Wei Qingwan held back her tears, tolerating the pain as she ripped away her torn skirt hem, and carried on following Wei Ruo's footsteps.
After travelling a little further, Wei Ruo stopped, pulled out a tool, and began to dig.
This tool, specifically custom made for Wei Ruo, had a hollow cylinder on the front end and a long handle in the back.
Wei Ruo would thrust this tool deep into the soil, then pull it back out with force. This allowed her to extract soil from the surface to fifty centimeters deep, with the extracted soil maintaining its original strata.
Once taken back, such soil samples would allow Wei Ruo to meticulously study and analyze the alkalinity of the soil, hence developing respective plans for improvement.
Wei Ruo then packed the collected samples into a bag, marking the locations from where they were collected.
After she finished digging, she continued on her path, proceeding to the next location to dig again.
