Why did humans begin using agriculture and stop hunting and gathering?

The appearance of agriculture, first occurred in England and later spread throughout Western Europe during the 1700th through to 1850 century's. Transforming the way primitive people who depended on hunting,gathering and fishing within their social systems survived. Principal difference's included:greater density of productive land use and use of undeveloped and waist lands. Development of of such implements such as hoes,ploughs and sickles, the introduction of crop rotation,and new crops such as potatoes and turnips.Then as communities grew so the knowledge and agricultural productivity grew.