Free Crop Steering Guide
Precision Irrigation PlaybookSteer smarter,
not harder.
A 40-page Precision Irrigation Playbook that turns EC, dryback, and irrigation timing into a repeatable system — powered by Growlink Copilot.
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What you'll learn
Translate data into calculated decisions.
Built on Growlink's Crop Steering Fundamentals and rewritten around Copilot — practical setpoints you can run, stage by stage.
Standardize field capacity
Place and calibrate sensors for a true 30% dryback, so “full” means the same everywhere and your readings are actually comparable.
Run the four phases
Configure P0 dryback, P1 ramp-up, P2 maintenance, and P3 overnight in Copilot to hit target VWC, dryback, and EC every cycle.
Steer EC with intent
Use runoff, dryback windows, and field-capacity locks to stack or flush substrate EC on purpose — not by accident.
Inside the playbook
Real pages, real reference material.
Diagrams, dashboards, and printable setpoint tables you'll come back to every cycle.
Standardize sensor field capacity
Absolute vs. relative dryback
Inside the Copilot dashboard
The four phases: P0 → P3
Environmental setpoints reference
Generative stretch strategy (wk 1–3)
How it's organized
From sensor placement to ripen.
The four irrigation phases are the backbone of the playbook. Each one has its own targets, schedule, and Copilot settings.
Additional dryback
The window between lights-on and the first shot — set the dryback that triggers the day.
Ramp up
Small, frequent shots rehydrate the substrate to field capacity without channeling.
Maintenance
Hold VWC and regulate EC by adding or removing shots through the day.
Overnight dryback
No scheduled water — only failsafe shots protect your floor while the plant dries back.
- 02 Sensors & zone placement
- 06 Comparing EC: TDR vs. capacitance
- 08 Vegetative vs. generative steering
- 09 Absolute vs. relative dryback
- 11 Understanding the runoff zone
- 12 Introduction to Copilot & Autopilot
- 28 Environmental targets reference
- 29 Irrigation targets reference
- 30 Weeks 1–3 — Stretch (generative)
- 34 Weeks 4–6 — Bulk (vegetative)
- 36 Weeks 7–8 — Ripen (generative)
- 27 Flush & overnight failsafe
Why growers steer with Growlink
Consistency you can measure.
What operators see when room-level control becomes repeatable.
“Our cycle-over-cycle consistency went up dramatically. We finally have a single source of truth for what's working.”
“The playbook approach changed how we run rooms. Every harvest builds on the last instead of starting from scratch.”
“We cut labor cost per pound in the first two cycles. The agents catch drift before it costs us yield.”
Marcus Baldinger
Marcus wrote the Precision Irrigation Playbook and the original Crop Steering Fundamentals manual it builds on. The guide distills the practical steering concepts and Copilot setpoints he works through with commercial cultivators — framed so you can adapt them to your own substrate, sensors, and genetics.
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