16mm Filmography
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Potassium For Agriculture

Year Published: 1978

Creator: Amer Potash Inst

Format: 16mm

Sound: sound

Description: Describes the production of potassium in the United States and Canada. Illustrates the action of potassium in the soil and discusses how to test soils and plants to determine their potassium needs.

No holdings listed.

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Original permalink · Record added: 2023-02-27 03:15:09