What is the use of cotton, this Li Hang knows best, because cotton is much better than animal skin, especially in this era when the breeding industry has not yet risen, if it is really popularized cotton planting, then the cotton produced can be made into a large number of cotton clothes and quilts.

Combined with the fire kang, this warmth ability can be increased by at least several levels, and there is enough possibility to increase production, then this thing can improve the survivability of the entire northerners and reduce the mortality rate.

And in the end, with such a thing, after a large number of troops are equipped, it is possible to attack north, especially after having this high level of wine, the problem of keeping warm can be solved a large part.

What do you say eiderdown?

This era of duck down and not to say how difficult to do, just this era of duck breeding is not as large as the later generations, this year want to get enough duck down, this has to be found everywhere, because this year's breeding industry, there is no large-scale start, most of them are in the countryside to raise their own chickens and ducks, and these people are basically rarely take-out, but basically digested internally, you must know that in the countryside, there is a prerequisite for limiting this large-scale breeding, that is...... Grain production!

Li Hang narrowed his eyes and looked at this cotton curiously, if it could really be planted on a large scale, I am afraid it would be a good thing.

"Li Xiucai, what's the use of this flower?" Ying Yun was very curious, he had monitored Li Hang to truly turn decay into magic, and he had also seen Li Hang do other means, but what could this flower do?

"After the velvet is taken out, it can be made into a quilt of some cotton clothes, and the warmth effect is very good, comparable to animal skin!"

In order to make the hides of this year, you first need to hunt the beasts, and after hunting the beasts, you can nitrate the hides so that the hides can be used to make clothes.

And this cotton is planted in the ground, if there is land or even can be planted on a large scale, if it can really be done, then this warmth will not be a problem, plus at this time there is a guarantee of spirits, the combat effectiveness of the border army will be further improved, and even the people who freeze to death and frostbite will be reduced on a large scale.

When he heard that the flowers planted in this plant could be used to make cotton clothes, even Ying Yun immediately discovered the value of this one.

"Good, good! I'll leave this to me! There must be someone in the palace who is in charge of planting this flower, and when the time comes, I will ask him to go to the palace and carve out a piece of land to grow this thing. Cotton, I know! "Ying Yun is a little excited, this kind of thing that others have not noticed, if it can really become developed in his own hands, he can make this time to improve his popularity, which is very beneficial to his future.

Even their own teacher, Qin Zheng, said that they wanted to improve their abilities, but it was precisely because of this that they were so keen on this matter.

"There's nothing wrong with that, just ......" Li Hang looked at Ying Yun curiously at this time.

At this time, robbing Li Hang's credit, Ying Yun was also a little embarrassed. "That's Li Hang, why don't I worship you as a teacher!"

Li Hang rolled his eyes. Apprentice? Do you think you are the little hairy man in the Donglin port, and if you want to learn from a teacher, you can easily learn from a teacher, and you can come with some fruits?

"My apprentices in Donglin Port are basically just ordinary boys, Your Highness has such an identity, how can you learn art so casually, it is estimated that you have to consult Your Majesty for this kind of thing, and I am not involved in court politics, you have to know how much benefit a teacher who does not participate in court politics can not bring you much." As he walked, Li Hang's eyes kept drifting in here, because at this time he had already seen his wife and sister-in-law, who were sitting there chatting with two women who looked a little older.

"That's my mother, and the current queen!" Ying Yun whispered.

For today's queen, Li Hang has still heard of it, it is said that she is the master who followed Emperor Yingwu into battle to kill the enemy, and it is also quite legendary, not to mention, the most commendable thing is a legendary story of this woman.

But looking at it now, she didn't have that burly figure at all, but she looked a little thin, but her face was a little tanned, and she looked like a healthy woman, a little wheat-colored, and her angular face looked heroic.

led 300 cavalry to break the main battle force of the Great Jin Dynasty and saved a lot of people.

Li Hang also knew about this woman's great exploits.

As for this crown princess......

seems to be a very beautiful woman, generous and decent, she looks like she knows that this is a woman trained by the family, not only is she very decent everywhere, but also very sophisticated, and Li Hang also saw that her daughter-in-law was very smart to give away the small gifts she carried.

Looking at the smiling expressions on the faces of the two women, he knew that this kind of lady diplomacy was a success.

"Well, this imperial garden is beautiful!" The queen hugged Zhou Xin with a smile, and a kind smile appeared on her face.

Her little granddaughter and little daughter are about the same size.

When she saw this Zhou Xin, she also liked it quite a lot.

"It's so beautiful!" Zhou Xin looked at the magnificent palace with envy, and then saw Li Hang who came over.

"Brother-in-law!"

Ying Yun walked up at once. After the ceremony, Li Hang was introduced to the two women.

The queen looked at Li Hang with satisfaction. "Thanks to Mr. that day, Mr.'s life-saving grace is unforgettable!"

Did the Three Princes win the odds? Li Hang smiled. "As long as you know how to heal, you will shoot at that time."

After the queen gave him a seat, Li Hang sat down on the side.

"Xiao Xin, how is it, is the dim sum in this palace delicious?" Li Hang smiled, looked at the dim sum on the table, and looked curious, how many dim sum can there be in this year?

"Delicious!" Zhou Xin was very excited.

"Wait for my brother-in-law to taste it, and I'll make it for you!" Li Hang smiled, there won't be a lot of dim sum tricks this year, and he is confident that he can do it.

The queen laughed, if it was someone else, she would have become a quail a long time ago, but this Li Hang made her feel a little interesting, at least not the kind that scared like a dog, and after Ying Qi came back, she praised Li Hang's craftsmanship many times, which also made her very curious. "I heard that Li Xiucai is proficient in cooking, and he also knows all kinds of miscellaneous studies, this 'perfume' is made by you, I wonder if this perfume can be made into two more bottles?"

Perfume is a good thing to make money, after all, this thing is actually alcohol plus flavor, for Li Hang, this is just a few stills, but now the war is going on, so most of the alcohol is directly supplied to the front line.

Li Hang smiled. "It's not easy to make, and it's also subject to the season, so it's all the more precious."

It's not that he's playing tricks, because the essence at this time can only be extracted from plants, and what flavor you want to extract depends on when and what flowers bloom!