Image Number D1319-1 |
Soil scientist Darrell Norton applies pelletized gypsum and polyacrylamide (PAM) to a soil surface to control erosion prior to a rainfall-simulation test.
Photo by Peggy Greb.
Image Number D1319-1 |
Soil scientist Darrell Norton applies pelletized gypsum and polyacrylamide (PAM) to a soil surface to control erosion prior to a rainfall-simulation test.
Photo by Peggy Greb.