If you look back across the span of time, you see wood plows being used in 4000 BC, then irrigation five hundred years later.
The chief thing in his eyes was not the nitrogen in the soil, nor the oxygen in the air, nor manures, nor special plows, but that most important agent by which nitrogen, oxygen, manure, and plow were made effective-- the peasant laborer.
chasealdo and Rooney spend most of the game chasing long balls into the channels while Ruud plows a lone furrow up front.
Weaving his personal journey with his revelations about Chinese education, Gardner plows new ground for thinking about and fostering creativity.
ox plows " (in other words, the direction of lay alternates from line to line ).