The bulk of soil is made up of a mixture of organic matter, rock and mineral particles ... determine soil type. The pH of a soil refers to its acidity or alkalinity and is a vital factor in ...

The mineral components of soil may exist as discrete particles ... clay-sized particles in soils fall into the class of layer-type aluminosilicates (Sposito 2008) that commonly have permanent ...

For 50 years, scientists in Großbeeren have studied how different fertilization strategies affect vegetable and soil quality.

The people of Arequipa face many challenges to their sustainable use of soil and water resources; contamination from past and current mineral resource extraction ... climate, soil type, and geographic ...