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: 1970-1980
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Plants

: Productivity
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Clip Search: 1970-1980, Productivity

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NIU Collection, Segment 15

No-Till Required More Agro-Chemicals: duration 00:52



NIU Collection, Segment 16

SEGMENT: ACTIVITIES, RETIREMENT, & REFLECTIONS: Audio duration 02:38



ISM Interviews M-Z, Segment 9

SEGMENT: FAMILY FARM, ENVIRONMENT, & PESTS: Video duration 11:13



LPL Interviews K-Z, Segment 1

Hybrid Seed, Productivity, & the Environment: duration 01:07