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Robert E. Stewart
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BIOGRAPHY

Distinguished Professor of Agricultural Engineering, Texas A&M University, College Station, 1968–80.

Primary Contributions (3)
cultivating soil
Tillage, in agriculture, the preparation of soil for planting and the cultivation of soil after planting. Tillage is the manipulation of the soil into a desired condition by mechanical means; tools are employed to achieve some desired effect (such as pulverization, cutting, or movement). Soil is…
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