When Li Xiuning looked at the complete drawing and finally understood the difference between the new plow, she exclaimed again, "Oh my God! The plowshare is actually designed by you as an inclined surface. It is not the original direct-faced plowshare. The plowshare is changed to an inclined surface so that the area under pressure is smaller. In the future, a cow can pull the new plow, and maybe a horse can pull the new plow. Compared with the old plow, your new plow is a drastic change! People will save a lot of effort in plowing the land with new plows in the future!"

Li Xiuning picked up the drawings and finished speaking in detail. When she looked at Li Yu again, her eyes showed a sense of pride.

"Haha! Since the change is made, the design must have been more than doubled in efficiency, otherwise it would have been a waste of a genius like me, right?" Li Yu's face did not blush and his heart was not beating, and he laughed dryly.

Princess Li Xiuning smiled a few times, smiled and said, "Li Yu, you said this well. Although I don't know how much efficiency you can increase, it's no problem to increase by half, but this will save half of the livestock! You don't know how scarce the livestock in the folks are now, and many families still use people to cultivate the land."

"What? Plow the land with manpower? Can they pull the plow?" Li Yu couldn't imagine the fields that were plowed step by step with manpower, and he didn't know how much hardship and sweat it took to plow acre of land. This is how hard it is!

After Li Yu finished asking, he stood there and began to secretly scold this damn backward era of technology.

Li Er knew very well that the new plow would bring great changes in the future, so he stood there and said in deep pain and joy: "In the slightly remote places, many lands are deserted because of the scarcity of strong men. If this plow can double its efficiency, the people can double their land, so that the people will no longer have to worry about food and clothing."

After hearing Li Er's reminder, Li Xiuning nodded and exclaimed: "So, Li Yu, do you know how great this new plow is? It is not an exaggeration to use earth-shaking changes. At the same time, it also solves the people's future food and clothing problems."

Seeing Li Xiuning and Li Er doubling the arable land, and being excited, he suddenly saw the equal-field system and rent-in-one system appearing in his mind.

Because in the early Tang Dynasty, there was a sparse population but too much land, the court adopted the equal-land system left by the Northern Wei Dynasty in history and the subsequent treasury system of the Tang Dynasty.

The equal-field system, as the name suggests, means equalization of land, which is a method to prevent land annexation.

The law issued by the Tang Dynasty was that the gutter was distributed to 80 mu of land and 20 mu of land forever. The gutter was the land of the court and returned to the land after death. The gutter was collected from the people based on the records of land granting. Regardless of the rich and poor, a fixed amount of rent was paid.

Only when the equal-field system and rent-in-one system were implemented in the early Tang Dynasty, the Tang Dynasty quickly prospered and ushered in the Zhenguan rule.

Next, the house was full of chaos. Li Xiuning informed the carpenter, craftsman, and blacksmith to concentrate their efforts to build a new plow and experiment.

Li Yu asked Xiao Ling to send him the detailed size of Song Li, and Li Yu also let the craftsmen process the sizes of Song Li's parts into standard parts and assemble them.

Two hours later, a Song plow was successfully made. Li Xiuning directly arranged for the field outside the courtyard to try out the new plow. In order to make a good fortune, she specially tied red silk to the new plow.

Two strong yellow oxen were selected from the other courtyard to serve as new experimental plows.

When the new plow and the cow were arranged, Li Xiuning asked Li Er to support the plow. Li Xiuning planned to go and take the cow to participate in the experiment of the new plow himself.

Seeing that Li Xiuning was about to hold the cow himself, Zou Zou browed and reminded him, "Be careful! In fact, there is no need to hold the cow."

When Li Xiuning heard this, he immediately rolled his eyes to Li Yu and said, "You are a scholar. You have never plowed the land and don't lead the cow. When the cow is plowing the land, the fields are winding. When the cow sees the grass in the field, they run to eat the grass in the field. How can you plow the field?"

"Ah... you can't think of such a simple question?" Li Yu was surprised that he had not invented a cow condom in this era. (It is to use a small frame woven bamboo to put it on the cow's mouth to prevent the cow from eating grass while plowing the field and running around and not plowing the land well.)

Li Xiuning looked at Li Yu and found that he was not a joke. His apricot eyes kept flashing and said, "What method can we use? Can we not have to let people hold a cow?"

"Make a cow condom, just put the cow's mouth on it, it won't be able to eat anything. After many times, it will be honest and will not go to eat grass again." Li Yu said and gestured at the shape and purpose of this thing.

Li Er, who was standing next to Xinli, slapped his head regretfully. Why didn’t he think of such a simple method?

"Can it work?" Li Xiuning asked in some doubts.

"Can you remove it?" Li Yu said. He had seen this thing in his later generations, so of course he knew the purpose of the cow cage.

"Princess! This method of the boss should be easy to use." Uncle Zhang, who participated in the new plow experiment, heard Li Yu's words and thought about the truth. He showed joy on his face and hurried over and said in agreement.

"Sister Three should be fine." Li Er nodded and praised. After saying that, he looked at Li Yu again, thinking in his heart that Li Yu was so talented. He had been entangled with problems for so many years. He immediately thought of a solution and solved the problem that had plagued mankind for thousands of years.

"If it really works, when the people plow the land in the future, they will not have to waste a manpower to start the cow." Li Xiuning was silent, and began to mutter to himself.

Li Er couldn't wait to experiment with the new plow and urged him and said, "Sister, let's not talk about this for now. Let's experiment with the new plow first. It's not troublesome to have someone weave one?"

Li Xiuning thought it was reasonable and hurriedly said to Uncle Zhang, "Uncle Zhang, please find someone to weave it!"

"The princess is very easy, so I'll find someone to let him knit it." Uncle Zhang said, and went down and shouted directly: "Zhang Ergou, go and weave a cow cage."

"Okay Uncle Zhang, this is very simple. It will be prepared in half an hour."

Li Xiuning took the cow and started a new plowing experiment.

Li Er excitedly held Xinli and shouted loudly.

"Da!" (Niu Yuzhe means to leave.)

The cow pulled the plow and walked forward quickly. The black soil was rolled up by the plowshare and rolled towards one side.

"Daida! Lean!" (Niu Yu means walking left and right.)

Uncle Zhang saw the plowed land and asked: "The soil of the fields plowed by the Dong family before rolled to the second test. Why did the soil of the fields plowed by the new plow roll to one side?"

"You will understand that the plowshare is an inclined surface, and the soil in the field must roll to one side. Another greater advantage is that the inclined surface plowshare is less stressed, and the cattle saves effort. In addition, the fields plowed in the past are very flat, which also reduces the work for the smoothing of the ground in the future," Li Yu explained in detail the benefits of the inclined surface plowshare.

Uncle Zhang looked at the plowed land and thought about the reason. He immediately said excitedly: "The plow you designed today will save us tenants a lot of effort in the future."

Li Yu just smiled and didn't respond. This was the case with the tools of the farmland in later generations. He just used the tools of the later generations hundreds of years in advance, and there was nothing to be happy about.

The land was not long and soon reached the ground. Li Er turned the plowshare over and helped the plow back.

"Oh!" (Stop meaning)

Seeing that the cow stopped, Li Er handed the new plow to Uncle Zhang, and asked him to plow for a while to feel the difference between the benefits of the new plow and the old plow.

"Sanjie's plow is much more useful than the original straight long plow. Not only is the plowed land much deeper, but it is also much faster." Li Er's excited expression could not be concealed when he looked at the plowed land.

Li Xiuning nodded and said, "Well! I also felt the cattle walking speed much faster than the old plowing land in the past."

After saying that, Li Xiuning looked at the inventor of Xinli happily, and his eyes seemed to be getting stronger.

One hour later!

After constantly taking turns using the new plow, the new plow exceeds the old plow by more than 80%. This is still the case when you are not familiar with the new plow. Another greater advantage is that the land in the new plow was more than one-quarter deeper than the old plow in the past, and all the tenants involved in the experiment of the new plow were very satisfied with the new plow.

When Li Xiuning and Li Er saw the joyful expressions of the tenants and their own feelings of using them, they already knew that this new plow experiment was successful.

Seeing that the new plow experiment was successful, Li Er immediately said, "I will go back and invite my father to come and popularize the new plow in Guanzhong first!"

"Okay! Go back and report to your father later! Let your father be happy too." Li Xiuning saw Uncle Zhang holding Xinpie with excitement and nodded in agreement.

Li Er looked at Li Yu, the inventor of the new plow, and walked over and said, "Li Yu, you have made great contributions again this time. I will go back and ask my father to ask for your contributions."

Li Yu shook his head and said lightly: "No, I invented this plow to facilitate the people, and it is not for any credit?"

Li Er was unhappy when he heard Li Yu's disdainful tone: "Why? If you have merits, you will be rewarded, otherwise how can you convince people? Otherwise, will the system of the court be messed up?"

Note: "In fact, it is very difficult to master what I have not learned to plow the land with oxen. When I was a child, I used oxen to plow the land. It was difficult to master it. The plowed the land with circumcision."

(Today's chapter is the last chapter. I wish you a happy mood. Remember to vote if you have a vote, thank you.)
Chapter completed!