Two hours later, Li Feier finished her practice and walked out of the room and saw Li Yu talking to Xiaoling.

"Xiao Ling, have you come out of the space?" Li Fei'er was stunned for a moment, and a happy smile appeared on her face.

"Fei'er!" Xiao Ling looked back and saw that it was Li Fei'er, and also shouted in response. After shouting, she flew over happily and landed on Li Fei'er's shoulders. She used her small head intimately to rub her head up and down.

Li Feier likes Xiao Ling's appearance very much. While responding to Xiao Ling's head with her head, she gently touches Xiao Ling's snow-white wings behind her with her hands.

Xiaoling also likes Li Feier, who is simple-minded, so she started playing intimately with Li Feier. After a while, the two of them started chattering.

Seeing that the two of them were having fun, Li Yu smiled and did not disturb them, but walked out of the gate.

...

It has been a long time since I came to my own fields, so Li Yu wanted to come to the fields to take a look.

The climate has entered late autumn, there are no crops in the fields, and the fields are also bare. The weeds in the fields and on the roadside have now turned yellow and are about to enter the hibernation period. We look forward to the growth of green leaves again next spring and start to rebirth.

The tenants in Lizhuang were holding cows in the fields and were plowing in autumn. The tenants in the village showed happy smiles on their faces, and were talking loudly to each other about the harvest this year. Looking at the happy smiles on their faces, it seemed that their harvest this year should be good.

Compared with a year ago, the dishes on the tenants in the village have completely disappeared, and the sad faces on their faces have also disappeared. The clothes on their bodies are no longer tattered, but clean clothes.

When the tenant saw Li Yu walking from a distance, he stopped one after another and greeted Li Yu with gratitude.

Seeing the huge changes in their lives, Li Yu was also happy for their current wealthy life. Finally, he helped them and quickly responded happily to their greetings.

But when they saw the plow in their hands, their good mood suddenly disappeared without a trace.

Li Yu found that the tenants were still holding the Han plow with their hands on the plowing land. Not only was this old-fashioned plow not only till the plowing land, but it was also extremely slow.

Li Yu looked at most of the fields that had not started to plow autumn yet. There were so many fields, and they only rely on these slow-moving Han plows. When would they plow?

He remembers that historical records record that Quyuan plow was invented during the Sui and Tang Dynasties, so why did tenants still use Han plows?

Li Yu, Zou Zou looked at the farmers and said, "Why don't you use the curved plow?"

"Curve plow?"

Li Yu probably had never heard of the confused eyes of the tenants, let alone used them.

Li Yu went to find Uncle Zhang without stopping, and saw that he had heard of the Quyuan Plough.

I soon found Uncle Zhang who was directing the tenants to grow up in autumn.

"Boss, do you have time to come to the fields today?" Uncle Zhang saw Li Yu coming and quickly greeted him.

Li Yu did not respond because he was concerned about the plow, but asked directly: "Why don't Uncle Zhang use a curved plow to plow the land? Why do you still use a straight plow? Can the plowing land be fast? Besides, can you use a Han plow to plow the land to plow the land to make deep plowing and meticulous cultivation?"

Uncle Zhang continued, saying, "You are talking about a plow with one hand and a crooked shaft shape! I have heard of it but have never seen it. It is said that such plowing land is half faster than straight shaft plowing land, and it is more labor-saving."

After hearing Uncle Zhang's explanation, Li Yu really wanted to scold this damn era for being so slow that information was transmitted. An invention has appeared for many years but has not been popularized. This place is not popular in the most prosperous places in Guanzhong. If a new plow is popularized in remote places, it is still unknown how many years it will take for the people to use the new plow.

The arable land in the space is now almost mechanized, and there is not even the earliest curved plow here, let alone the later Song plow and modern composite plow.

Li Yu did not stop in the field, but hurriedly left the field and headed to Li Xiuning's villa.

He understood that if the new plow was quickly popularized, the imperial court must take the lead, otherwise the people of the Tang Dynasty would not know how many years it would take to use the new plow. Li Xiuning was the most suitable candidate, so Li Yu came to Li Xiuning directly.

In addition, he found that the plowing ox used by the merchants now had not pierced nostrils, so he planned to solve it together.

I went straight to Li Xiuning's villa, but I didn't expect that Li Er was also here and was discussing the attack on Wang Shichong with Li Xiuning.

When Li Xiuning saw Li Yu coming, she was stunned, then smiled and said, "Why are you here?"

Li Yu looked depressed and immediately said in a mess: "Not yet, your court should not do what you should do, let me, the common people worry about you."

After hearing Li Yu's words, Li Xiuning looked puzzled and said, "What should the court do not do, and you, the common people, have you worried for us?"

After hearing this, Li Er, who was standing aside, looked at Li Yu in confusion.

"Of course it's a plow. You are shouting that it's farming-oriented. Why haven't I seen your actual actions?" Li Yu complained again.

"this!"

"this!"

Li Er and Li Xiuning didn't know how to respond, so they had to stammer.

"I think those farmers are still using straight-rod plows in the Han Dynasty. Some are double-rods and some are single-rods. Basically, they are still two-ox-carrying and carrying. Can this plow speed be fast? Can it be achieved with the purpose of deep cultivation and meticulous work? Not only is this operation even more troublesome. I heard that there are already curved plows in the south, which will greatly improve labor productivity and the quality of cultivated land. But I asked the tenants that many of them didn't know, let alone see them." Li Yu finished speaking of the purpose of the visit in one breath.

Li Er nodded and said, "I have heard of the curved plow you mentioned, but it is said that the requirements for plowshare steel are too high. The plowshares we produce now are too brittle and are prone to break during the plowing land."

Li Yu waved his hand and said, "This is easy. Use coal to make coke, so that when smelting iron, the brittleness problem of iron will be reduced."

"What?" Li Er stared at Li Yu with wide eyes, and after a while, he calmed down and asked: "Can you really solve the problem of using charcoal to make iron crisp?"

Li Yu waved his hand and said, "It is mainly because a kind of element "sulphur" contained in coal enters the molten steel, which will make the steel or iron brittle. Just desulfurize the sulfur in coal and solve this problem."

Li Er asked again: "Why..."

"Let's talk about the steel thing, let's get a pencil, paper, and ruler. I'll design a new plow, which is better than a curved plow." Li Yu directly interrupted Li Er and asked about the steel thing, but directed Li Xiuning to get the tools. The livelihoods of the tenants are more useful than the new plows, after all, the seasons are not waiting for anyone.

Li Er, who was standing by, seemed to never take this guy to heart, but just shook his head helplessly, pretending not to hear it.

"Ah~~~ It's better than the curved plow? You haven't fooled us, right?" Li Xiuning exclaimed incredibly, with her cherry mouth open.

Li Er, who was standing by, just looked at Li Yu with an incredible look. The curved plow has not yet been popular yet. How dare he say that it is better than the curved plow?

Li Yu ignored the strange eyes of the two, but instead sat there, the big golden sword, waiting to bring the pencil and paper, and draw Song Li's sketch. After they finished reading the sketch, they should understand it, which is more intuitive than explaining with their mouths.

When Li Er saw this guy's appearance, he was as arrogant as 20,000 or 50,000 yuan. He was even more awesome than the King of Qin, and he just laughed.

Li Xiuning was surprised for a while, and saw that Li Yu ignored her, but sat there as a master. He knew his virtue, but he just didn't want to explain! She quickly ordered the maid outside: "Dongxiang quickly bring the pencil, paper and ruler in my boudoir!"

"Here!"

After a while, Li Yu began to draw a sketch of Song Li. A quarter of an hour later, Li Yu gave the sketch of Song Li to the two of them to see.

In fact, there is a ready-made Song Li in the space. Why is Li Yu unwilling to take it out for the tenants to use? First, it is difficult to explain, and second, he plans to let the indigenous people of the Tang Dynasty learn to make new plows by themselves. In the future, this technology will be left forever, and it will prevent the risk of loss.

"Hey! The plow shaft is shortened, bent, reduced quotient, pressure bond and other components, and the plow body structure is lighter and flexible to use, so that the farming efficiency will be higher." Li Er praised in surprise after reading the sketch and molding drawings.

After saying that, Li Er immediately thought of the huge changes that the new plow brought to the Tang Dynasty, and his heart became hot in an instant.

Since the collapse of the Jin Dynasty, in the next two or three hundred years, there were heroes in the next two or three hundred years. After years of war, there were not many days of cessation, and the population figures were definitely not up. In the farming era, everything depends on labor force. The population has dropped sharply and the labor force is scarce. Now many land in the areas controlled by the Tang Dynasty is in a barren state, and we can only watch the flat fertile land grows with weeds.

If the efficiency of the plow can be doubled, the area of ​​arable land can be doubled, so that the problem of food and clothing for the people can be solved quickly, and it will play a great role in the stability of the world.

Li Xiuning, who also knew how to farm, praised the exquisite design of the plow after reading the sketch. After reading it, she was surprised: "Li Yu, you actually designed the plowshare to be alive. This way, you can turn the plowshares back to the ground. And you can plow the fields deeper, and the mud after plowing the fields is rolling to the side, which saves more effort when leveling the land?"
Chapter completed!