USA HISTORY

Detailed explanation-1: -plow, also spelled plough, most important agricultural implement since the beginning of history, used to turn and break up soil, to bury crop residues, and to help control weeds.

Detailed explanation-2: -Plough-used for tilling, the addition of fertilizers, weed removal, and turning of the soil. Hoe-It mainly helps in the removal of the weeds and loosening of the soil. Cultivator-Tractor with attached cultivators is used in ploughing.

Detailed explanation-3: -The main purpose of ploughing consists in breaking and turning up the first layer soil in order to let soil incorporate air and bring fresh nutrients up to the surface, bury leftovers of previous crops and control weeds.

Detailed explanation-4: -Chisel plough is used for breaking hard pans and for deep ploughing (60-70 cm) with less disturbance to the top layers.