What Plants Need for Growth (Second Edition)

Duration: 11

Year Published: 1982

Creator: Encyclopaedia Britannica Educ Corp

Format: 16mm

Color: Color

Description: Demonstrates how plants depend on water, air, light, food, and warmth to survive. Illustrates, with the use of animation, time-lapse photography and laboratory experiments, the effects of these essential elements on plants and the negative effects when the plant is deprived of one or more elements. Examines some agricultural practices that enhance the food supply by controlling water and plant nutrition.

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