The Patriarch of Demonic Dao Only Envy and Forget Envy but Not Immortality

I'm willing to be dragged until I'm dislocated, ah, a man in love

Damn, is Baitu City mainly focused on commerce? It feels like this is the Warring States Period after all, agriculture may be more important, and commerce doesn't seem to have such a big market? Would it be more practical to improve farming methods, popularize chemical fertilizers, and improve grain seeds and agricultural tools? There are also iron smelting technologies, etc. During the Warring States Period, farming with iron plows and oxen should not have been popularized yet.