Abstract:
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The soil samples had been collected from field experiments and air-dried (<40oC) before measuring soil test P. The samples were from field plots that had been treated with different applications of fertiliser P one or more years previously. Soil test P was measured on two different subsamples of the same sample: (i) A, in the year the sample was collected; or (ii) B, after the sample had been stored at fluctuating room temperatures either from 2 to 8 years or 17 years. Differences between A and B were mos
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