"What is it?" Ling Yiyi asked hurriedly.
"Fertilizer!" Song He said.
Ling Yiyi froze, then suddenly understood. Clearly, she had thought of something.
"One important difficulty in desert-to-soil conversion is fertilizer. The current method is simple and crude: directly adding NPK Compound Fertilizer to the soil." Song He said, "If your Ling Bacteria could replenish a certain amount of fertility in the soil while carrying out desert-to-soil conversion, it would undoubtedly be the decisive move!"
"Nitrogen Fertilizer can be extracted directly from the air, so the technical difficulty shouldn't be too high." Ling Yiyi thought quickly. "Where do phosphorus and potassium fertilizers come from?"
"You'll have to figure that out yourself. I haven't seriously studied that area." Song He smiled. "As far as I remember, the most direct source of phosphorus and potassium fertilizers is seawater."
Ling Yiyi fell into thought.
"Any other results? If not, I'll get going." Song He made as if to stand.
"Wait, Teacher!" Ling Yiyi hurriedly said. "The three of us feel that we're in over our heads. If Ling Bacteria really has potential, would you take over the research?"
"If I take over the research now, the results will belong to me." Song He smiled. "Keep working on it. Once you've nearly finished, I can help you wrap things up and improve it. That way, the results will still be yours."
"Teacher, we don't have much confidence..." Ling Yiyi frowned. "But if you do it, it seems like you can produce any major result very quickly!"
"How can young people lack confidence? Besides, we're practically the same age!" Song He encouraged her. "This semester, focus on Ling Bacteria first. If you truly can't make headway, I'll step in and help!"
The inspection was over. The Scientific Research Team advanced steadily, and the students had