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Soil Secrets

 
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More good soil lecture info from youtube ecoversity. These are short clips

Humus



Rhizobia and Mycorrhiza



More on Mycorrhiza



On soil pathogens




 
Landon Sunrich
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USDA-NRCS State agronomist Mark Scarpitti demonstrates the water holding capacity of tilled and no till soils in Ohio with simple easily reproducible at the home scale tests.

http://www.youtube.com/watch?v=q1aR5OLgcc0

NRCS- Brief animation of how water moves within soil - mostly a plug for their soil survey site

http://www.youtube.com/watch?v=vmo0FRAVgkM
 
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