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- Agricultural machinery 52
- Croplands 10
- Straw--Utilization 8
- Combines (Agricultural machinery) 6
- Harvesting machinery 6
- Harvesting 6
- Agriculture 5
- Fruit--Harvesting--Machinery 5
- Burning of land 2
- Fescue 2
- Hay 2
- Scrapers (Earthmoving machinery) 2
- Sowing--Equipment and supplies 2
- 4-H clubs 1
- Central Oregon Agricultural Research Center 1
- Engineers 1
- Farm tractors 1
- Fences 1
- Indians of North America 1
- Peas 1