Scientists at Iowa Sate University recently discovered that simply looking at soil color is reasonably as accurate as time-consuming and expensive laboratory tests. Soil color can be used as a simple, ...

We can all imagine what healthy soil looks like: Rich, crumbly, and dark brown, bursting with nutrients and ready to house your greenest veggies, most succulent fruits, and prettiest flowers. But ...

Soil color can be used as a simple, inexpensive method to predict measurements of soil organic content to assess soil quality and better understand global carbon cycles. According to Iowa State ...