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Citation: Kw. Perrott et Mj. Kear, Direct application phosphate rocks: Do soil phosphorus tests take site influence into account?, COMM SOIL S, 32(13-14), 2001, pp. 2133-2144

Authors: Perrott, KW Wise, RG

Citation: Kw. Perrott et Rg. Wise, Determination of residual reactive phosphate in soil, COMM SOIL S, 31(11-14), 2000, pp. 1809-1824

Authors: Perrott, KW Kear, MJ

Citation: Kw. Perrott et Mj. Kear, Laboratory comparison of nutrient release rates from fertilisers, COMM SOIL S, 31(11-14), 2000, pp. 2007-2017

Authors: Saggar, S Hedley, MJ White, RE Perrott, KW Gregg, PEH Cornforth, IS Sinclair, AG

Citation: S. Saggar et al., Development and evaluation of an improved soil test for phosphorus, 3: field comparison of Olsen, Colwell and Resin soil P tests for New Zealand pasture soils, NUTR CYCL A, 55(1), 1999, pp. 35-50