"Big brother!"

Li Chengqian called Li Zhan twice. At this time, Li Zhan was gritting his teeth at Zheng Qian. Li Chengqian shouted twice. Only then did Li Zhan come back and say, "What?"

At this time, Li Chengqian's head drooped and said, "Brother, I feel a little ashamed of my father. He believes in me so much, but I can't help him with anything?"

Looking at Li Chengqian's sudden listless look, Li Zhan smiled and said, "If you have something to do, don't pretend to be troubled by me here. You know, I don't like it."

"Hehe!" Li Chengqian smiled.

When he saw Li Chengqian's smile at Li Zhan at this time, Xiao Douzi on one side was slightly frightened. Perhaps he could only see Li Chengqian's innocent smile at Li Zhan in his life. Even in Empress Changsun, Li Chengqian had never smiled like this.

Because even in the eyes of Empress Changsun, Li Chengqian is more than his own son.

Seeing Li Chengqian laughing, Li Zhan also laughed and said, "If you have something to say, what problems are your father facing?"

"Yes!" Li Chengqian said: "It's the problem of plowing the fields. The time for sowing is about to pass, but because our army is still fighting in Tuyuhun, the strong labor force is not in Guanzhong.

In that case, the plowing speed will slow down. In the past two days, Sitianjian said that it would rain heavily and it would last for a period of time. In that case, the fields would be even less able to plow. The father originally wanted to ask the family to rent oxen to speed up the plowing speed.

But those aristocratic families actually said that they would not rent but sell it, and that a plowing ox would cost 100 cents. They said that their ox would be well eaten and fed well, and that they would have to have the sound of silk and bamboo when sleeping. My father was really furious."

"Hmph!" With a cold snorting, Li Zhan said hatefully: "These families are really too rampant."

"That's it." Li Chengqian agreed, "Later, my father allocated another 500,000 guan to buy cows, but everyone knows that far-flung water cannot quench near thirst. When the cows are bought and transported back, I think the heavy rain will come, so brother, I want to ask you, what methods can help my father."

"Haha!" Li Zhan looked at Li Chengqian and smiled, "You really found the right person this time."

"Brother, can you do it?" Li Chengqian was surprised.

Li Zhan smiled and nodded: "Actually, I have prepared something long ago, but I forgot to tell you. When you talk about it today, I remember it, but I will give you this thing, you want to do me a favor."

"Haha!" Li Chengqian smiled and said, "Even if my brother doesn't give me anything, I will help my brother. I can't wait to kill Zheng Jin. If his Zheng family dares to frame his elder brother, I will kill his Zheng family."

"Puff!" Li Zhan waved his hands repeatedly and smiled: "How come you think this way, I know that killing is very simple, but the follow-up is a troublesome thing. If you stand aside for the Zheng family, I will deal with it."

"But brothers and those bastards are so arrogant. I have the Chihu Sword in my hand, so I can kill that Zheng Jin directly!" Li Chengqian looked at Li Zhan seriously.

Li Zhan continued to smile and said, "I know, but Zheng Jin, I will do it myself, by the way!" Li Zhan looked at the little Douzi next to him and said, "Little Douzi!"

"I'm here!" Xiao Douzi immediately bowed and replied.

"You go to the window and bring the second wooden box!"

"Abide by the order!"

Xiaodouzi walked to the window and carefully brought the wooden box to Li Zhan and Li Chengqian. At this time, Li Chengqian immediately asked, "Brother, are the good things you want to give me?"

"That's right!" Li Zhan opened the wooden box and smiled: "It's called Quyuan Plough!"

"Quanyuan Plough?" Li Chengqian looked at the paper that Li Zhan opened in surprise and asked, "What's the use of this Quanyuan Plough?"

Li Zhan looked at Li Chengqian and frowned and said, "I asked you to go to the farmland. You don't need to guess. You probably haven't gone there anymore, otherwise you can see the difference between a curved plow and a long straight plow at a glance."

"Haha!" Li Chengqian said a little embarrassedly: "During this period, the masters of the East Palace have really annoyed me, so!"

Li Zhan knew the following without guessing it. He wanted to explain it himself.

Helplessly, Li Zhan had to say, "Listen, the plow we use now is called the long straight plow. It is not flexible enough when plowing the land, it is laborious to lift soil, is not very efficient, and it is difficult to move forward without plowing ox.

However, the curved shaft plow I designed has several major improvements compared to the previous ploughs. First, change the straight shaft and long shaft to curved shaft and short shaft, and install a free-turn plow plate on the shaft head. This not only makes the plow frame smaller and lighter, but also makes it easier to turn and turn, and is flexible in operation, saving manpower and livestock.

With it, for example, you can cultivate ten acres a day, and now you can cultivate fifty acres, and you can reduce manpower and animal power. As long as the court makes it all, I think you can plow all the fields before the storm comes."

"Wow, it's so great, brother, I know you can do anything." Li Chengqian was surprised and picked up the drawing of the curved plow and looked at it hard. However, after looking at it for a long time, he couldn't figure out how the drawing was viewed.

Li Zhan smiled and said, "After presenting the drawings, you will do something for me!"

"Of course there is no problem. Brother, what do you want me to do?" Li Chengqian asked without hesitation.

"Help me find these things!" After saying that, Li Zhan handed Li Chengqian a piece of paper. After Li Chengqian took it, he saw it saying: limestone, clay, iron ore and coal! (Note: Limestone 4,000 years ago, there were already limes burned with limestone in the Qijia Cultural Site in the upper reaches of the Yellow River. However, the first "The Little Lime" that records limes, in which the limes were burned with oyster shells.

Most of the ancient lime production processes were used to lay limestone and wood in layers, and calcinate it for a week. Lime was the earliest gelling material used by humans.)

Li Chengqian said with some confusion: "Brother, what do you want these things?"

"I want to make a material that can be used in construction, water conservancy, roads and military projects. Anyway, you don't have to worry about it, just do it for me." Li Zhan smiled slightly.

"Abide by the order!" Li Chengqian laughed: "No matter what brother asked me to do, I will do it."

Seeing Li Chengqian's decisive words, Li Zhan felt that this younger brother was really not in vain, and then he smiled and said, "Okay, you should give the Quyuan Plough quickly, or just like before. Don't talk about me, just say it was your offer, alas!"

Speaking of this, Li Zhan sighed.

"What's wrong with me?" Li Chengqian was surprised.

Li Zhan shook his head slightly and said, "It's nothing. I just feel like I'm a little confused. But forget it, let's follow the previous statement."

"Oh!" Li Chengqian nodded repeatedly. He didn't know what his elder brother's sigh meant just now.
Chapter completed!