WHEN one who has been for many years both a teacher and an investigator commits to paper the facts and ideas which have formed the substance of his later courses of instruction, we expect a very ...

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: ...

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 ...

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 ...

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

The University of Delaware (UD) has rated soils in terms of the likelihood of profitable responses to additions of phosphorus (P) and potassium (K) from fertilizers, manures, and other soil amendments ...

Soil fertility is the ability of soil to sustain plant growth and optimize crop yield. This can be enhanced through organic and inorganic fertilizers to the soil. Nuclear techniques provide data that ...

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 ...

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 ...

Soil solarization is a simple and inexpensive way to use the sun to prepare a garden for planting. Solarization involves watering a patch of soil, covering it with clear plastic, then allowing trapped ...

The unique blend of fungi and bacteria in a region's soil may be the strongest factor explaining its rates of childhood ...

IT is pleasant to see that Sir Daniel Hall's book on the soil has now reached a third edition. It will have a permanent place in British agricultural literature as the first book on the subject in the ...