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1. Effects of Soil Management onSoil Organisms Mary Barbercheck Dept. of EntomologyPenn State University 2. In 1 teaspoon of agricultural soil there are…  Bacteria 100…

Documents Effects of Soil Management on Soil Organisms Mary Barbercheck Dept. of Entomology Penn State...

Slide 1 Effects of Soil Management on Soil Organisms Mary Barbercheck Dept. of Entomology Penn State University Slide 2 In 1 teaspoon of agricultural soil there are… …