May 18, 2015
Tempe, Ariz. — Researchers from Arizona State University, along with more than 40 other scientists, engineers, technical experts and policy makers from around the world, are convening in Washington, D.C. May 18-21 to study ways to create a sustainable phosphorus (P) fertilizer system.
The use of phosphorus, a key component of fertilizers, is increasing around the world. As a result, the runoff of phosphorus from farms and cities is creating noxious algal blooms, which often lead to "dead zones" in rivers, lakes and coastal oceans.
Furthermore, the price of phosphate rock used for fertilizer production is increasing and uncertainty surrounds the long-term reliability of these rock supplies, as they are distributed from just a few countries. Many experts believe humanity's phosphorus use has already exceeded "safe boundaries" and are calling for solutions both to protect water quality and assure long-term reliable supplies of P for fertilizer.