After the wedding, Qin Zhao was a family member. He could not go out early and come back late than before, but now Qin Zhao is much earlier than when he went home at night.

The first thing Qin Zhao needs to solve at work now is to open up new fields for more than 9,000 migrating Xinqiding.

In the wastelands around Jinghai Fort, land close to water sources for irrigation has been reclaimed into fields. Although Xiangshan County is located in the Pearl River Delta and has a lot of flat land, it is difficult to irrigate land far from mountain springs and rivers, and even the flat land is abandoned in large quantities.

Of course, there are also human factors for the abandonment of a large amount of land. If a commoner without background opens up difficult fields, he will be extremely troubled by various forces and personnel. Not to mention the high land tax, even if farmers use small iron water trucks to collect water by the river to irrigate, they will be troubled by the clerks.

If you have a water truck, you are so rich. Should you pay more land taxes?

The final result is that farmers can only use shoulder poles to carry water. Such irrigation methods cannot plant a few acres of land, resulting in a large amount of land that could have been irrigated.

How much flat land was abandoned in the Southern Ming Dynasty? Just imagine that the Southern Ming Dynasty had only a population of 100 million, and in the Qing Dynasty, the same land was supported by 400 million people.

Qin Zhao believes that he is not bound by the corrupt bureaucratic system of the Southern Ming Dynasty. The problem of new fields with a population of 9,000 in Jinghai Fort and the land rent problem of some villagers in Qinjia Village are planned to solve it with water trucks and irrigation canals.

Whoever dared to make things difficult for Qin Zhao to build water trucks and canals, Qin Zhao asked him to find his own 100 steel armored cavalry.

Qin Zhao took out a fine brush and painted it carefully on the paper. Soon, a design drawing similar to the Yellow River flood wheel appeared in Qin Zhao's pen.

The waterwheel is a popular style of Lanzhou waterwheel in later generations.

However, Qin Zhao installed the cylindrical bearing he invented on the water wheel, which greatly reduced the friction force when the water wheel rotates. After all, each bucket on the axle of the water wheel is very heavy. If it is pressed on the iron shaft in the center of the water wheel, the friction force under the iron shaft is amazing.

The so-called cylindrical bearing is a cylindrical steel roll that is placed between the two rings of the bearing size. The cylindrical bearing is slightly less efficient than the spherical bearing, but can withstand greater external pressure.

Qin Zhao roughly calculated and found that bearings can increase the efficiency of the water truck by more than twice.

...

Qin Youli stood by the river in Qinjia Village, watching Qin Zhao's big water trucks erected on the river, and opened his mouth wide in surprise.

The water truck was completely installed in the river channel, and it was stabilized by the wooden pillars inserted into the riverbed. The water truck was three stories high, and it was a circular radioactive structure, which radioactively discharged many wooden boards from the center of the water truck. The wooden boards were mostly half a floor high and were submerged in the river channel. As the river water flowed, the wooden boards were pushed by the flowing water, which led the entire water truck to rotate slowly.

There are many small boxes in the middle of the driving board of the water wheel. When the small boxes enter the river water with the board, they are filled with water. Then they raise the water and pour it into the canal next to the water wheel when the wheel wheel is down.

"Defense Master! Defensive Master! This water truck is really something that my subordinates have never heard of and seen. It does not require manpower at all, and can endlessly lift the water into the canals that are two people high and transport it to the distant fields."

"Defense master, this water truck is too sharp! It's really a magical skill."

Not only Qin Youli was surprised, but the villagers who watched the fun in Qinjia Village also widened their eyes. They have always struggled with the difficulty of irrigating the highlands far away from the river bank. But today, looking at the posture of Qin Zhao's machine, the river can rise one floor higher and flow far away in the irrigation canal.

"Magu! Look at the waterwheel without manpower!"

"Oh my god, there are really such water trucks in the world, without human power."

Qin Baole stood in the crowd, looked at the wasteland in the distance, then turned to look at the water truck, his face full of excitement.

"The Guardian is really the reincarnation of Lu Ban. How much manpower will he save now?"

Qin Ning stood next to the water truck in surprise, looking here and there, and finally said, "Brother Zhao, can this water truck be transferred by itself without human power?"

Qin Zhao smiled and said, "Of course it can be rotated. This water truck is also called the Yellow River water truck. There are many built in Lanzhou. However, people in Lanzhou do not know how to make bearings. The rotating shaft of the water truck is a piece of wood and has a lot of friction. I made a cylindrical rotating bearing for this water truck, so that the friction force of the water truck can be reduced to one percent of the original one."

"It turns out that such a big water truck could only move in the Taotao Yellow River. After my improvement, this water truck could also draw water in the small river in our Qinjia Village."

Qin Ning shook his head and said, "Brother Zhao, it's magical, magical, so magical. I have never seen a water truck that does not use human power to turn. Now the water in our Laolao River can be raised to irrigate the wasteland on both sides of the river."

Qin Zhao said: "You are right!"

Qin Ning's eyes lit up and he said, "Brother Zhao, how many new fields can our Qinjia Village irrigate at one time?"

Qin Zhao said: "A water truck can irrigate about 50 acres of land."

The villagers watching the fun in Qinjia Village saw the water flowing to the end of the canal and fell to the ground, and cheers burst out.

“What a lot of water.”

"This rush of water keeps flowing!"

"If I were to plant rice in spring, I could fill acre of land in half an hour?"

Someone whispered again: "The Guardian bought all the wasteland outside the village a few days ago."

Others were chaotic: "This is to turn the wasteland into fertile fields!"

Qin Zhao asked Qin Youli: "Old accountant, I asked you to buy all the wasteland outside Jinghaiwei and Qinjia Village in advance. Have you done this?"

Qin Youli nodded quickly and said, "I'll buy it all. Except for the barren wasteland that has no owner, I bought all the barren wasteland at a price of 100,000 mu of barren land outside Jinghai Castle and the 7,000 mu of barren land near Qinjia Village are all the land of the Guardian."

Qin Zhao looked at the wasteland in the distance and nodded.

He waved his hand and said to several carpenters behind him: "When you go back, according to my design drawings, build five hundred such water trucks first. Use the woodworking lathes in my factory to process the body of the water truck, and make the water truck as fast as possible."

Qin Ning said with a stuttering tongue: "Be good, the guard will irrigate 25,000 acres of wasteland this time?" He pinched his fingers and calculated, and said: "These wastelands become farmland. If each acre of land is collected for land rent, it will be 12,500 stones of grain a year. If it is silver, it will be 37,500 taels of silver."

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Chapter completed!