If you would like to grow root and stem tubers(potatoes, carrots, etc.) in your apartment, consider getting “biodegradable grow bags”. They aren’t expensive and can be carried around. For apartment growing, “Tea Fertilization” seems the most reasonable and inexpensive. This can be done by gathering all plant produce kitchen scraps(that most would throw away) in a pot, fill with enough water to cover the plant materials and boil on medium heat until all the nutrients have moved into the water(just like tea). Strain with a colander and use this to water your plants.