UNIT 3: Answers

Practice #1 Answers
1.  Clay, sand and silt.
2.  Clay 20%, sand 40%, silt 40%.

Practice #2 Answers
1.  To maintain calcium uptake.
     Too much sand will drain calcium away.
     Too much clay will rot roots and inhibit calcium uptake.
2.  Root rot.

Practice #3 Answers
1.  3 days
2.  8 to 12 inches 

Assessment Answers
False   1.   The particle soil ratio test, using a clear jar is a two hour test. (three-day test).

True    2.   The ideal particle ratio of tomato soil is 20% clay, 40% sand and 40% silt.

           3.   The following high level of particle often filters calcium from the soil.
                 a.  Sandy soil


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Revised December 3, 2001
Copyright Anne Premont