Zhu Youxiao wanted to emulate the practice of military science by training naval commanders in a theoretical, systematic and practical manner, so as to improve the quality of the Ming army's navy officers.

But this goes against the traditional growth and promotion of naval commanders, because naval commanders in the Ming Dynasty basically learned and practiced at the same time, and rose step by step from practice.

Moreover, naval officers need to be familiar with not only combat, but also driving, navigation, sea conditions, wind direction, and even astronomy and geography. According to Zhu Youxiao's requirements and standards, it is really a bit too high.

Zhu Youxiao fell into deep thought. Could it be that the navy and the army could not be the same?

Looking through the question book, Zhu Youxiao read it carefully again and finally felt that he had found some problems.

It’s still a problem of education level, and there are few naval generals, while the training period in naval academies is long.

The reason why martial arts can be learned quickly is that the Ming army has many generals in infantry and cavalry, and the main thing they learn at present is the tactical application of muskets and bayonets.

It seems that I didn't explain it in detail enough, which led Shen Yourong to misunderstand it.

Zhu Youxiao figured it out and wasn't about to change his plan. Theorizing and systematizing knowledge, replacing empiricism, was a scientific approach to development and there was nothing wrong with it.

The aroma grew stronger and stronger. With the sound of hurried footsteps, Wang Tigan trotted in with a plate in his hand. He presented it to the emperor with a smile, "Your Majesty, the sweet potatoes are roasted. They smell so tempting!"

Baked sweet potato! Zhu Youxiao looked at the peeled sweet potato on the plate, revealing the golden, soft, hot flesh. He couldn't help but laugh, reached out to take the spoon on the edge of the plate, scooped out a piece and put it in his mouth.

Mm, it’s fragrant, sweet, soft, glutinous and hot. When you eat it, you feel comfortable all over.

"Wang Daban should also try it. It is really sweet." Zhu Youxiao said with a smile: "Tell the palace maids to roast more and send it to the concubines in the harem. If they like it, we can ask the imperial kitchen to prepare it."

Wang Tigan agreed repeatedly and said with a smile, "I will arrange it right away, Your Majesty, don't worry." After that, he bowed and walked out.

Zhu Youxiao ate the roasted sweet potato bite by bite. It was a familiar feeling, and he also planned to make everyone in the Ming Dynasty have that feeling.

If for no other reason, just to advertise sweet potatoes.

The Daming Forum should publish information on sweet potato production and suitable growing areas. Roasted sweet potato vendors should also be present on every street corner, spreading their sweet aroma.

Of course, the imperial court’s policies towards local areas were also essential. Without the imperial court’s coercion and guidance of local officials, how many lifetimes would it take for farmers to realize the benefits of growing sweet potatoes?

Li Chengcheng walked in, knelt down and saluted, then returned to the small table obediently and picked up a pen to do the accounts.

There was still a smear of gray on her face. It seemed that she had eaten the sweet potato, but she didn't know if she had hidden it. Zhu Youxiao was a little amused, but he didn't tease her.

………………

Changchun Palace.

Zhang Wan'er held a piece of roasted sweet potato and ate it happily. There were some burnt gray and black spots on her little face and the corners of her mouth.

"It's sweet, sticky, and fragrant." Zhang Yuer put down the spoon and praised with a smile: "Roasted sweet potato, right? Can I eat it often in the future?"

The maid was also unsure and replied, "This servant doesn't know either. Your Majesty, would you like to summon the eunuch who was sent here to ask him in detail?"

Duan said, "The reward from His Majesty must be something precious. It wouldn't be easy to eat more, right?"

"Forget it, let him go back! Thank you for the reward from the Emperor on my behalf." Zhang Yu'er shook her head slightly. Although she loved eating, she didn't want to be annoying. If it was really precious, wouldn't she be asking for more?

As she was speaking, a palace maid came in and reported, "Your Majesty, Eunuch Zhao has brought a message from His Majesty, saying that if you like to eat these roasted sweet potatoes, you can send someone to notify the imperial kitchen."

Oh, Zhang Yuer raised her eyebrows, very happy.

Zhang Wan'er, who was standing next to her, had her eyes sparkling. She looked up and said crisply, "Sister, I still want to eat."

Zhang Yuer smiled, reached out and called her younger sister over, wiped the little cat's face with a silk handkerchief, and said softly, "Forget it today, it's getting late. Tomorrow, tomorrow I'll send someone to get it for you."

"Okay!" Zhang Wan'er nodded sensibly, then reached out and carefully touched her sister's belly. She asked doubtfully, "Is there a baby in there? How small would he (she) be?"

Chuckling, Zhang Yuer laughed crisply, stroking her little sister's head and said, "He (she) will grow up, and so will you!"

Zhang Wan'er blinked her big eyes, not quite understanding what was going on, but her mother had already pulled her aside and forbade her to touch it again.

Zhang Yuer gently stroked her lower abdomen and felt it was a little bulging, but not very obvious.