conventional non vegetarian farming. no extra input needed.
Its is a cycle where one farming out is used as input for other farming. Requires 50 sq ft and some bamboo made 3 storied level structure.
grow locusts in small quantities in side chicken room or cage. locust are rich in protein and perfect diet for chicken.
https://youtu.be/ZI9XU4Jqy9Qvideo
level 1
chicken poop as food for fish. Eggs are also produced which can be consumed or bread for live stock. One egg per chicken is guaranteed.the water in which fish poop and lived is enriched sources of nitrogen. This can be used for vegetable and leafy plants.
level 3
Hydroponics or soil less farming. the water outlet from fish aquarium can be directly used in plants.
The plants can directly be put in aquarium itself if needed.
the waste in our kitchen and outer waste of vegetables can be used as a food to chicken.Also chicken needs protein to gain mass and it is possible through insects, House flies eggs and worms. Food Grains must be sored in a corner of the house soaked in water. A few days later eggs and larva are formed which are good source of protein.
I propose these can be done in old buildings or outskirts in a three level structure.