This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Soil and variety tests call for thorough local soil study
E W Hilgard argues that soil character and subsoil conditions must be carefully described and tested before culture and variety tests. He warns that without regional surveys and realistic field conditions, fertilizer trials mislead, and station work should focus on practical local problems rather than broad theoretical aims.
MENTIONED IN THIS ARTICLE
Germany
Liebacher
Wollny
California
San Joaquin
Aglifornia
If J. Wheeler
Barrens
Alabama
Missouri
Arkansas
Powersmabcal
Arentinge
Congress
Mississippi