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Soils have a natural characteristic called the cation exchange capacity (CEC) that allows them to hold (and exchange) cations (e.g., Ca+2 or Na+). These cations are held tight enough on the CEC that ...

I often mention my veg patch’s clay soil in this column, and that’s because soil type affects what we grow and how. Getting to know your soil is an essential part of becoming a great grower of edible ...

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 ...

Salts are compounds formed when positively charged cations such as sodium (Na⁺), calcium (Ca²⁺), magnesium (Mg²⁺) and potassium (K⁺) combine with negatively ...

CAYANA: Aren't farms great? I think I'd quite like to be a farmer. HARRY: I would love to have a go on that tractor. Actually, the farmer isgetting ready to plant some new crops, but their field ...