Xu Rao, the county magistrate, used his power to allocate a piece of land in a very remote area near the county seat for Xu Di to use specifically for fertilizer production.

Xu Di, along with several people from the county government's work department, hired a group of strong men. From carrying manure and composting to drying and drying, all of this was done by these men. Xu Di was busy coordinating various relationships and teaching the people from the county government how to do it. Temperature control was very important during the composting process; if the temperature was too low or too high, the fertilizer wouldn't be effective. Temperature was also crucial during drying, but since there was no thermometer available, they could only rely on experience to estimate.

Xu Di was busy for more than two months. By the time the corn needed topdressing, the first batch of fertilizer from the fertilizer factory had already come out.

Crops thrive on manure. The success of a corn harvest hinges on the summer fertilization, and the type of fertilizer used is equally crucial.

Xu Di and his men dug a hole at the base of each corn stalk and then buried fertilizer in it.

After fertilizing the corn, the sweet potato vines in the field grew quite long. Xu Di started turning over the sweet potato vines and picked a lot of tender sweet potato vines to take home for Granny Lu to stir-fry or mix with other dishes.

The potatoes were growing very well, mainly because they were being watered and fertilized properly. Looking at the lush green fields, Xu Di felt a great sense of accomplishment. If his experiment was successful and these crops were promoted, more people would be able to eat. At that time, Xu Rao hoped that more people would know about his father.

Xu Di knew his father couldn't stay in this border town forever. While the protection of the Marquis of Jingbei's heir made things safe, his father had a much brighter future. His family would eventually return to the capital. If his father didn't mature quickly, Xu Di knew their family might face ruin. From his original owner's memories, he discovered that some people prevented him from receiving proper treatment for his injured leg, and others prevented him from studying much. What good future could a son of a marquis's concubine, with a leg disability and little formal education, possibly have without parental protection?