Hydroponics Produce grown while suspended in recycled, Nutrient rich water in an indoor agriculture method that supplies Large Quantities of fresh, insect free Produce such as Lettuce year round.
Some crops are Continuous , but in all cases Yields are higher than soil based gardens.
Where Grass for animals can be grown, this is not an Efficient production of food. A Home-Made nutrient solution can be produced from composting worm beds. Volcanic Ash will provide nutrients. Hydroponics or Aeroponics is the garden of choice for the planned Space Station . A Troubled Times TEAM is developing skills in hydroponics.