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Phosphorus sorption and phosphorus requirements of major tobacco soils in north queensland australia

Moody, P.W.; Tonello, P.E.

Queensland Journal of Agricultural and Animal Sciences 38(1): 21-28

1981


Accession: 006106999

From P sorption curves a supernatant solution P concentration of 0.11 ppm corresponded to 90% maximum yield of field-grown tobacco. Nineteen virgin sites in the Mareeba-Dimbulah area were sampled to cover the range of major tobacco soils. Field application rates required for 90% maximum yield at each site were calculated from the P sorbed by the soil at a supernatant solution P concentration of 0.11 ppm. The rates were 5-43 kg P ha-1. Agricultural implications of these results are discussed.

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