Soil color
Videos
Soil color is often the most visually apparent property of soil. While color itself does not influence the behavior or practical use of soils, it does indicate important information about soil organic
Soil colors influenced by mineralogy
Dark soil color imparted by organic matter in Illinois, US
Highly oxidized red soil in Tirunelveli District, India
Glauconitic, green soil from Maryland, US
The National Cooperative Soil Survey Program in the United States is a nationwide partnership of federal, regional, state, and local agencies and institutions. This partnership works together to coope
From a Report of Bureau of Soils, U.S. Department of Agriculture, 1923.