Subsistence farming, also called subsistence agriculture, is a form of farming in which the family works to produce only enough goods to support the family unit, without excess intended for sale and trade. Subsistence farmers grow a variety of crops and keep several types of animals in order to cover a large range of dietary needs.
Subsistence farming began during the Neolithic period, when tribes began settling along rivers, mainly the Euphrates and Nile, and planted basic grains such as barley and wheat in order to support their family and allow for domesticity at a single site. Families in nonindustrial regions throughout history have used this style of farming to support the family unit. This lifestyle forced people to migrate when the land became depleted and would no longer support an ample crop. As capitalism expanded, subsistence farming moved toward extension. The practice had fallen out of common use in Europe by the time WWI began, and largely ended in America shortly thereafter. It is still commonly used in remote areas of Africa, Asia and South America where native people remain isolated and trade is less widespread.
Those who choose to live by subsistence agriculture produce only enough produce to support their families. They plant crops according to the number of members in the household, carefully planning production and rationing food to ensure there is enough produce to feed the family for a full year, stretching from harvest to harvest. Subsistence farmers and their families work to be content with what the land provides, rather than going to the market to buy products that they want. The farming is low cost and low maintenance. It is fully organic, so if plants are fertilized, it is largely accomplished with manure.
The size of the land plot required for subsistence farming depends on the number of family members who must be provided for, the type of crops being planted and the average annual yield of the land in question. It can take anywhere from a quarter of an acre to 10 acres to supply the needed nutrition for one person annually.
Subsistence farmers produce what is necessary to support their family and, therefore, must plan for balanced nutrition. They plant basic grains, fruits and vegetables, and in some cases, plants such as cotton for cloth fibers. They also raise a variety of animals as a meat source. The specific plants and animals raised by a farmer is dependent on the land that is available to the family; they must grow crops and raise animals that are suited to their climate and soil type. A subsistence farmer can supplement what he raises by hunting and gathering those natural resources available to him locally.
Survivalists believe that the ability to return to a form of subsistence farming is an essential skill. In case of warfare, global natural disaster or epidemic, the family unit could survive on what they were able to produce should trade and marketing systems fail.