Tag Archives: cyanobacteria

What Exactly is a Biological Soil Crust?

Soil Crusts are Tiny Communities that Can Help You Build Healthy Soil Did you ever walk out in the desert following a rainstorm?  If so, you may have noticed a thin black or green layer  on the surface of the soil.   Of course. you may have noticed a sprinkling of dry, black powder on the soil surface on a sunny day too, ...

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On Solar Powered Nitrogen Factories

Recently, I was invited into a discussion on the potential for “solar powered nitrogen factories”. The dialog dealt with using legumes and grasses as cover crops to increase soil fertility. This is of course, a great strategy which farmers are adopting at large scales. As the cover crops grow, they release sugars that feed soil microbes, nitrogen rich amino acids, ...

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