This is an idea to grow about acres in your sq.m area. this isn't saying about upgrading the crop yield but what about a building of greens? Indoor planting but amount of fields...
to try the possibility of the proper growth and survival of plants in the human made environment, I preferred to make a small model. it is about 7 feet taller. the model is having 21 floors . it takes space of 4 feet and holds capacity of 21 feet
that is the point of use!
Step 1: Step 1: needs
1 ) old metal sheets (21)/ you can use anything else but strong.
2 ) rods- 7 feet tall (2)
3.5 feet tall (2)/ you can use more for more support.
3) seeds depending on needs.
4) a place where a pure sunlight strikes the ground slantingly.
5) some bending pipes
6) use some drip system equipment for irrigation.
7) a bottle or any plastic container that can hold water.
8) silence, concentration and time.