Fueled by economic pressure to maximize crop yields and government incentives to produce only one type of crop, contemporary American farmers have been facing a crisis reminiscent of one that hit the Great Plains in the...

Surface Runoff: The objective of this resource is to examine the effect of soil type, ground cover type, and rainfall amount on the quantity of water runoff.

Soil is essential for life on Earth. It is needed for food, air, clothing and so much more. Discussion topics include the terms 'soil', 'dirt', and 'sediment', factors affecting the formation of soils, soil horizons, and...

This resource from the University of the West of England, Bristol contains undergraduate level learning materials focused on soil characteristics and the determination of soil properties.

This Web site by the Mississippi State University Extension Service discusses why fertilizers are added to soils. The Web site begins by introducing the concept of the pH of the soil and how nutrients are affected by...