Less common elements in fertilizer practice
By: Oswald Schreiner
Contributors: United States. Bureau of Chemistry and Soils; National Broadcasting Company
Published: 1931
Language: eng
Subjects: Soils; Radio programs; Composition; Fertilizers; Radio addresses, debates
Notes: Caption title.

"A radio talk by Dr. Oswald Schreiner, Chief, Division Soil Fertility, Bureau of Chemistry and Soils, delivered through WRC and 39 other radio stations associated with the National Broadcasting Company, Wednesday, January 7, 1931."

Network: NBC ; Date: January 7, 1931