17. Variable Rating Herbicides with Kyle Okke Pt. 3
We map residual herbicide rates with field truth, not guesses, turning five-zone soil maps into targeted prescriptions that cut injury and hit weed spawn sites. We weigh OM, pH, texture, and landscape to protect sensitive crops now and keep rotations flexible next year.In this episode we discuss...• base maps from precision soil sampling and scouting knowledge• modded zones for unique poor areas and weed hotspots• organic matter, carbonate, and color as soil clues, not absolutes• extreme pH swings shaping efficacy, injury, and carryover• decision framework from damage mitigation to suppression• variable rates to protect sensitive crops and rotations• SmartFirmer OM layers and controller-friendly rate steps• lidar, soil series, and as‑applied maps to refine zones• practical limits of sensors and when algorithms help• closing insights and where we push rates or back offMissed the first two parts of this episode? Check out our previous episodes! https://www.buzzsprout.com/2297340https://gktechinc.com/
--------
34:16
--------
34:16
16.5 Calculating Nutrients in Liquid Fertilizer (Bulk Density!)
We unpack why liquid fertilizer math trips people up and discuss how to figure out how to determine pounds of fertilizer in a liquid fertilizer. We talk real examples and show how small liquid fertilizer densities can drastically affect starter outcomes, especially in cold soils.In this Tiny Bytes, we talk• the dry vs liquid mindset shift • how density changes gallons into pounds • where to find pounds per gallon on fertilizer labels • comparing phosphorus from 10-34-0 and 6-24-6 • implications for starter fertilizer in cold springs • simple rules to avoid under or over applicationTune in next time for a Tiny Byte of knowledge from GK Technology, where we have a map and an app for thathttps://gktechinc.com/
--------
7:28
--------
7:28
16. Variable Rating Herbicides with Kyle Okke Pt. 2
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 riskStick around for the final part of our discussion, part 3!https://gktechinc.com/
--------
33:57
--------
33:57
15.5 Precision Composite Soil Sampling Explained
We unpack why “precision composite soil sampling” isn’t a contradiction and show how GPS-marked points turn an old method into a reliable trend tool. We cover workflows, gear, timing, and when shifting results should push you toward zones.In this episode we discuss • Pre‑GPS composite sampling and its limits• Marking exact GPS points for repeatability• Keeping post‑harvest or spring timing consistent• Tracking year‑over‑year P, K and pH trends• When composites signal a move to zones• Benchmarks versus wider composite coverage• Core counts for quarters and half sections• Gear tips: external GPS pucks and apps• Faster fieldwork once points are mapped• Starting with GK Field Mapper and ADMS exportsMore info about GK Field Mapper here: https://gktechinc.com/gk_field_mapper/Tune in next time for a tiny bite of knowledge from GK Technology, where we have a map and an app for that!https://gktechinc.com/
--------
12:20
--------
12:20
15. Variable Rating Herbicides with Kyle Okke Pt. 1
We explore using precision agriculture to variable-rate apply residual herbicides using soil-driven maps to reduce crop injury on sensitive zones while maintaining strong weed control. Kyle Okke joins us to explain why OM, pH, and texture can set the rate and how sprayer mechanics affect success.In this episode, we discuss• Specialty crops that rely on pre-emerge residuals• Resistant weeds driving need for fall residual applications• Soil variability across landscape positions• Reading labels and guidance on applications based on soil OM, pH and texture• Diagnosing sunflower and pea herbicide injury patterns• Pre- versus Post-herbicide application nuance and resistance risk• Carrier volume (GPA: gallons per acre) as a rate knob• Coverage demands for contact herbicides• Sprayer pressure, droplets, and nozzle behavior• When to split passes versus going across a field onceAt GK Technology, we have a map and an app for that!https://gktechinc.com/
New Zealand