Qin Dynasty: Your Majesty, I really am a time traveler.

"You're Cai Kun?"

After returning to his palace, Tang Yu received Cai Kun.

His first instinct was to ask, "Can you sing, dance, rap, or play basketball?"

After thinking about the times we live in, I held back.

At this moment, Cai Kun looked at Tang Yu and answered respectfully.

"Yes, Your Excellency, I am Cai Kun, the son of the Cai family!"

"So what brings you here today?"

Tang Yu was somewhat puzzled, as he had heard of the Cai family to some extent.

After all, the imperial court is, in a sense, a microcosm of the entire society and the country.

The philosophers of the Hundred Schools of Thought all had their own place in the imperial court.

Aside from the fact that the relationship between the Mohists and the Qin state was so bad that no one had a close relationship with Qin,

The other Hundred Schools of Thought are all quite related, and the Cai family is the representative of the Farmer School.

"Your Excellency, I have come here today for no other reason than to express my gratitude!"

"grateful?"

Tang Yu looked up with some confusion and looked at Cai Kun in front of him.

He remembered that he had no connection with the Cai family, so why should he express gratitude?

At this moment, Cai Kun straightened up, his expression unusually serious, and then spoke.

"Cai Kun is thanking the Grand Preceptor on behalf of all the people of the world, on behalf of all the farmers in our Great Qin, and on behalf of everyone in the Qin Kingdom who is able to eat their fill thanks to the Grand Preceptor's sweet potatoes and potatoes."

Upon hearing this, Tang Yu, who had assumed the other party needed his help, immediately straightened up and quickly helped the other party up, his tone very sincere.

"There's no need for thanks. I am the Grand Preceptor of Qin, and it is my duty to contribute to the development and future of Qin!"

"Besides, the people I am benefiting are the people of my Great Qin. As their national advisor, isn't it only right that I find ways to provide them with food?"

"This... is the Grand Preceptor truly right? It was Cai Kun who was presumptuous!"

Cai Kun had expected Tang Yu to accept his thanks, but Tang Yu's righteous and righteous refusal left Cai Kun completely bewildered.

However, he became even more convinced of his inner thoughts: this Grand Preceptor was definitely a top-notch person!

If the future of farming can be entrusted to such people, there may be hope for the future.

"In that case, I still have a question I'd like to ask the Grand Preceptor."

Seeing Cai Kun's devout expression, Tang Yu quickly nodded, after all, he was different from those bastards at Rujia.

They came to me seeking advice because they genuinely cared about the development of the Qin state and its people.

"Feel free to ask!"

"How should potatoes and sweet potatoes be bred to achieve the best planting and harvest results?"

"At the same time, how many times a year should it be planted, and what other planting techniques are there? I wonder if the Grand Preceptor has any summary of these?"

"This……"

To be honest, Tang Yu has little experience in growing potatoes.

It was the experience I accumulated in my previous life when I was working on the farm with my grandparents in the countryside.

It's incredibly rare!

Fortunately, potatoes and sweet potatoes are both very easy to grow; it takes some skill for an average person to kill them.

Therefore, Tang Yu wasn't too worried.

However, upon hearing the other party's words, Tang Yu realized that he had been too reckless.

Perhaps this is the difference between myself and the people of the Hundred Schools of Thought.

The way these farmers think and their ideas are truly professional; I am indeed no match for them.

So he lowered his head and said in a somewhat ashamed tone.

"To be honest, as for the planting and harvesting of potatoes and sweet potatoes, I seem to be..."

"Ding dong!"

Before Tang Yu could finish speaking, he heard a notification from the system, so he quickly stopped talking and turned his attention to the system.

Sure enough, Tang Yu found a handbook called "Encyclopedia of Crops" in the system.

It details how each crop should be planted in this era and how to maximize land use.

How can we maximize soil fertility protection and harvest?

How should we deal with various agricultural problems and disasters under different circumstances?

Tang Yu spoke up immediately.

"I've actually done some research on this!"

Seeing Tang Yu's rapidly changing words and expressions, Cai Kun looked somewhat puzzled.

However, I'm still listening to Tang Yu's story.

"So potatoes and sweet potatoes should be..."

"...and this situation."

By the end, Cai Kun's gaze towards Tang Yu had lost its initial respect, and instead became one of reverence, as if looking at a deity.

He learned from the Grand Preceptor how to cultivate and plant crops, and how to prevent and control pests.

I even heard all sorts of new words that I had never heard before, but I knew immediately that they were definitely related to the future development of the farm!

Indirect cultivation methods and maximizing soil fertility are all extremely profound knowledge for farmers!

Even though the farmers haven't noticed yet, Cai Kun, with his keen sense of smell, can tell that each of these things is closely related to the Long family.

"How...how did the Grand Preceptor learn about these things?"

Cai Kun could hardly contain his shock, while Tang Yu said...

"This is the great principle of the world, which can only be known through each observation and each experiment. I only learned it by chance."

It wasn't that Tang Yu didn't want to accept the title, but he knew that behind it all lay an immense amount of sacrifice.

If he were to take all the credit for himself, it would be a disservice to the researchers who have worked tirelessly behind the scenes.

He looked at Cai Kun in front of him, his eyes shining.

He knew that perhaps more than 2000 years from now, these people from all walks of life would be pioneers in their respective fields and the hope for the future of China.

They are called farmers now, but in the future they may become agricultural scientists who will develop various crops to ensure the country's development.

At this moment, Cai Kun, who had originally come to make a brief acquaintance with Tang Yu, was deeply impressed by Tang Yu's vast knowledge and bowed respectfully to him.

"Thank you for your guidance today, Grand Preceptor. Cai Kun takes his leave!"

He wanted to go back and report everything to his father, so that the two of them could make a decision.

He sensed the future development of the Qin state, the future of the peasantry, and the aspirations of the people of Qin and the entire peasantry...

Perhaps... perhaps it all lies within Tang Yu alone.