Project Overview
Why subsoil strength matters for root growth and crop performance
Hardened layers within the soil profile — whether from machinery traffic, natural hardsetting or cementation processes — can severely restrict root penetration, limit access to water and nutrients, and reduce crop yield. This practical factsheet from the Grains Research and Development Corporation (GRDC) explains the nature of these physical soil constraints, how they develop in sandy soils, and why understanding their causes and differences can help guide effective management and amelioration strategies.
It’s a useful primer for advisers and growers seeking to diagnose and manage hard subsurface layers in cropping systems.
