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Creator
- Oregon State University. Agricultural Experiment Station 17
Topic
- Agriculture 17
- Experiments 7
- Croplands 3
- Pears 3
- Plants--Wounds and injuries 3
- Wheat 3
- Pears--Diseases and pests 2
- Irrigation 1
- Orchards 1
- Plants--Effect of shade on 1
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Work Type
- black-and-white photographs 17
- photographic prints 17
- photographs 17
Region
- Oregon >> United States 17
Format
- image/tiff 17