pH āĻšāϞ āĻāĻāĻāĻŋ āĻĻā§āϰāĻŦāĻŖā§āϰ āĻ āĻŽā§āϞāϤāĻž āĻŦāĻž āĻā§āώāĻžāϰāϤāĻž 0 āĻĨā§āĻā§ 14 āĻāϰ āϏā§āĻā§āϞ⧠āĻĒāϰāĻŋāĻŽāĻžāĻĒ āĻāϰā§, āϝā§āĻāĻžāύ⧠7 āύāĻŋāϰāĻĒā§āĻā§āώāĨ¤ āĻšāĻžāĻāĻĄā§āϰā§āĻĒā§āύāĻŋāĻā§āϏ āĻāĻŦāĻ āĻŽāĻžāĻāĻŋāϤ⧠āĻāĻžāώā§, pH āϏāϰāĻžāϏāϰāĻŋ āύāĻŋāϝāĻŧāύā§āϤā§āϰāĻŖ āĻāϰ⧠āĻā§āύ āĻĒā§āώā§āĻāĻŋāĻā§āϞāĻŋ āĻāĻĻā§āĻāĻŋāĻĻā§āϰ āĻļāĻŋāĻāĻĄāĻŧā§āϰ āĻāĻžāĻā§ āϰāĻžāϏāĻžāϝāĻŧāύāĻŋāĻāĻāĻžāĻŦā§ āĻāĻĒāϞāĻŦā§āϧāĨ¤ āĻŦā§āĻļāĻŋāϰāĻāĻžāĻ āĻĢāϏāϞ āĻšāĻžāĻāĻĄā§āϰā§āĻĒā§āύāĻŋāĻ āϏāĻŋāϏā§āĻā§āĻŽā§ 5.5â6.5 pH-āĻ āϏāĻŦāĻā§āϝāĻŧā§ āĻāĻžāϞ⧠āĻāύā§āĻŽāĻžāϝāĻŧāĨ¤
āĻŽā§āϞ āϤāĻĨā§āϝ
- Scale runs 0â14: below 7 is acidic, above 7 is alkaline, 7 is neutral
- Hydroponic target range: 5.5â6.5 (slightly acidic) for most crops
- Soil target range: 6.0â7.0 depending on crop
- Out-of-range pH causes nutrient lockout â plants cannot absorb minerals even if present
- pH drifts over time as plants absorb nutrients and water evaporates
- Adjust with pH Up (potassium hydroxide) or pH Down (phosphoric acid)