
TY  - JOUR
A1  - Palmer, B 
A1  - Bolland, MDA 
A1  - Gilkes, RJ 
T1  - A re-evaluation of the effectivenes of calcined Christmas Island C-grade rock phosphate
JF  - Australian Journal of Experimental Agriculture
JO  - Aust. J. Exp. Agric.
Y1  - 1979
VL  - 19
IS  - 100
SP  - 605
EP  - 610
KW  - 
UR  - https://doi.org/10.1071/EA9790605 
N2  - The influence of calcination temperatures up to 1050°C on the effectiveness of Christmas Island C-grade ore was determined in glasshouse trials with wheat. All calcines were capable of supporting the same maximum yield. Maximum effectiveness, equivalent to one-third that of superphosphate, occurred for calcination temperatures between 450°C and 600°C. Re-evaluation of the results of other workers indicated that a similar value for relative effectiveness applies to their work on a variety of species. 
ER  -

