attachments: