"Of course it's true, but we don't have this fruit in Datang, so don't think about it." Zhang Nan said with a smile.

As soon as he heard that Datang didn't have it, Sun Simiao didn't ask any more, after all, Zhang Nan was always able to come up with something that people hadn't seen, and since this fruit didn't belong to Datang, Sun Simiao had no way to study it.

"Eh, I didn't expect to be able to eat such fresh dishes and fruits in such a season, what a blessing." The eldest grandson Wuji took a bite of the yellow peach on the cake and said with a satisfied face.

It's no wonder that the eldest grandson Wuji would sigh like this, after all, the planting capacity in ancient times was not very good, and there was not even enough food to eat, let alone fresh vegetables. In this season before the beginning of spring, being able to eat a bite of vegetables is not even half of the nobles.

As for these fruits that Zhang Nan took out, not to mention the ministers, even Comrade Li Er did not have this treatment.

Hearing the eldest grandson Wuji say this, Kong Yingda also nodded and said: "That's right, the old man has lived for so many years, and it is the first time that he has eaten such fresh fruits in this season before spring, Qingquan, where did you get so many fruits." ”

Although Kong Yingda often impeached Zhang Nan, Kong Yingda was not used to some of Zhang Nan's behaviors, but Kong Yingda recognized Zhang Nan's talent, and although Zhang Nan did things he didn't like, Zhang Nan also did a few practical things for the people of Datang, just by virtue of this, Kong Yingda had nothing to dislike Zhang Nan.

"Haha, Master Kong, this is a secret, if Qingquan told you, wouldn't you be able to eat such a fresh thing every winter?" Du Ruhui also said with a smile.

Hearing Du Ruhui say this, Kong Yingda also laughed.

"Eh, Qingquan is really a talented person, he can get a lot of ice in the summer and fresh vegetables in the winter, just by virtue of this, I will take it." Cheng Yanjin said with a smile.

"Hey, in fact, this thing is really nothing rare, isn't it just eating fresh vegetables in winter? Wouldn't it be nice to buckle a greenhouse? Zhang Nan said nonchalantly.

"Greenhouse? What is a greenhouse? Li Er's face was strange.

In the face of Li Er's question, Zhang Nan didn't take it to heart, because Zhang Nan suddenly thought of a good thing.

Although Datang can't make a plastic film greenhouse, it can still be built to build a glass greenhouse, after all, the glass greenhouse only needs glass with high transparency, and plastic Datang can't make it, but glass is okay.

Not to mention anything else, the shaft furnace ironmaking method that has been promoted by Li Er in the whole Tang Dynasty, the temperature in the furnace is already able to melt silica, since it can be melted, it is really not difficult to make glass.

Although the heat retention of glass is not good, Zhang Nan thinks that this thing can be made up by manpower, after all, the most important thing in the Tang Dynasty is labor, and those captives captured from Goguryeo are now entering the agricultural slack period, after all, their number is too large, and the border of the Tang Dynasty is relatively stable, and there is no need for so many people to shoot the city wall.

"Lang Jun, the emperor asked you." Seeing that Zhang Nan didn't react for a long time, Cui Yue also quietly reminded below, but he didn't expect Zhang Nan to still have a thoughtful expression, and he ignored Li Er at all.

Cui Yue saw Zhang Nan's appearance and planned to pat Zhang Nan directly, but was stopped by Li Er with a gesture.

So everyone looked at Zhang Nan silently, and after a long time, Zhang Nan patted his thigh and said, "I thought about it!" ”

Zhang Nan's sudden voice startled everyone.

"Qingquan, what do you think of? Let's talk about it. Li Er also didn't blame Zhang Nan for this startling performance, after all, Zhang Nan rarely showed a thoughtful look in front of him, and he could come up with so many good ideas with indecent giggles on weekdays, let alone such a serious appearance now.

"When I returned to the emperor, the minister thought of a good thing that could also make the people of my Tang Dynasty eat fresh vegetables in winter." Zhang Nan said with a smile.

“！！！”

As soon as Zhang Nan's words came out, the hall was shocked, after all, the problem of having a full stomach has just been solved, and this time it has jumped to the stage of being able to eat vegetables in winter, which is the same as running to a well-off place just after liberation.

"Qingquan, you can't talk nonsense, where will any crops grow in winter? The snow is so heavy that even if you plant it, the seeds will freeze to death before they can even sprout. Li Er frowned and said, obviously Li Er didn't believe that Zhang Nan could make crops grow in winter, Li Er believed that Zhang Nan could take out some cold-resistant things to plant, but Zhang Nan said to grow vegetables, Li Er didn't believe it.

"Don't you dare to talk nonsense, Your Majesty, do you remember the weather in Qiongzhou? What does the emperor think is the weather in Qiongzhou? Zhang Nan asked.

"The weather in Qiongzhou is naturally good, even in winter, I feel that it is no different from spring, it is very warm." Li Er, as a man who has been to Sanya, naturally likes this kind of weather very much, although there are typhoons and heavy rains, but the high temperature cannot be ignored.

"Then does the emperor think that warmth is enough for crops to grow?" Zhang Nan continued to ask with a smile.

"Naturally...... Oh, I see what you mean, you want me to farm over there? This is not good, there are too few people over there, the land is still wasteland, even if I send people to open up the land over there, there is no way to do it, after all, the people are not willing to leave the place where they have lived for generations. Li Er smiled and shook his head.

It is a huge project to relocate the people, especially the population of several state capitals that are now in it, Li Er feels that it is not enough, let alone move people to a place where chickens don't lay eggs and birds don't.

Although now because of Huanghuali and seafood, it has attracted a large number of businessmen, but after all, it is a floating population, and it is impossible to count.

"No, no, no, it's good that you can think of this, but the minister's method is much smarter than this." Zhang Nan said with a smile.

"Oh? So what is your method? Li Er asked.

"It's simple, since we need the weather in Qiongzhou, and Qiongzhou needs our land, wouldn't it be good for us to find out the climate in Qiongzhou?" Zhang Nan said.

"Qingquan, aren't you talking nonsense? Qiongzhou is so far away from Guanzhong, how is it possible? Not to mention the weather. Li Er frowned.

"Your Majesty, what we want is that warm climate, so when we farm, isn't it a big deal to make such a warm climate for these people as artificial? Even people can make fires to keep warm, so why can't food and vegetables? After Zhang Nan finished speaking, a look of "There is also this kind of operation" appeared on everyone's faces. ”

"As the saying goes, fighting with the sky is endlessly fun, Your Majesty!" Zhang Nan arched his hand.