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CWSF 2005 - Vancouver, British Columbia

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Meghan Horlings

Accurate Analysis
Division:Physical & Mathematical Sciences
Category:Junior
Region:Pacific Northwest
City:Smithers, BC
School:Bulkley Valley Christian Secondary
Abstract:I wanted to know if soil test kits were accurate. I collected 5 soil samples and tested for pH, nitrogen, phosphorus and potassium using several do-it-yourself test methods. The samples were also sent to a commercial lab for comparison. I found that the do-it-yourself kits are not reliable.