Li Shimin nodded with satisfaction. When he thought about having the kind of heater that Qin Yu mentioned that could keep people warm all day long in winter, Li Shimin felt happy in his heart.

With heating but no coal, it is just as difficult for a clever woman to cook without rice. Qin Yu thought for a while and then said, "Your Majesty, the common people want to ask your Majesty for something."

"Oh? What's the matter?" Li Shimin looked at Qin Yu curiously when he heard this and asked.

"The common people would like to ask for the mineral rights of the coal mines in the southern mountains." Qin Yu bowed and responded.

"Coal mine? What is this? What are mineral rights?" Li Shimin was slightly stunned and asked with some confusion.

"Your Majesty, this coal mine produces coal, a kind of stone that can burn. The mineral rights are that no one except ordinary people can mine the coal privately." Qin Yu wanted to laugh in his heart, but did not dare to laugh out loud. He quickly bowed his head and bowed his head.

said.

"Stone? A burning stone?" Li Shimin looked at Qin Yu with a dumbfounded look, shook his head helplessly, and then said, "You kid thinks about all kinds of nonsense all day long. Since you want it, I will give it to you."

"Thank you, Your Majesty. I will ask Your Majesty to give you your decree later. In this way, the common people can be justified." Qin Yu was overjoyed when he heard this and quickly bowed and worshiped.

Qin Yu did this to prevent others from going to the mountains to mine coal indiscriminately after knowing the benefits of coal mines. If this pit or that pit is dug deep, there may be dangers. It is better to plan in advance to save money.

This and that happened.

As for making money from coal mines, Qin Yu also has some ideas, but at present, the chance of Datang making big money from coal is not high, because the demand is there, but Qin Yu is really ruthless. He directly gave up that mountain range.

After the coal was known to people, there was no way to mine it. Who told Li Shimin to give the coal mine to Qin Yu?

Li Shimin saw Qin Yu's seriousness and shook his head helplessly. He sighed, "Okay, I will give you an order, but Yunfei, you have to make this heater for me as soon as possible, otherwise, I will punish you.

.”.

"Don't worry, Your Majesty, the common people will do their best." Qin Yu replied with a smile. To be honest, Qin Yu is really not worried about not being able to make the heater. It's just some pipes and radiators, but the threads of the connecting pipes are troublesome.

A little bit. But it’s not a big problem. Just get a gear hobbing machine. If you can’t do it automatically, just get a manual one. It’s not a big problem.

Li Shimin nodded with satisfaction. Qin Yu brought many surprises to Li Shimin from time to time, and this time it was another big surprise. Especially this year's winter seems to be earlier than in previous years. It must be an unusual winter.

With the heated kang heater, Li Shimin felt relieved.

At this time, Li Shimin suddenly thought of something, and then asked, "Yunfei, how many more days will it take for the sweet potatoes?"

Qin Yu nodded, "Your Majesty, the stems and leaves of these sweet potatoes have turned yellow. They need to be dug out in a day or two. Due to the weather, we cannot wait any longer, otherwise they will spoil."

Li Shimin's eyes suddenly lit up when he heard this, and he immediately said, "In that case, it just so happens that I will go and see today whether the sweet potatoes are as magical as you said."

"Yes, Your Majesty." Qin Yu naturally wasn't worried about the yield of sweet potatoes. Li Shimin wanted to see it today, so Qin Yu didn't care and immediately bowed and said.

Li Shimin smiled slightly, and then told Eunuch Yang, "Gather all the ministers here and follow me to Qingfengju to take a look at the sweet potatoes."

"It's your Majesty." Eunuch Yang bowed and said, and left in a hurry. Li Shimin's words were simple, but if the civil and military officials of the court were summoned, it would not be solved in an instant. They could only send out a large number of people, otherwise it would be difficult to solve the problem.

Time really comes in no hurry.

When the emperor travels, the Yulin Army will naturally accompany him. Qin Yu sees Hou Changqing again. This boy is still the same as before. He didn't give Qin Yu a good look. When Qin Yu saw this, he curled his lips in disdain. Hou Changqing was immediately angry.

Light, you can see it from his chest that keeps rising and falling.

An hour later, civil and military officials from all over the court gathered in the palace. Li Shimin gave an order and the long procession marched towards Qingfengju. This caused a sensation. The people of Chang'an stopped to watch. Of course, no one dared to block the way.

That's not asking for death.

At Qingfeng Residence, Gou Dan Gou Sheng, the gatekeeper, saw the long queue at a glance. They were all stunned. Gou Dan looked better and pointed at Li Shimin's carriage and said with some fear, "Gou Sheng, look, is that right?

His Majesty's carriage."

Gou Sheng looked at it carefully for a while, then he was stunned and shouted quickly, "Quickly, inform Madam that your Majesty is here."

When Goudan heard this, he hurriedly called a maid, and said anxiously, "Quick, tell Madam, your Majesty is here."

The maid was stunned for a moment, and then ran towards the back house. Not long after, Cheng Lingyun and Cui Mengyao learned the news. They were shocked. The emperor was coming. They originally wanted to make arrangements, but now there is no time. Cheng Lingyun

In the end, he gave up the arrangement and went directly to the foot of the mountain with Cui Mengyao to wait.

After the team arrived, Qin Yu quickly ran to the front to lead the way for Empress Li Shimin's eldest grandson. He saw the frightened Cheng Lingyun and Cui Mengyao at a glance, and then whispered, "It's okay, Your Majesty is here to see the sweet potatoes."

Cheng Lingyun, Cui Mengyao naturally knew about the sweet potatoes, especially Cheng Lingyun. After hearing this, she looked at Qin Yu with some uneasiness. Qin Yu gave Cheng Lingyun a reassuring look, and then looked at Li Shimin and Queen Changsun who were walking over.

"I pay my respects to Your Majesty, the Queen." Cheng Lingyun and Cui Mengyao all stepped forward and bowed.

Empress Li Shimin's eldest grandson smiled and nodded. At this time, Li Shimin was stunned when he saw Cui Mengyao next to Cheng Lingyun. Seeing this, Cheng Lingyun quickly said, "Your Majesty, this is my cousin."

Li Shimin nodded, then looked at Cui Mengyao, frowned for a moment, and then looked at Qin Yu, but it was Li Shimin who noticed something was wrong with Cui Mengyao's state. Qin Yu naturally knew what Li Shimin's eyes meant, and quickly bowed

He smiled and said, "Your Majesty, Queen, please come inside."

Li Shimin nodded, and then took Empress Changsun's hand and walked up the mountain, followed closely by Qin Yu, Cheng Lingyun, Cui Mengyao, and then the civil and military officials of the Manchu Dynasty.

Of course, Cheng Yaojin and Qin Qiong were among them. But at this moment, their faces were full of worry, fearing that something might happen to the sweet potato. After all, the civil and military officials of the court were here, so it would be difficult to plead for mercy.

Arriving at the place where sweet potatoes and potatoes were planted, Li Shimin saw five conspicuous corn plants at a glance. He was stunned for a moment. When Qin Yu saw this, he quickly said, "Your Majesty, this is exactly the corn that the grassroots said."

When Li Shimin heard this, he stared at the corn for a while. Then he nodded, and then came to the place where the sweet potatoes were planted. Looking at the sweet potatoes with withered stems and leaves, he took a deep breath, and then said, "Start digging."

Bar.".

The eunuchs in the palace immediately stepped forward. One by one, they carefully touched the soil on the sweet potatoes with their hands, for fear of damaging them a little and being punished by Li Shimin. It would be crazy if these eunuchs didn't know the importance of these things in such a big scene.

When the first piece of sweet potato appeared in front of everyone, Li Shimin and all the civil and military ministers were relatively calm, and the same was true after the first piece of potato was unearthed.

When the sweet potatoes were unearthed one after another, everyone could still remain calm. However, when the basket containing the sweet potatoes was full, everyone suddenly lost their composure. Everyone looked at me and I looked at you, and they all gasped.

Li Shimin exhaled a long breath. Before, he was worried that the yield of sweet potatoes was too low, but now it seems that Qin Yu simply lied at first. This is not ten stones, but at least twenty stones. Li Shimin is extremely satisfied.

He nodded, and when the last piece of sweet potato was dug out, Li Shimin said, "Go and calculate the yield."

"Yes, Your Majesty." Da Si Nong saw Li Shimin looking over. He quickly bowed and responded, and then led someone forward to calculate the yield of sweet potatoes.

After burning the incense, Da Si Nong hurriedly ran to see Li Shimin, bowed with great excitement and said, "Your Majesty, after my calculations, the yield of sweet potatoes per mu can reach 80 shi per mu, and the yield of potatoes can reach 80 shi per mu.

The yield per mu is sixty shi."

"Hiss." Everyone present except Qin Yu gasped after hearing this conclusion, even Li Shimin's eldest grandson Queen.

Li Shimin was a little excited and asked, "Seriously?"

Da Sinong quickly bowed and responded, "Your Majesty, this is the case. I have repeatedly calculated it many times and it is indeed possible to achieve this kind of output."

"Okay, okay." Li Shimin roared, and all the civil and military officials bowed and said, "God bless the Tang Dynasty, long live my emperor."

"Hahaha." Li Shimin looked up to the sky and laughed very happily. Qin Yu deliberately told Li Shimin that the sweet potatoes needed to be detoxified to ensure the yield, but looking at the current situation, Qin Yu wisely kept his mouth shut.

Qin Yu naturally knew that this was not a good time to say this, so he would wait until no one was around to say it.

At this time, Li Shimin looked at Qin Yu with excitement and said, "Yunfei, you have made great contributions to the Tang Dynasty."

Qin Yu smiled and bowed and said, "Your Majesty, this is a matter for common people."

Li Shimin patted Qin Yu's shoulder heavily, and then said, "It's a matter of course, Yun Fei, I once said that if this sweet potato can succeed, then I will allow you to marry your wife, and I will do it again."

I promise to marry my hostage to you, and I will keep my word."

"These alone are far from enough for your merits. Today I will make you the founding county magistrate. It is hereditary. The five hundred miles south of Qingfengju will be turned into your fief. If you want to cultivate the land and open mines, all the land will be mined.

How about you make the decision?"

"Hiss." All the civil and military officials gasped. Li Shimin's reward was simply too big. The knighthood was astonishing enough, but that wasn't the end of it. Li Shimin actually gave Qin Yu a five-hundred-mile-large reward.

Wherever you go, you can do whatever you want.

What is this called? Private territory. Not to mention the founding heroes, even those princes who were crowned kings have never obtained such a large place, let alone such great power. However, Qin Yu got it all at once. How could everyone not be shocked?

.

Qin Yu was stunned when he heard this, but seeing that Li Shimin's expression didn't look like a lie at all, after swallowing hard, he quickly bowed and said, "Thank you, Your Majesty. The common people will do their best to repay Your Majesty's kindness."
Chapter completed!