By Eric Sorensen, WSU science writer

A Washington State University researcher and two WSU graduates make a case in the journal Nature for a new type of agriculture that could restore the beleaguered soils of Africa and help the continent feed itself in the coming decades.

Their system, which they call “perenniation,” mixes food crops with trees and perennial plants, which live for two years or more.

Thousands of farmers are already trying variations of perenniation, which reduces the need for artificial inputs while improving soil and in some cases dramatically increasing yields. One woman quadrupled her corn crop, letting her raise pigs and goats and sell surplus grain for essentials and her grandchildren’s school fees.

WSU soil scientist John Reganold wrote the article with Jerry Glover (’97 B.S. soil science, ’98 B.A. philosophy, ’01 Ph.D. soil science) of the USAID Bureau for Food Security and Cindy Cox (’00 M.S. plant pathology/phytopathology) of the International Food Policy Research Institute. The article, “Plant perennials to save Africa’s soils,” appears in the Sept. 20 issue of Nature. Continue story →