Summary
- Have your irrigation water tested.
- Select an acid of known strength.
- Determine how much of your acid is needed to neutralize 80% of the bases in your water.
- Inject the calculated rate of acid into your irrigation water.
- Measure the pH of the water as it comes out of the irrigation line.
- If the pH is not between 4.5 and 5.0, increase or decrease the amount of acid.
- Re-test the water source and irrigated soil about once a year to check for any changes.
Table A-2-1. Properties of common acids.
Acid |
Strength |
Rate calculation factor |
Sulfuric |
93% |
8.7 |
Muriatic (Hydrochloric) |
32% |
29.6 |
Phosphoric |
85% |
6.8 |