Soils are composed of a mixture of sand, silt, clay and organic matter. Both the clay and organic matter particles have a net negative charge. Thus, these negatively-charged soil particles will ...

A wide variety of factors can cause yellow or brown leaves ... That means you can have a loamy clay or a sandy loam. Since ...

Desert Control, in their words, plans to use nanoclay to take unproductive desert land “from sand to hope”. Using clay to improve soils is nothing new – farmers have been doing so for ...