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Project Help Please - Calculations in Soil Science
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13-01-2017 08:34PM#1Hey,
I am to complete a project that involves doing an experiment
'to determine the impact of each additive, the effects on samples of a
garden soil of adding 20% by mass of (a) sand, (b) potting compost, and (c) clay on the rate of drainage of soil'.
My question is:
does one add the additive that would equates to 20% of the mass of the garden soil i.e. adding 20g of sand to 100g of garden soil
or
does remove 20% of the garden soil and replace it with the additive i.e. 20g of sand mixed with 80g of garden soil.
Thanks in advance for any help!
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