Soil Phosphorus

Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. I

Rattan Lal, Ph.D, is professor of soil physics and director of the Carbon Management & Sequestration Center at Ohio State University, Columbus, USA.

B.A. Stewart, Ph.D, is distinguished professor of agriculture and director of the Dryland Agriculture Institute, West Texas A&M University, Canyon, USA.