Welcome to the classroom blog of Mr. DeVoe - Here you will find photos, videos, class downloads, and other means to celebrate the community of Groton, biology, and environmental science.
03 May 2010
Here is the Nitrogen Cycle in action. For the past two weeks our trout tank has been host to an aquaculture/hydroponic setup (growing plants without soil). Fish waste is high in nitrogen, which happens to be an essential element for plants like this lettuce. Nitrogen is VERY abundant in the atmosphere but plants need "fixed" nitrogen in their growing medium. These seeds germinated right away and are thriving...they just can't seem to get close enough to the window though!