Before Gu Yuqiao went out, he ordered a lot of "pockmarks" on his face, which was uglier than before.

Zhang Minghuang complained beside him for a long time, but in the atmosphere in which they spoke, he felt that he couldn't interject.

Finally, the boy remembered him.

"Well, you hurry up and finish talking to him, and I'll do it when I get home."

"Okay." Gu Yuqiao made a gesture with his small hand, "Xiao Zhang, bring the pen, ink, paper, and inkstone!" ”

Xiao Zhang: ......

Okay, Xiao Zhang is Xiao Zhang, so I'm going to get down to business.

However, knowing that the girl was going to write and draw, he led the two to the study.

Without any more nonsense, Gu Yuqiao chose the thinnest brush and began to draw on the spread out white paper.

She drew a diagram of the construction of agricultural implements that was in line with the productivity of this era.

Zhang Minghuang was confused, although he was the son of a landlord, he had never worked in the field, so he didn't know what it was.

Even Ning Shu, who has always been smart, asked inexplicably: "What kind of farm tool is this?" ”

The girl turned her head and threw him an appreciative glance: "Yes, I know it's a farm tool." ”

"It's not hard to guess that you've been preoccupied since you first passed through the fields, and you didn't stretch your eyebrows until you drew these pictures."

Ning Shu looked at her, her ice silver eyes were as gentle as moonlight.

Gu Yuqiao's face was hot, and he was busy lowering his head to draw, but his movements were much slower.

I hate it, don't pay so much attention to me, hey!

"Xiao Ding, he won't really like me, will he?"

The little milk voice who was suddenly asked was stunned: "I, how do I know, I'm still a child......"

The girl didn't expect it to solve her puzzles.

She turned to Zhang Minghuang crampedly, explaining as she painted.

"This is a foot-operated threshing machine, which can be threshed by stepping on it, and the main material is wooden planks......"

Zhang Minghuang was not very interested, "Why are you painting this for me?" ”

Gu Yuqiao glared at him, "If you don't understand, listen first, you have to understand how these things are made for me first." ”

"Oh......"

"It's a mouldboard plough that ploughs the ground, breaks up clods of soil and plows grooves in preparation for sowing; This is a hand-cranked rice transplanter, and the speed of rice transplanting can be increased by eight times; This is a hand-cranked rice and wheat harvester, this is an animal-powered rice and wheat harvester......"

Zhang Minghuang, who was unimpressed at first, gradually widened his eyes.

Even if he has never done farm work, he knows how big and far-reaching the impact of these things will be on agriculture if they are made!

He couldn't help but listen attentively to Gu Yuqiao's explanation of the construction diagram.

Fortunately, the girl drew the picture very easily and easily, and with a little explanation, she could know how to make it.

"At present, these are enough, you should quickly use your family's financial and material resources to make them as soon as possible, and then ......"

Gu Yuqiao didn't continue, but looked at Zhang Minghuang.

"Then, I will try it in my own field, and if it works, I will report the new farming tools to the prefectural magistrate, and ask him to come and see us harvest. When the prefectural magistrate saw the benefits of this farming tool, he would report it to the imperial court. ”

The more Zhang Minghuang spoke, the brighter his eyes became.

"If it is recognized by the imperial court, this is a great achievement, and the emperor will be rewarded!"

"I'm going to find someone to do it right now."

Now he can't wait to see the finished product right away, and he immediately goes to the field to try it.

But he was about to put away the drawings when he was stopped by a voice.

"Wait!"

Zhang Minghuang was stunned, Gu Yuqiao was also a little surprised, it was Ning Shu who spoke, "Is there a problem?" ”

"Yes. Too much iron is used, and the cost is too high. ”

"Ahh So what to do? ”

Zhang Minghuang was suddenly depressed, and his originally hot mood was suddenly like being poured with a bucket of cold water.