Cotton, with low yield and low production cost, has a wide range of functions.

When Li Yi passed the first winter in the Tang Dynasty, he started the idea of cotton, but because he couldn't find cotton at that time, because as far as he knew, cotton was introduced to China around the Song Dynasty, and before that, only India and Arabia bred in large numbers, so he has not been able to realize his wish.

Later, after coming to Chang'an, he didn't have time, until he lived in seclusion in Jiangnan, he rethought about this matter, Zhenguan eight years, Li Yi bought a large number of cotton seeds from Hu Shang. In the next three years, Li Yi planted a large amount of cotton in the south through the Shangmeng and Li Junqian, which was still guaranteed by the Jinling Mansion and the Shangmeng, so that some people planted cotton.

After three years of planting, Li Yi has obtained a total of nearly two million catties of cotton, which sounds like a lot, in fact, this is not much at all, the cotton yield is very high, it can reach a yield of 500 catties per mu, which means that two thousand acres of land can be one million catties a year, Li Yi has harvested for three years, and a total of two million catties is already considered a little.

However, with the availability of cotton, there is a problem that has always plagued Li Yi, that is, the problem of cotton seeding.

If artificial cotton is deseeded, it will not only consume a lot of manpower and material resources, but also waste a lot of time, so in the past three years, Li Yi has been asking the Shenji Institute to study cotton deseeding machine and cotton elastic machine.

The cotton machine is easy to play, and it was successfully developed in the second year, but the cotton deseeding machine has not made much progress, until an accident, Li Yi suddenly remembered that in his previous life, he had heard of a ginning machine, which was developed by a female weaver named Huang Daopo in the Yuan Dynasty, Li Yi also deliberately saw the relevant reports, but never remembered it.

With Li Yi's idea, Lin Jiang and others suddenly had a clue, and the progress was very rapid, and finally on the day half a month after Li Yi returned to Chang'an, the development was successful.

"Quick, try it, see how it works?"

Li Yi commanded excitedly.

The others were also excited, after all, this thing had been bothering them for three years, and now that it had finally been developed, the joy was indescribable.

Lin Jiang did it himself, Tie Yan and an old worker hurriedly helped, this ancient ginning machine needed three people to work together, and the three of them went into battle together, and after a while, a ball of brand-new seedless cotton was rolled out.

"Haha, it's done!"

Li Yi shouted happily, he couldn't help but be happy, once the problem of cotton deseeding was solved, with Datang's manpower and material resources, it would be possible to produce 300,000 sets of cotton clothes in half a year.

"Husband, what are you so happy about?"

Suddenly, a soft voice came.

Li Yi looked back and was stunned.

"Proton? What are you doing here? ”

Changle smiled slightly. "You haven't been home for four or five days, I'll go to the charity foundation and come to see you by the way!"

"By the way? This is not the same way as a charitable foundation at all, and by the way, just say it if you miss me! ”

Changle's face turned red, there are so many people here, she is not as thick-skinned as Li Yi.

Seeing this, the others hurriedly bowed to Changle, which alleviated Changle's embarrassment.

Li Yi didn't care, he was an old husband and wife, and he was very thick-skinned.

"That's right, Changle, just when you're here, I'm going to make a dress for my father-in-law, you happen to know the size, tell me about it!"

"You're going to make clothes for your father? His clothes are all prepared by the Shangyi Bureau, and he can't wear them if you do it? ”

"Well, don't worry about this first, my situation is special, you tell me the size first, I can find someone to make clothes."

"What else are you looking for someone to do? I'll do it! ”

"yes, you see, I forgot about it!" slapped the door of the head, and immediately commanded. "Lao Lin, find a room for Zhen'er, prepare the tools for making clothes, you hurry up the production of cotton here, and strive to make a set of clothes before noon."

"Yes!"

The others responded and hurriedly got busy.

Li Yi took Changle to a room, prepared the cloth, and Changle began to do it, Li Yi planned to do it in one step this time, cotton clothes, cotton pants, cotton hats, cotton gloves and cotton shoes.

Li Yi had seen others make cotton clothes when he was a child in his previous life, so he knew all the basic steps, Changle needlework, the two men and women matched, and they made a set in just one morning.

Li Yi looked at the finished product and tried it himself, feeling very good.

"Husband, what is this? How is it so weird? ”

"Hehe, this white one is called cotton, and this dress is also called cotton clothes, don't look at him bloated, but he can keep out the cold, wear it, and you won't feel cold in the cold winter!"

"Really?"

"It's summer, it's too hot to wear, wait for this winter, I'll make you a few sets of clothes, you can try it."

Well, Changle nodded obediently, although she knew that this matter was definitely not so simple, but she sensibly did not ask, because she knew that if she could, Li Yi would definitely take the initiative to tell him.

"Lao Lin!"

Li Yi shouted outside the door.

"Young Master, you called me?"

"Well, do you calculate, how much cotton is shared in this suit?"

"About ten pounds." Lin Jiang had already weighed it, so he knew it.

"Ten pounds?" Li Yi's heart sank, ten catties of cotton is indeed a lot, even if you save some, it can only be compressed to eight catties, no matter how little, it will not work, and no matter how little, it will not achieve the effect.

But if calculated in this way, if one person is eight catties, 300,000 people need 2.4 million catties, which is a gap of 400,000 catties of cotton!

Li Yi thought about it, but he didn't have a thought, and in the end, he could only put it behind him and talk about it later.

"Qian'er, you go home first, I'm going to the palace, you don't have to wait for me to eat at noon, I'll go back in the evening."

Changle was a little disappointed in his heart, but he didn't have much to do, and after telling Li Yi a few words, he took the lead and went home.

Here, Li Yi got ready, took the cotton clothes he had just made, and went straight to the palace.

Royal Palace, Imperial Garden.

Li Er was discussing the war with a group of ministers of the Military Aircraft Department, and the conquest of Goguryeo was a major event, and no amount of preparation could be excessive, so the Military Aircraft Department had been established a year ahead of schedule and began to prepare the battle plan.

"Your Majesty, Grandpa Li of Weinan County asks to see you!"

"Who?"

"Huh? Li Yi? How did he get here? ”

Li Er suddenly looked at Li Jing.

Li Jing hurriedly spoke. "Your Majesty, the old minister doesn't know, Yi'er hasn't been home for five days."

"What? Didn't go home for five days? Where did he go? ”

Li Er has been so busy these days that he hasn't cared about Li Yi, but he didn't expect Li Yi to be missing all the time.

"Back to Your Majesty, Yi'er has been in the Shenji Academy for this time!"

"Divine Machine Academy?" Li Er's eyes flashed, and he was a little clear. "Hurry up!"

After that, after a while, everyone saw Li Yi walking in with a large package.

"Li Yi, what are you doing here?"

"Back to Your Majesty, the city has come because of the conquest of Goguryeo."

"What?"

The hearts of all the ministers were shocked.

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