Section 2
Chapter 1,310

Bray/Kurtz, Mehlich III, AB/D and ammonium acetate extractions of P, K and Mg in four Oklahoma soils

Hanlon, E.A.; Johnson, G.V.

Communications in Soil Science and Plant Analysis 15(3): 277-294


ISSN/ISBN: 0010-3624
DOI: 10.1080/00103628409367475
Accession: 001309825

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The recently developed Mehlich III and ammonium bicarbonate-DTPA multi-element extraction solutions were each compared with the more conventional Bray/Kurtz extractant for P determination and with 1N ammonium acetate for K and Mg determinations. The latter two solutions are single and tri-element extractants in current use by the Oklahoma State University Soil Testing Laboratory. The Bray/Kurtz extractant was also compared with the 1N ammonium acetate for K and Mg determination.

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