Aztecs had the Chinampa system, which increased agricultural yields from 2 yearly to 7 yearly. however, they were wiped out in early 1500 so they couldn’t have done anything too advanced, so the chinampa is the best answer
They grew maize, beans, tomatoes, pumpkins, chilis, etc. The Aztecs contributions to the modern world are extensive, from agricultural products to farming techniques to stunning art and architecture.
