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: 1940-1950
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: Manure
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: Productivity
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Clip Search: 1940-1950, Manure, Productivity
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NIU Collection, Segment 5
Diversification to Specialization & Increased Use of Fertilizers
: duration 01:43
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Audio/Video
Audio
(1)
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Oral History Clip
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Dates
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» 1940-1950
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Changes in Farming Methods
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Crop Rotation
(1)
Fertilizer
(1)
Manure
(1)
Productivity
(1)
