Predicting extractable soil phosphorus using visible/near-infrared hyperspectral soil reflectance measurements

Phosphorus is added to agriculture soils by applying chemical fertilizers and manure; if not completely consumed by crops and plants, it can mobilize in reduced conditions and end up in ground water and, ultimately, in surface water bodies due to leaching and/or runoff. Soil reflectance spectroscopy (SRS) shows promise in providing for the rapid assessment of various physical and