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<p class=MsoNormal>We need experiments for high school science students to make
and use biochar. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Kelpie and Christa have provided good instructions for small
biochar stoves for students wanting to learn about biochar:<o:p></o:p></p>
<p class=MsoNormal>How to Make the Dome School Biochar stove, Kelpie wilson<o:p></o:p></p>
<p class=MsoNormal>http://greenyourhead.typepad.com/files/how-to-make-dome-school-biochar-stove.pdf<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Basic Design Principles of the Pyrolytic TLUD Gasifier Stove
in 2010 Bq Demonstrations, or "How many sausages can you grill in the
process of making 30g of biochar? Christa Roth<o:p></o:p></p>
<p class=MsoNormal>http://terrapreta.bioenergylists.org/files/2010%20biochar-bq%20demonstration%20by%20Christa%20Roth.pdf<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>What student projects can demonstrate the ability of biochar
to capture nutrients and retain them for plant growth?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Nutrient capture: are there simple leaching or column tests
where students can filter a known concentration of fertilizer elements through
samples of soil with and without biochar and directly measure the concentration
in the filtrate using something like a specific ion electrode or conductivity
tester e.g. K or nitrates, or heavy metals like Pb, or Cd?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Greenhouse/pot tests: can the students then test the same
media with and without biochar in pot tests? <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>A students recently asked if there is a way that she can
measure the amount of carbon in biochar that will be available for carbon
sequestration. Any examples or ideas?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Tom <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>T R Miles Technical Consultants, Inc.<o:p></o:p></p>
<p class=MsoNormal>www.trmiles.com<o:p></o:p></p>
<p class=MsoNormal>www.biochar.bioenergylists.org<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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