The three spirit fields An Jing used for his experiment had all matured, with the spirit plants grown using three different types of fertilizer proving successful.
"To think they all accelerate the growth of spirit plants!"
This unexpected result brought a smile to An Jing's face. He stepped forward to inspect them closely, nodding in approval. "Indeed, they are effective. The specific rate of progress does vary slightly depending on the type of spirit plant, though."
Chapter 424