Across
- 5. — Adding fresh water to a reservoir to maintain levels.
- 6. — Slimy bio-clogs that form in irrigation lines.
- 9. - Solution range (5.5–6.5) for optimal nutrient uptake.
- 10. — Micro-nutrient (Fe) whose availability drops at high pH.
- 11. Gas essential for root health, often added via air stones.
- 12. — Growing plants in a mist rather than a liquid solution.
- 13. The "P" in pH, measuring acidity or alkalinity.
- 15. — Solution "strength" often measured in mS/cm.
- 17. — A common organic acid used for short-term pH reduction.
- 18. — Substances like perlite or coco coir that supports roots.
- 20. — Type of water with high mineral content that causes lockout.
- 22. — Common disinfectant in tap water that can harm roots.
Down
- 1. — Capacity of water to neutralize acids.
- 2. — Essential macronutrient (K) that boosts disease resistance.
- 3. — Primary macronutrient responsible for leafy green growth.
- 4. Measure of total dissolved nutrient salts.
- 7. — Micronutrient (Zn) needed in very small "trace" amounts.
- 8. — Tank or barrel used to store the nutrient solution.
- 11. — movement of water molecules across a semi-permeable membrane.
- 14. — Phenomenon where high pH prevents nutrient absorption.
- 16. — Measurement of nutrient-richness in solution (Abbr.)
- 19. — Tool used to increase oxygen via pressurized air bubbles.
- 21. — Type of water change required when top-ups equal volume.