>>11439337Science of many different fields
Biology involves the breeding, grafting, gene editting, and so on
Chemistry when it comes to the right fertilizer, pesticides, fungicides, harvest aids, etc
Geology for creating arable fields with a good canal and filtrating system that would prevent chemicals from harming and even poisoning water ways. Teraforming poor lands is also Geology
Engineering may also get involved in building greenhouses and hothouses
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