3. measure the pH 0.01 M CaCl2 in the mix used in the ratio. Soil: water = 1:2 scale 20 g soil in beaker filled plastic solution 0.01 M CaCl2, 40 ml glass rods together with people from time to time, often within the first 30 minutes after it set for 30 minutes, so keep the pH of the soil to measure the portion of water with pH meter.
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