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Sleuthing the nutrients that make your houseplant grow.

• Authors : Hershey, David R.

• Source: Science Activities. Winter90, Vol. 27 Issue 4, p17. 4p. 1 Chart.

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Is Not Knop's Solution What It Seems.

• Authors : Hershey, David R.

Subjects: PLANT nutrition; SCIENTIFIC experimentation; HYDROPONICS

• Source: Science Activities. Fall2001, Vol. 38 Issue 3, p17. 4p. 4 Black and White Photographs.

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Knop's solution is not what it seems.

• Authors : Hershey, David R.

• Source: Science Activities; Fall2001, Vol. 38 Issue 3, p17-20, 4p

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