Why Water and Nutrients Matter
At a GACP cannabis farm, water chemistry and nutrient strength determine quality. Accordingly, Solar Farm measures runoff and controls supply pH and PPM (500 scale) so each lot meets medical-grade specifications for cannabis wholesale in Thailand.
Why Runoff Matters
Runoff reflects what roots actually experience, not just what the tank says. Reading pH and PPM from both feed and runoff shows uptake efficiency, salt accumulation, and media condition. This evidence lets a GACP cultivation team correct problems early and keep every lot within medical specifications for cannabis wholesale in Thailand.
Use a clean measuring jug, labeled catch trays, a pH meter, a PPM 500 scale meter, and alcohol wipes. Calibrate the pH meter daily with pH 7 and pH 4 solutions. Rinse probes with RO water before and after each reading. Stir samples for 10 to 15 seconds before recording values to stabilize readings.
Step-by-Step Protocol
- Select representative plants across the room: front, middle, back, and near doors or AC outlets.
- Record plant ID and pre-feed pot weight if you track weight.
- Feed on schedule. Note feed volume in milliliters and the time applied.
- Wait until dripping stops. Collect runoff in a clean container and measure the volume.
- Test feed pH and PPM, then test runoff pH and PPM.
- Compute runoff percent as (runoff ÷ feed) × 100.
- Log date, room, plant ID, operator, feed pH, feed PPM 500, runoff pH, runoff PPM 500, runoff percent, and notes.
Conclusion
Runoff testing, pH, and PPM measurement form the backbone of GACP cultivation. At Solar Farm, these checks guide irrigation and nutrition; together they help plants mature into safe, consistent medical cannabis ready for bulk supply.
