Add Yahoo as a preferred source to see more of our stories on Google. Photo caption: This undated photo shows a shovelful of soil in New Paltz, N.Y. Good care, mostly by regularly adding plenty of ...

CORVALLIS, Ore. - It's a simple equation: If you want to grow better plants, you first need to understand the soil. "The texture of a soil is its proportion of sand, silt and clay," said James Cassidy ...

Sand and silt in rivers dramatically change their means of transport at a sharp boundary between grain sizes, regardless of how fast the river flows. A universal transport algorithm revealed the break ...

Proposals to treat and dispose of contaminated silt dredged from an Isle of Man marina at the site of a former mine have been thrown out by planners. The planning committee rejected the government's ...