Saturday, May 2, 2009

3/5/09 First soil samples: incubator

3/5/09
Yesterday I put my first 5 soil samples into the incubator.
I used an evaporation dish for each sample, electronic scales to weigh the soil and evaporation dishes and the incubator. I drew up a rough table on which noted down the basin number and weight of the basin, basin and wet soil, and wet soil on its own. I also included in the table but am yet to determine the weight of the dry soil and basin, dry soil on its own, weight of moisture lost, and percentage of moisture lost.
I had to set the incubator to 40 degrees celcius instead of 60 because I am leaving the samples in the incubator over the weekend instead of only a night. On Monday I will be determining the moisture content of the soil samples by subtracting the weight of the dry soil from the weight of the wet soil and subtracting the weight of the evaporation dish from that value for each sample. I cannot test the pH of the soil or salt content for each sample because I didn't order any equiptment for Monday.

1 comment:

  1. the samples stayed in the incubator for 72 hours and 15 mins to compensate for the temperature difference.

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