Topsoil acidity measured in calcium chloride, tracked over time against the target. pH is the master variable of the root zone: it governs nutrient availability, aluminium and manganese toxicity, nodulation in legumes and the persistence of the whole rotation.
For most crops the target topsoil pH is above 5.5 in calcium chloride; below about 5.2, aluminium becomes available and starts to prune roots and cap yield, especially in acid-sensitive crops.
NSW DPI Acid Soils ↗Acidity develops slowly and invisibly, then constrains everything — a rising trend after liming shows the investment is working, while a stalled or falling one warns that acidification is outrunning your lime program before yields ever flag it.
Silo pulls each of these from the sources the operation already uses, and keeps the figure current automatically.
Apply lime to budget, matched to buffering capacity and target pH.
Monitor subsurface acidity, not just the top 10 cm, before it hardens.
Use acid-tolerant varieties and species as a bridge while pH recovers.
Topsoil acidity measured in calcium chloride, tracked over time against the target. pH is the master variable of the root zone: it governs nutrient availability, aluminium and manganese toxicity, nodulation in legumes and the persistence of the whole rotation.
You need: Topsoil pH(CaCl₂) (pH), Subsurface pH (pH), Lime applied (t/ha). Silo pulls each of these from the sources the operation already uses and keeps the figure current automatically.
For most crops the target topsoil pH is above 5.5 in calcium chloride; below about 5.2, aluminium becomes available and starts to prune roots and cap yield, especially in acid-sensitive crops.
Apply lime to budget, matched to buffering capacity and target pH. Monitor subsurface acidity, not just the top 10 cm, before it hardens. Use acid-tolerant varieties and species as a bridge while pH recovers.
Connect the software, spreadsheets and records you already keep, and Silo keeps every benchmark on this page current automatically.
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