What role will Aquaponics and Hydroponics play in future farming?
I think the role will be to produce more monoculture corporate farms that degrade the environment.
Look to the film "Our Daily Bread" by Nikolaus Geyrhalter to see the warehouse farms of Spain that have reduced employment and fouled the available ground waters through intensive year round controlled environment harvesting. Instead of replenishing the resources of the land they ship all of the nutrients away from the region and use chemical baths to supply the plants with growth needs.
It is not financially profitable yet to develop aquaculture that can be sustainable by using fish waste combined with plant growth to create a closed system of mutually beneficial symiotic farming. I look forward to new researh in this field.
That statement is not true there are people with very successful Commercial Aquaponics Business in this Country and threw out the world. Take a look at Australia and Scotland in September we formed the Nonprofit organization called the Aquaponics Association to help educate and to further grow these small commercial efforts and also to help teach people to be able to grow own year around using there apartment or patio or backyard or basement. One acre of level land can grow 240,000 vegetables and 92,000 pounds of fish. Can do do that on your farm?