For the few people being able to have access to those lot gardens, maybe.
The big thing is when you run the numbers.
The minimum amount of lang needed to feed a person in optimal conditions is around 1000m².
In a city like Madrid each person has available around 100m² and in that space it goes all the housing, public spaces, services, streets, etc.
How much space could be taken from everything else to create urban farming land? It’s really hard to think that it wouls be enough to even amount for more than a few percent points of what it’s needed.
And we have to take into account that all urban space dedicates to farm won’t be usable for anything else. When you try to universalize it the numbers are just really hard to reconcile.
This, yes, if you want to feed the whole town from inside production, the try isn’t reasonable. I have heared London has a company doing soilless agriculture inspired by canabis factories… I am not sure how it went.
Yet if you take it at an individual level, being part of a 100m2 community (each have their own lot) can be interesting, if well organized.
tankfox@bookwyr.me 5 hours ago
Community gardens are not at all intended to be the only source of food, it allows a fixed labor cost from a family to produce the greens and veggies that would otherwise have to be purchased ‘fresh’ from the store. That’s it. So you can take someone who is under or unemployed and turn that unpaid time into a replacement for an otherwise expensive food for the family.