PLANT SPEAKS, SOIL TESTS TELL US WHY

Taking of soil samples on the farm and interpretation of soil tests.
Complete catalog record
Dewey number: 631.4
Audience level: jh-sh-c-adult
Format/cost: 16-sd-color-loan
Distributors / rental: Syracuse University loan

Sources

  1. Educational Film Guide 1946 — title, year, creator, length, format, sound, description, catalog record