USA HISTORY

Detailed explanation-1: -Iron sickles-Farming tools such as iron sickles and plow tips were used by farmers to maneuver tougher soils efficiently.

Detailed explanation-2: -The steel plow was used to break up tough soil, bury crop residue, and help control weeds. Due to the rich soil in the Midwest of the United States, wood plows would commonly break.

Detailed explanation-3: -During the 1800s farmers took everything from a simple hoe to a thresher “snorting black smoke” into Iowa fields in pursuit of better harvests. Machines were run by hand, by oxen or horses, and finally by steam engines.

Detailed explanation-4: -Eventually, the plough was developed to cut a long soil slice and turn it upside down, burying the surface residue, conserving moisture, aerating the soil and killing weeds.

Detailed explanation-5: -The earliest ploughs with a detachable and replaceable share date from around 1000 BC in the Ancient Near East, and the earliest iron ploughshares from about 500 BC in China. Early mould boards were wedges that sat inside the cut formed by the coulter, turning over the soil to the side.