Across
- 1. parts per million
- 4. crucial reading as it controls nutrient availability
- 5. vital process of supplying oxygen to the nutrient solution
- 10. truly passive hydroponic system
- 11. organic pesticide or fungicide
- 12. used to hold the roots in place
- 14. TDS
- 15. fungal disease that afflicts seedlings
- 18. used by plants in large amounts
- 19. soil-free growing method where plant roots hang in the air sprayed with a nutrient-rich mist
- 21. blend of ferts and water
- 22. measures concentration of dissolved mineral salts in the water
- 23. plants are grown in sloped channels with roots exposed to film of nutes
Down
- 2. used by plants in smaller amounts but just as important
- 3. crucial to maintain as it effects dissolved oxygen levels and root health
- 6. giving only water to wash out imbalanced or excess nutrients
- 7. beneficial fungi that helps roots absorb nutes
- 8. dying of plant tissue
- 9. where the nutrient solution is held
- 13. yellowing of leaves caused by nutrient deficiency
- 16. condition that can occur when plants are over fed
- 17. growing medium made from the husk of coconuts
- 20. type of growing medium made from rock