Stopping phosphorus (P) fertiliser can decrease topsoil cadmium (Cd) concentrations. Stopping P fertiliser applications reduced soil Cd concentrations after 21 and 26 years. Reductions only occurred where P had been previously applied at ‚â•34 kg P ha‚àí1 yr‚àí1. Other strategies may be required to decrease soil Cd quickly as stopping P fertiliser may lower pasture production.
Funding
Funded by the New Zealand Ministry for Business, Innovation and Employment's Our Land and Water National Science Challenge (Toitū te Whenua, Toiora te Wai) as part of project Linking Legacies to Wai|Sources and Flows