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The Graceful Marist 2010
Wednesday, April 7, 2010
link
http://en.wikipedia.org/wiki/Soil_pH
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Bryan Foo's product reflection
product reflection
Product reflection
list of alkalinic foods...
Scoop some soil into a container. Then, add a half...
Go to this link...
Use of litmus paper. A small sample of soil is mix...
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how to reduce or increase soil ph value
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