The people in the Pyeongseong Safe Zone didn't understand why crystal cores were added to the fertilizer, but since Mr. Kim said it should be done this way, they followed his instructions without question. Although they were puzzled, their hands didn't stop moving.
Perhaps it was part of Mr. Kim's ability, like using crystal cores to alter the properties of materials or something like that. In any case, they just followed his orders.
After planting the first batch of the seeds, Kim Haru was almost ready to rest.
Next, he only had to wait for the crops to mature, and then continue turning them into seeds and plant them in the other cleared fields, following the same process as the first batch. There was no difference. The cabbage seeds required a few more days to mature, waiting for the cabbage to bloom and age, so he would just plant more potatoes in the meantime.
Anyway, potatoes produced in large quantities.