Better identification and management of subsurface acidity on sandy soils of the Northern Yorke Peninsula

The aim of this project is to improve the capacity of growers to identify and manage subsurface acidity on the Northern Yorke Peninsula. Soil testing and pH mapping for acidity has become common practice in the district. However, this sampling and mapping has focused on the top 0-10 cm of soil. Recent reports and preliminary work have confirmed an acidic band of soil is often occurring at the 5-15 cm depth and beyond in certain soil types.There are two main components to this project:Spatially identifying subsurface acidity by validating the relationship between soil pH and EC (electrical conductivity).Develop best management practices for lime amelioration to manage subsurface acidity.