Underground Farming
From Dragon Eye Atlas
Developed and refined by dwarves over many millenia and sometimes used by humans or other races, Underground Farming is a set of methods to grow food without daylight.
Fungiculture is a big part of this, as mushrooms can grow without or with very little light and can be used for food, medicine and the fibers can be turned into fabrics (though not good enough for clothes) and other materials, depending on the species of mushrooms used.
In addition to mushrooms, dwarves have also cultivated a large number of other plants that grow with minimal light that can be provided by torches, magic or bioluminescent animals. These are a constant in most dwarven cities, and have been bred for thousands of years. Many of them are fish, and Underground Farming does extend to algae and water plants feeding off the light given off by fish.
This page is still incomplete and missing content or details that are planned, but have not been added yet.