New support guide on when to consider subsoil amelioration

Grain growers considering subsoil amelioration on their farms are encouraged to visit Agriculture Victoria’s new dedicated webpage and support guide to help navigate the decision-making process.

Agriculture Victoria Land Management Extension Officer Adam Buzza said subsoil amelioration is a land management practice where organic matter is typically injected into the subsoil using a specialised deep ripping machine.

‘Our online resources provide decision support on when to consider subsoil amelioration, when it’s least effective, what it costs and guides on how different subsoil types respond,’ Mr Buzza said.

‘Subsoil amelioration aims to improve nutrient availability, water movement and root development for better crop growing conditions and a higher yield at harvest time.

‘Research shows that subsoil amelioration can increase grain yields by an average of 12% but its effectiveness is dependent on factors such as average annual rainfall, subsoil type and any constraints such as salinity or water logging.

‘It’s important to note that amelioration upfront costs can be above $2000 per hectare and for some subsoils this is not a cost-effective option,’ he said.

Mr Buzza said the decision support guide is available in the grains, pulses and cereals section of the Agriculture Victoria website.

The resource was developed with the support of the National Landcare Program Smart Farms Small Grants – an Australian Government initiative – and the Grains Research and Development Corporation.

-Agriculture Victoria