After asking some laborers to send the iron ores to an earthen kiln outside of the city and making an appointment for the next day, Ren Baqian went to the Department of Agriculture and Livestock to find Ge Yihong. Then, he taught Ge Yihong how the sweet potatoes germinate, how to cultivate them, where they should be planted, and so on and so forth.
Everyone already knew the potential output and the taste of sweet potatoes; therefore, they had no doubt about this new crop. Ren Baqian merely gave them some information to note. He did not need to worry about the rest as everyone already knew what should be done.