Free tool · Soil pH
How soil pH affects nutrient uptake
Drag the slider and watch all 11 essential plant nutrients respond in real time — then project the impact of fertilisers and liming.
Soil pH
6.5
Optimum Zone
Fertiliser & Liming Impact
of continuous application
Select up to 3 fertilisers and a liming material. The projected pH marker and nutrient bars update automatically.
Fertiliser 1
Fertiliser 2
Fertiliser 3
Liming Material
Select at least one fertiliser or liming material above to see the projected pH impact.
Nutrient Availability
Click any nutrient to learn the science behind it.
Macronutrients
Micronutrients
Crop pH Preferences
How does your current pH compare to what your crop actually needs?