Topsoil
Sign in to track this film in your collection or want list.
Discusses the importance of topsoil to everyone, demonstrates the difference in the rate of plant growth in topsoil and subsoil, pictures the formation of soil from inorganic and organic matter, and compares proper and improper plowing practices.
Related films
Sources
- 16mm Filmography (legacy record) — title, creator, length, format, color, sound, description
Original permalink · Record added 2025-10-23 03:00:46