This creates the illusion that your growing in a very small efficient space, but your using acres and acres of ocean and field to grow that food.
Neal McSpadden wrote:
I've been thinking a lot about the feed issue since I'm moving to a new place and will be setting up a new AP system.
I keep coming back over and over again to the Aztec chinampas system. Plus add in other closed-output systems like worms and BSF larvae.
I think it could be a very-nearly closed system.
Perma Republican wrote:
is it possible to hook up the tanks to a well pump? how much water needs to come in?
thank you for sharing
Brad Davies wrote:
I also have been mulling over the idea of incorporating a chinampa system. I would like to be able to fence it and use it as a paddock system for the ducks I will eventually get. Maybe even use the land area in between as a rabbit / chicken paddock. Being on a semi island might keep the rabbits from burrowing away.
Brad Davies wrote:
I believe the recommended water change for a recirculating aquaculture system (RAS) is 10% of the volume weekly. This could change based on stocking density as well as filter capacity. I had my sump hooked up with a float valve from the hose to make sure there was a constant water level. The only reason I drained mine ~30% - 50% was to water my veggie plots, approx. 1500sq ft worth.
An 8’ dia pool filled 2’ deep holds about 750gal or 100 cu feet. I have read stocking at 1lb of biomass to 1 cu foot of water is a good rule of thumb, but again there is a huge amount of variables to consider.
Next year I plan to run drip irrigation to my plots and run the pump on a timer, with that combined with the auto float valve from my hose I should be able to automate my water changes.
H Ludi Tyler wrote:
I think you'd have to filter the water first before running it through drip tubes, even if it's been filtered through a grow-bed, the water seems to have a pretty large quantity of particulates.