Salmanzadeh, Mahdiyeh and Hartland, Adam and Stirling, Claudine and Balks, Megan and George, Ejin and Schipper, Louis (2016) Use of cadmium isotopes to distinguish sources of cadmium in New Zealand agricultural soil: Preliminary results. Integrated Nutrient and Water Management for Sustainable Farming, Massey University, Palmerston North, New Zealand, 9-11 February, 2016.
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Official URL: https://www.massey.ac.nz/~flrc/index.htm
Abstract or Summary
In New Zealand’s agricultural soils, phosphate fertiliser applications are the main source of cadmium (Cd). In 1997, the NZ fertiliser industry discontinued sourcing rock phosphate from Nauru (about 450 mg Cd/ Kg P) and began producing superphosphate from other rock phosphate sources (such as Morocco), which have generally lower concentrations of Cd. Research on the concentration of Cd in soils from the long-term irrigation trials at the Winchmore research farm (Canterbury) indicates that Cd accumulation rates have started to slow in the period since 1997 (Fig. 1) (McDowell 2012).
| Item Type: | Paper presented at a conference, workshop or other event, and published in the proceedings |
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| Keywords that describe the item: | cadmium isotopes, New Zealand, agricultural soil |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry S Agriculture > S Agriculture (General) |
| Divisions: | Schools > Centre for Science and Primary Industries |
| ID Code: | 5653 |
| Deposited By: | |
| Deposited On: | 18 Jan 2018 04:15 |
| Last Modified: | 18 Jan 2018 04:15 |
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