Asia and Africa have rich historical polyculture traditions.

https://en.wikipedia.org/wiki/Polyculture?wprov=sfti1#Histor...

From Wiki: https://en.wikipedia.org/wiki/Three_Sisters_(agriculture)

    > Geographer Carl O. Sauer described the Three Sisters as "a symbiotic plant complex of North and Central America without an equal elsewhere".

It's not quite the same but growing carp alongside rice in a paddy. The fish eat pests and fertilise the water.

There isn't one; closest is: https://en.wikipedia.org/wiki/Crop_rotation

Probably rice cultivation with an understanding of irrigation