Describes phosphorus loss from a Spodosol, focusing on P extracted from high P-impacted soils, low P-impacted soils, and wetland and stream sediments. Discusses applications of isotherm parameters in particular environmental situations.
Defines biochar and describes its history and its use as a soil amendment. Discusses implications of biochar for phosphorus retention, and the soil properties that influence the effects of biochar application.
Describes the P-Index, a site-specific tool for P risk assessment.
Explains the quick P field test, its advantages and uses, its methodology, its correspondence to Mehlich 1-P and water soluble P, and its detection limits.