Figure 9: Examples of Mollisols (grassland soils) formed from loess. Both soils have mean annual precipitation of 450 mm. The Ustoll (a) has an ustic soil moisture regime and the Xeroll (b) has a ...

Lab tour shows how color variations in Midwest soils signal a need for customized nutrient management and seeding strategies.

A worm burrows its way through the dark earth, ingesting particles of soil and expelling nutrient-rich casts in a constant forage for food. Charles Darwin described earthworms as one of the most ...

Jose David Henao Casas does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...

Wildfires may disappear from the landscape within weeks, but their hidden effects on the soil can persist for decades. An ...

A lush Hawaiian landscape in acidic volcanic soil is proof enough that plants can thrive in all sorts of soil. While too much acidity can be deadly for plants, many prefer moderately acidic soil with ...