Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil

Table 1

Selected soil chemical properties.

Soil	Sand %	Organic matter g kg^−1	pH	Total P	Mehlich-1 P	Oxalate -extractable			PSIox^1
						P	Fe	Al
				mg kg^−1
Millhopper	95	19	5.6	1339	5.7	585	2222	956	0.25

1Phosphorus saturation index (PSI) = [P ÷ (Al + Fe)] with P, Fe, and Al concentrations expressed as mmol kg⁻¹.