Techniques. In the context of developing nations or other pre-industrial cultures, most farmers practice a meager subsistence agriculture—a simple organic-farming system employing crop rotation, seed saving, slash and burn, or other techniques to maximize efficiency while meeting the needs of the household or community.One subsisting in this way may become labelled as a …

Fishing is a prehistoric practice dating back at least 40,000 years. Since the 16th century, fishing vessels have been able to cross oceans in pursuit of fish, and since the 19th century it has been possible to use larger vessels and in some cases process the fish on board.Fish are normally caught in the wild. Techniques for catching fish include hand gathering, spearing, netting, …

Many people still live by subsistence agriculture, on a small farm. They can only grow enough food to feed the farmer, his family, and his animals. The yield is the amount of food grown on a given amount of land, and it is often low. This is because subsistence farmers are generally less educated, and they have less money to buy equipment.