Soil Lab - UWSP

iv. The Potassium Test resulted in a _____ level of Potassium in the sample. d. Phosphorus (P) i. Put 7 teaspoons of distilled water in a cup and add 1 teaspoon of soil extract. Stir. ii. Fill test bag to line C with the diluted extract. Add one Phosphorus Testab. iii. Shake for 3 minutes. Wait 5 minutes. iv. Compare the color to the Color ... ................
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