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We sit down (again) with Kyle Okke of Agile Agronomy and explore how to make variable-rate residual herbicides actually work, from nozzle physics to dual-tank setups, and why agronomy must lead every tech decision. We also talk PWM (pulse width modulation), drift control, and mapping weed hot spots for smarter applications.
Additionally...
• Limits of conventional pressure-based rate changes
• Why droplet size, pattern, and drift control matter
• PWM and duty cycle basics
• Turn compensation for consistent coverage
• Mixing residuals with post products without losing efficacy
• DIect injection timing challenges at boom length
• Dual-tank, dual-boom systems for split strategies
• Cost and scale drivers for adoption of certain spray systems
• Green-on-brown paired with variable-rate residuals
• Drone mapping kochia and wild oat patches for targeted residuals
• Reducing passes, resistance pressure, and carryover risk
Stick around for the final part of our discussion, part 3!
https://gktechinc.com/

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Chapters

1. Welcome Back & Problem Framing (00:00:00)

2. Limits Of Conventional Rate Control (00:00:41)

3. Drift, Coverage, And Off-Target Risk (00:02:30)

4. Agronomy Before Gadgets (00:04:02)

5. Enter Pulse Width Modulation (00:05:20)

6. Turn Compensation And Duty Cycle (00:07:10)

7. Consistent Pattern Quality At Varying Rates (00:09:55)

8. Direct Injection Pros And Pitfalls (00:11:30)

9. Dual-Tank, Dual-Boom Architectures (00:14:08)

10. Cost, Scale, And Adoption In The West (00:17:15)

11. Green-On-Brown + Residual In One Pass (00:19:28)

12. Drones To Target Persistent Weed Zones (00:22:05)

13. Mapping Wild Oat Patches And Residual ROI (00:25:15)

14. Wrap-Up & Teaser For Mapping Deep Dive (00:31:20)

75 episodes