Students in Soil Science 100 examining wet soil at UC Davis Russell Ranch, October 2016. A teaspoon of soil teems with billions of microbes that are vital to all life on Earth. UC Davis researchers ...

Lynette Abbott examines how the rhizosphere, a narrow collar of soil clinging to plant roots, is emerging as a key player in ...

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 ...

Scientists classify soil based on factors such as mineral content, texture, drainage capacity, and fertility. Globally, the 7 most common types of soil form the basis of farming and ecosystem balance: ...

Soil pollution refers to the dangerously high concentrations of contaminants in soil. While contaminants such as metals, inorganic ions, salts, and organic compounds naturally occur in soils, these ...

We offer several types of tests to meet the needs of our varied clientele. The “Soil Fertility Tests” and the “Lead Screening Test” are the tests most commonly used by farmers, homeowners, landscapers ...

Soil pH or soil reaction is an indication of the acidity or alkalinity of soil and is measured in pH units. Soil pH is defined as the negative logarithm of the hydrogen ion concentration. The pH scale ...