The Soil Acidification Project aims to increase awareness of soil acidification and its effects on productivity and to promote practices to ameliorate and reduce the likelihood of soil acidification.
The Soil Acidification Project will focus on increasing graziers' knowledge in the Waterhouse/Tomahawk and Fingal farming regions of soil acidification in agriculture, encouraging the adoption of improved practices through on-farm demonstrations and key learnings and recommendations for adaptive management and expansion of the program in future years.
Managing soil acidity in Tasmanian permanent pasture systems is challenging due to a shallow (10cm) soil testing depth and low neutralising value of commonly used lime. Low soil pH in agricultural systems leads to a range of issues including aluminium toxicity, lockup of certain minerals and impaired performance of soil biological function, such as legumes that fail to form effective rhizobia symbiosis. These issues lead to poor performance, particularly shallow-rooted pastures with low resilience in dry seasons.
The Soil Acidification extension approach for the grazing sector is to include:
Return to the Land Program.
Increasing target farmers' understanding of hillslope erosion.
Improving carbon flow into the soil in cropping systems and pasture.
Providing important core agricultural services within the NRM North region.