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Creator
- Oregon State University. Agricultural Experiment Station 27
Topic
- Plants, Cultivated--Field experiments 27
- Sulfur fertilizers 27
- Oregon Agricultural College. Experiment Station 24
- Potassium fertilizers 6
- Nitrogen fertilizers 5
- Phosphatic fertilizers 1
Format
- image/tiff 27
Collection
- Historical Images of Oregon State University 27
- OSU Special Collections & Archives Research Center 27