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. 2016 Feb 11;67(12):3709–3718. doi: 10.1093/jxb/erw035

Table 1.

Characterization of P-responsive soils used in rhizosheath screening experiments and glasshouse growth trials

Parameter	Ferrosol^a(Robertson)	Kandosol^a(Rye Park)
	Ferrosol^a(Robertson)	Kandosol^a(Rye Park)
pH	4.3	4.0
Field capacity (%w/w)	36.0	20.0
Colwell P (mg P kg⁻¹)	41.7	8.0
PBI^b	1117	70
Total P (µg g⁻¹)	1260	89
Soluble Al	27.6	40.0

a Soil classified according to Isbell (1996).

b Phosphorus buffer index.