The potential of luminous grapes is definitely quite great, but it takes a long time to observe and study, and Liu Dalu must come in person, which no one can replace.

Now the center of gravity of the people of Tiejiabao has shifted to the upcoming spring plowing.

There is no need to elaborate on the importance of spring plowing in ancient times. Anyway, as long as you know that in ancient times, even in war, you must make way for spring plowing, you will definitely understand that it is not an exaggeration to be cautious on such an important day.

Everyone is worried about this year's spring plowing. Liu Dalu has heard countless complaints, complaining that the rain was not abundant enough during this period, and his words were full of concerns about the future.

Like Tie Ling, Tie Yong, Quan Gang and others who were close to Liu Dalu had to say something several times when facing him. They probably thought of the Dragon King's ability, so I hope that this Dragon King can call the wind and rain, bring rain, and solve the worries of thirst and water.

But the Dragon King Master Liu Dalu would be so arrogant that he could call the wind and rain. Such a magic technique has not appeared in the system yet.

However, Liu Dalu knew that he had to take action and resolve this matter, otherwise it might cause a heavy blow to the faith of believers.

"To solve the problem of water, it is actually very simple. You can put the target on Qingshui River. Let's go and see Qingshui River and then summarize a plan." Liu Dalu made a suggestion with confidence.

So, Liu Dalu led a group of people to Qingshui River.

At that time, Tiejiabao was a bit prescient. When laying the cement road, it also paved a side of Qingshui River, leading directly to the riverside.

When he arrived by the Qingshui River, Liu Dalu saw the river surface that had shrunk a lot.

Last year, Liu Dalu also came to Qingshui River. He remembered that the width of the Qingshui River was more than 30 meters, which was considered a big river. But now, the river surface is only more than ten meters wide, and the water level is even more shocking. Large areas of the riverbed are exposed.

At the intersection of Qingshui River and the moat, Liu Dalu looked at it and then estimated that to have water in the moat again, at least the water level of Qingshui River must be raised by four to five meters. However, for the people of Tiejiabao, this is obviously an impossible task, at least they can't think of a way.

Walk down the Qingshui River, and a few miles away is the Daqing Mountains, and the Qingshui River also flows through the Daqing Mountains.

"Is there anyone else going down?" Liu Dalu asked.

"It probably doesn't."

"Never seen it before?"

"Well, we've never seen it anyway."

That means that the Qingshui River may have bypassed the Daqing Mountains and flowed into the sea. Since that's the case, there is no need to worry about it. He has already thought of a solution.

"To solve the worry of water use in spring plowing, you only need to build a dam here to raise the water level."

"Dam?" Everyone was confused: "Dragon King, what is this?"

"Ha, you don't even know the dam? Did Li Bing know? Li Bing of the Qin Dynasty." Liu Dalu was filled with a sense of superiority, this group of ignorant ancient people.

"It turns out that the Dragon King was talking about the prefect Li Bing of the Former Qin Dynasty. The dam refers to the burial made by Prefect Li?" Quan Gang suddenly realized.

"Fry...fry...shelf? What is the frying shed?" The Dragon King's sense of superiority disappeared. These scholars were so annoying that they could only say something he had never heard of before, so they could not let him pretend to be a good person?

Liu Dalu hit the sky and blew up: "Haha, fry...shelf, dam, yes, it's a dam. Anyway, just build a dam to raise the water level. That's all tough. Since you know, then tell me, how should this dam be built?"

"Uh..." Quangang's face suddenly wrinkled into bitter gourd: "Dragon King, although the student has read several books, this is the sacred place..."

“The Dam.”

"Yes, the dam, but the students really don't know how to build the dam."

Tiema asked anxiously: "Dragon King, don't know how this dam should be built?"

Liu Dalu looked at him angrily. This old man had no vision at all. Where did he get his usual cleverness? Forget it, Master Dragon King has a lot and chooses to forgive these ignorant mortals.

"The function of the dam is mainly to block the water and adjust the water level. Let's put it simply. Just like this field stalk, because there is a field stalk, water can be stored in the field. Once there is too much water in the field, the water will flow out of the field stalk. How high do you want to repair the field stalk? Do you understand?"

"I understand, but this is a big river, and the water is flowing all the time. How can I build a dam in the water?"

"Yes, things will be washed away when thrown into the river."

"Take the stone, the stone can't rush away."

"There is also cement, I think cement is OK."

"How many do you have to throw into the water?"

Throwing stones, throwing cement, throwing an egg. Listening to these people's comments, Liu Dalu was as big as a fight. He realized that these people had no relevant experience at all and he had to organize them.

"Stop talking about it, Tiema, you can gather a group of people first, lay the cement road here, and lay it as soon as possible."

"Then find some people who can do carpentry. I need to ask them to make some molds and styles until I come back to tell them."

"First do these things well, and then build a dam. Such a dam is not difficult to build."

"Dragon King, can you repair it before spring plowing?"

“It’s okay to put in more force.”

"Don't worry, the people of Tiejiabao have strength."

Then Liu Dalu climbed into Qingshui River and conducted some investigations on the spot.

"Now the water depth of Qingshui River is only more than five meters, and the silt... There are stones below two meters, which adds up to seven meters. If it is a little safe, it will be eight meters. Then from last year to now, the water level has been lowered by seven or eight meters, which is sixteen meters, which means that the dam must be built at least to sixteen meters high."

"Let me think about how to repair the dam. It should be to nail the fixed column inside first? Then use the fixed column as the anchor point to fill the fixed object. The dam is usually trapezoidal, right? Oh, forget it, I'd better find a way myself."

Liu Dalu had never built a dam before, nor had he paid attention to how it was built. He knew it would be difficult to build a dam, but he felt that the problem was not big. The reason why he was so confident was because he was very powerful now. With such a huge body, he moved things very quickly.

To be on the safe side, Liu Dalu made all his brains and decided to start a phase 3 project of Dam, namely Dam No. 1, Dam No. 2 and Dam No. 3.

Dam No. 1 is mainly used to accumulate experience and is responsible for intercepting part of the water flow. It is repaired at the front, Dam No. 2 is repaired at the back of Dam No. 1, which is a supplement to Dam No. 1, which blocks most of the water flow. Dam No. 3 is repaired at the end, which is the most perfect dam.

Among them, Dam No. 1 is the most difficult to build because it has no experience and has to stop most of the water flow.

Therefore, the key is the construction of Dam No. 1.
Chapter completed!