A web-based tool to help land managers make decisions on how to manage cadmium accumulation in agricultural soils
CadBal is a mass-balance model that estimates cadmium accumulation or depletion in agricultural soils over time. It is based on the initial total soil cadmium concentration for a land management unit, along with a series of Cd inputs and losses.
It is important to recognise that the model has been developed with the best available science and New Zealand specific data, but large uncertainties remain. The model results are sensitive to selection of soil pH, organic matter and drainage.
This online tool allows users to predict cadmium accumulation in soils over time for different land management scenarios. It can be used to ensure cadmium does not accumulate in soils to concentrations that will pose a risk to agricultural production systems in New Zealand. The tool should be used alongside OVERSEER® and the Tiered Fertiliser Management System (TFMS) for decision making.
Click here to access the Fact sheet on using CadBal to estimate requirements for Nil soil accumulation
Click here to access the online tool.
Every effort has been made to ensure this tool is consistent with current science. However scientific research and development can involve extrapolation and interpretation of uncertain data, and can produce uncertain results. The model results are also sensitive to selection of soil pH, organic matter and drainage. Neither the Fertiliser Association of New Zealand or any organisation or person involved in the development of this tool, shall be responsible for any error or omissions or for any use of or reliance on this tool unless specifically agreed otherwise in writing. To the extent permitted by law, the Fertiliser Association of New Zealand excludes all liability in relation to this tool, whether under contract, tort (including negligence), equity, legislation or otherwise unless specifically agreed otherwise in writing.