Project Overview
A GRDC technical guide for southern Australian growers
Soil acidification — the gradual drop in soil pH over time — is one of the most widespread chemical constraints on agricultural soils, especially where nitrogen fertilisers are used and cropping intensity is high. This practical fact sheet from the Grains Research and Development Corporation (GRDC) explains what acidification is, how it develops in both surface and subsurface layers, why it matters for crop growth, and how regular testing and appropriate liming strategies can help manage its effects.
Whether you’re addressing patchy crop growth, planning soil sampling or evaluating long‑term soil health, this resource gives clear guidance on recognising and responding to acidity issues in paddocks.
