He improved the moldboard plow and the polygraph, in collaboration with Charles Willson Peale.
From the en.wikipedia.org
Its central tenet is retiring the old moldboard plow, which laid the earth open to wind and water erosion.
From the time.com
This combined with the invention of a three-field system of crop rotation and the moldboard plow greatly improved agricultural efficiency.
From the en.wikipedia.org
The moldboard plow, whose introduction into Europe in the 1600s caused agricultural production to explode, had been invented in China 1,900 years before.
From the forbes.com
This period in the history of the world was marked by slow but steady technological advances, with important developments such as the stirrup and moldboard plow arriving every few centuries.
From the en.wikipedia.org
Tools including the scythe and plow were improved from classical versions, a three field system of crop rotation was invented, and the moldboard plow and wheeled plow were increasingly used.
From the en.wikipedia.org
The heavy moldboard iron plow, also invented during the Han Dynasty, required only one man to control it, two oxen to pull it.
From the en.wikipedia.org
An American agricultural pioneer named John Deere modernized the plow by shaping steel from an old sawmill blade and joining it to a wrought iron moldboard.