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Charles Shapiro - Extension Soil Scientist—Crop Nutrition Charles Shapiro - Extension Soil Scientist—Crop Nutrition

Charles Shapiro speaking at a Nebraska Extension field day in the late 1980s.

December 13, 2017

It is Time to Hang Up the Soil Probe ― Reflections on a Career

By Charles Shapiro - Extension Soil Scientist—Crop Nutrition Charles Shapiro - Extension Soil Scientist—Crop Nutrition