
%0 Journal Article
%A Sparrow, LA 
%A Salardini, AA 
%A Bishop, AC 
%T Field studies of cadmium in potatoes (<I>Solanum tuberosum</I> L.). Response of cvv. Russet Burbank and Kennebec to two double superphosphates of different cadmium concentration
%J Australian Journal of Agricultural Research
%D 1993/06/01
%V 44
%N 4
%P 855-861
%K cadmium;potatoes;double superphosphate;cultivars;ferrosols;petiole Cd;tuber Cd
%R https://doi.org/10.1071/AR9930855
%U https://www.publish.csiro.au/paper/AR9930855 
%X Separate field experiments were conducted with Russet Burbank and Kennebec potatoes on a basaltic krasnozem where tuber cadmium (Cd) responses were examined over three rates of banded phosphorus (P), supplied as double superphosphate (DSP) containing either 15 or 90 mg Cd kg-1. In both cultivars, tuber Cd concentrations increased with rate of DSP. This response was due more to the amount of P supplied in the DSP than the amount of Cd supplied in the DSP and may be a result of banded P encouraging root proliferation in the fertilizer band. Even with DSP at 15 mg Cd kg-1, Cd additions at rates of DSP needed for high yields were 6-20 times higher than corresponding rates of Cd removal in tubers. Examination of data from all studies of Cd in Russet Burbank on Tasmanian krasnozems showed a significant relationship between petiole and tuber Cd concentrations, but the estimation of a petiole concentration associated with the critical tuber Cd concentration in Australia was subject to unacceptable uncertainty due to variation between sites. 
