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Oregon agriculture
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Author
Crop and Soil Science
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Subject
Agriculture
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Subject
Grasses
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1. [Image] Horse drawn equipment, 1926
Oregon Experiment StationCitation -
2. [Image] Harvesting with horse drawn equipment, 1922
Oregon Experiment StationCitation -
3. [Image] Threshing vetch
Oregon Experiment StationCitation -
4. [Image] Cutting vetch, June 4, 1919
Oregon Experiment StationCitation -
Oregon Experiment Station
Citation -
6. [Image] Harvesting with horse drawn equipment
Oregon Experiment StationCitation -
Oregon Experiment Station
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8. [Image] Harvesting with horse drawn equipment, 1929
Oregon Experiment StationCitation -
9. [Image] Combine harvester, 1929
Oregon Experiment StationCitation -
10. [Image] Horse drawn equipment and tractor, 1927
Oregon Experiment StationCitation