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  • (-) Crop and Soil Science (171)
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  1. Dr. J. R. Cowan examining regrowth, January 11, 1955

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    Dr. J. R. Cowan examining nine days regrowth on culture 237. Picture taken January 11, 1955. Plant was clipped on January 2.

  2. Dr. J. R. Cowan examining regrowth, January 11, 1955

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    Dr. J. R. Cowan examining nine days regrowth on culture 237. Picture taken January 11, 1955. Plant was clipped on January 2.

  3. Dr. J. R. Cowan examining regrowth, January 11, 1955

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    Dr. J. R. Cowan examining nine days regrowth on culture 237. Picture taken January 11, 1955. Plant was clipped on January 2.

  4. Seeding and fertilizer banding units of precision seeder, June 1960

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    Close-up of seeding and fertilizer banding units of precision seeder as set up to seed in two 36-inch rows.

  5. Precision seeder banding fertilizer and sowing seed above the fertilizer bands, June 1960

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  6. Combine harvester, 1929

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    Oregon Experiment Station

  7. Horse drawn equipment, 1944

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    Oregon Experiment Station

  8. Farm machinery for haying, 1929

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  9. Harvesting with horse drawn equipment

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    Oregon Experiment Station

  10. Artichoke digger, 1929

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    Oregon Experiment Station

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