Re: sanet-mg-digest V1 #1437

William Evans (williamevans@home.com)
Mon, 15 Nov 1999 16:33:02 -0800

sanet-mg-digest wrote:
> Remembering what the summers are like in Tucson and Phoenix, you might try
> laying out black plastic sheets next spring. Temperatures should reach
> close to 200F at least 6" down
Shouldnt the plastic be clear? I woiuld think that the black plastic
would stop the sun from penetrating .It might heat the surface of the
plastic, but what about the air and soil below?..... Take two
greenhouses w/ clear plastic and shade one w/ black shade cloth... which
one will be hotter inside?
bill/10

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