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The aim of determination of assimilable phosphorus in the soil. Introduction to the study of the influence of the pH of the extractant on the content of phosphorus extracted.



The aim of determination of assimilable phosphorus in the soil. Introduction to the study of the influence of the pH of the extractant on the content of phosphorus extracted.



An. Primeira Reun. Brasil Ciene. Solo, 1950. 281-287



The Truog-Meyer method was used, with extractant solutions consisting of various dilutions of H2SO4 buffered to pH values of I, 2, 3, 4, 5 and 6 by means of (NH4)2SO4.

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