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nafex - RE: [NAFEX] soil solarizaton

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  • From: "Mark Lee" <markl@nytec.com>
  • To: "'North American Fruit Explorers'" <nafex@lists.ibiblio.org>
  • Subject: RE: [NAFEX] soil solarizaton
  • Date: Tue, 23 Mar 2004 12:13:55 -0800

Bob,
Good idea about the fresnel lens. I know that people use propane
torches (eg Red Dragon) to control weeds without herbicides. I can see
the fresnel lens accomplishing the same with free solar energy. As a
kid, I used to melt lead with my giant lens. To anyone going to
experiment with this... use the same caution you would with weed torches
and wear extra dark glasses.
-Mark Lee, Seattle





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