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Soil Test Kit.

Grades 4 - 6; 40 tests.
Soil testing can't get much easier than this. Mix soil with water, let it settle, add a tablet, and compare the liquid to the color film chart. Includes: instructions and materials for 10 tests each of pH, nitrogen, phosphorus and potash.

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624-6120

$16.50

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Grades 4 - 6; 40 tests.
Soil testing can't get much easier than this. Mix soil with water, let it settle, add a tablet, and compare the liquid to the color film chart. Includes: instructions and materials for 10 tests each of pH, nitrogen, phosphorus and potash.

 

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