Abstract

The equipment described consists of two units, with a common source of steam. In one unit, soil is sterilized by allowing soil particles to fall through steam in a rotating drum. Output is about 1 cubic yard of soil per hour. In the second unit, flats and pots are sterilized by 3 minutes' exposure to steam. Fungi and non-spore-forming types of bacteria are killed. The equipment is inexpensive and easily built.

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