Feeding the world’s growing population
New Zealand’s reputation as a quality food producer is growing.
The Fertiliser Association of New Zealand promotes and encourages responsible and scientifically-based nutrient management.
Analysis of samples from the Winchmore long-term fertiliser trial for total soil cadmium contents
Col Gray, Rich McDowell, Alasdair Noble
Completed November 2017
Introduction
Access to reliable data on soil cadmium (Cd) concentrations for soils that have received long-term inputs of phosphorus (P) fertiliser is important to help manage Cd in New Zealand agricultural systems. Two studies that analysed soil Cd concentrations in samples from the Winchmore long-term phosphate fertiliser trial suggested different trends in rates of Cd accumulation.
The aim of this study was to re-analyse soil samples previously analysed for Cd at the Winchmore trial, and also analyse new samples to help clarify the trend in soil Cd concentrations.
