Abstract
THE early radioactive tracer investigations of Dion et al.1,2 revealed that under prairie conditions mono-ammonium phosphate (MAP) supplied phosphorus more rapidly to crops, such as wheat, oats and barley, than did monocalcium phosphate (MCP). Recent short-term absorption investigations3 with a calcareous Saskatchewan soil treated with pelleted MAP and MCP again showed the former source to be superior.
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References
Dion, H. G., Dehm, J. E., and Spinks, J. W. T., Sci. Agric., 29, 167 (1949).
Dion, H. G., Spinks, J. W. T., and Mitchell, J., Sci. Agric., 29, 512 (1949).
> Beaton, J. D., and Read, D. W. L., Soil Sci. Soc. Amer. Proc., 27, 61 (1963).
Beaton, J. D., Charlton, T. L., and Speer, R., Nature, 197, 329 (1963).
Hinman, W. C., Beaton, J. D., and Read, D. W. L., Canad. J. Soil Sci., 42, 229 (1962).
Bouldin, D. R., and Sample, E. C., Soil Sci. Soc. Amer. Proc., 23, 276 (1959).
Beaton, J. D., and Read, D. W. L., Soil Sci., 94, 404 (1962).
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BEATON, J., SPEER, R., READ, D. et al. Distribution of Monocalcium and Monoammonium Phosphate Reaction Products in a Calcareous Saskatchewan Soil. Nature 198, 813–814 (1963). https://doi.org/10.1038/198813b0
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DOI: https://doi.org/10.1038/198813b0
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