Soil Makers: Decomposition By Simple Plants And Insects

Duration: 22

Year Published: 1966

Format: 16mm

Description: Discusses the value of topsoil and shows the complex process by which it is formed. Relates soil formation to social insects, symbosis in plants and animals, and growth and decomposition. Discusses the results of man's enroachment on nature and uses of the soil by contrasting societies.

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