Lu Xuan stared at Liu Tan, whose cheeks were flushed and eyes were shining with excitement. He felt a little embarrassed when he saw Liu Tan. He touched his nose and said, "I... suddenly thought of a good idea and lost my composure for a moment."

Lu Xuan asked curiously, "It must be a very useful method to make His Highness so happy, right?"

Liu Tan nodded and said, "Yes, but I'm not sure if this method will work yet. Little Kunmi has to keep it a secret for me first."

Lu Xuan blinked and said, "But I don't know what your Highness's method is."

"Grafting." Liu Tan told him the answer very readily.

However, even after hearing this, Lu Xuan still didn't understand. He looked at Liu Tan in confusion and repeated, "Grafting?"

Liu Tan nodded. Seeing Lu Xuan's confused expression, he hesitated for a moment before saying, "We're grafting grape seedlings from the Western Regions onto grape seedlings from the Central Plains. That way, both will thrive."

Lu Xuan's eyes widened after hearing this: "How...how is this possible?"

Liu Tan couldn't explain it to him right away, so he said, "Well, it might not work, let's give it a try first."

As he spoke, he said to Miao Rui, "Go tell Li Xi to find some grape seedlings that are strong enough to grow here, and then leave me... three grape seedlings for my experiments."

Miao Rui bowed in agreement, then turned around and left the palace to tell Li Xi.

Lu Xuan said with emotion, "If this can be accomplished, it will be no less than the reappearance of a miracle."

Liu Tan laughed: "This is not a miracle, this is science."

However, Lu Xuan did not quite understand the meaning of these two words, and Liu Tan did not explain in detail. In this era, it was normal to regard things that one did not understand as miracles. Even Liu Che could not avoid it, so how could one force this little Kunmi to understand?

However, there is still a little difference between this person and Liu Che. The main reason is that the little Kunmi is still young. Instilling enough scientific thinking in him may enable him to better understand the essence of the world. Liu Che... forget it, his three views have been formed and are too firm.

While Liu Tan was thinking about this, Lu Xuan said with regret, "Whatever it is, it's a pity that I can't witness such a grand spectacle with my own eyes."

Liu Tan didn't think of hiding it. After all, it was just a technology. If it was successful, it would still be promoted. However, he quickly realized that if it was a problem in the palace, it would not be appropriate to let Lu Xuan enter the palace at any time.

In fact, Liu Tan didn't really want to do it in the palace. Although he had done grafting outside of class in the past, he couldn't say whether it would be successful.

If it happened in the palace, it would be fine if others found out, but if Liu Fuling found out, who knows what would happen.

Liu Tan suddenly remembered that Miao Rui and the others had mentioned that they had a manor, which seemed to have been given to him by Chen Ajiao. He turned to look at Fu Yu and asked, "Is my manor far from the imperial city?"

Fu Yu said, "The manors my lady owns are naturally in prime locations, very close to the imperial city."

Liu Tan said happily: "Then we'll find time to go and have a look later."

After that, he said to Lu Xuan, "If the place is suitable, I will do the grafting there. You can come and play then."

Lu Xuan responded decisively, "Okay!"

Perhaps because it was getting late, Lu Xuan stood up and said goodbye, although he was a little reluctant.

After Liu Tan sent him away, he went into the study and tried hard to recall the remaining grafting knowledge in his mind.

He sat at his desk and tried hard to recall. He remembered that the main factor for the success of the grafting technology was the affinity between the two plants. In Liu Tan's understanding, this affinity meant that the closer their relationship, the easier it would be to succeed.

Liu Tan thought about it. Although the grape varieties vary greatly due to the long geographical distance, they are still from the same family after all. There shouldn't be any problem, right?

Liu Tan thought about it while writing down the points to note about grafting. When he finished, he felt that he couldn't show it to anyone. There were only a few lines of words on a piece of paper, and the words were rather general. What if someone asked him why he did it this way? What if he didn't know the answer even if he had to?

Liu Tan folded the paper and put it into a small box. He decided to do it himself and find two people with good hands and good mouths to do it for him, so as to avoid encountering a million questions.

Li Xi was quick to act. Five days later, Li Buyan came to Liu Tan and told him that he had found what he wanted.

However, Li Buyan didn't say anything fatal, but simply said, "These species are extremely similar to the flowers, leaves, and fruits of Western Region grapes, so my father ordered people to find them all."

At that time, Liu Tan had just finished physical education class, and his mind was full of doubts about life. He didn't understand why he had to work hard to develop in all aspects of morality, intelligence, physical fitness, aesthetics and labor after traveling through time. Couldn't he just be a quiet otaku?

Then the facts told him that no, he still had to deal with those grapes.

Liu Tan just dragged his heavy body and followed Li Buyan to the Li family.

Li Xi brought all the plants to his home, fearing that others would know that Liu Tan was helping him. If successful, it would be fine, but if he failed... he was worried that it would affect Liu Tan's reputation.

The Li family today is very different from before. I don’t know if it’s Liu Tan’s illusion, but it seems that there is a feeling of desolation and decline even from the door.

After entering the inner courtyard, it was even more different from before. Probably because he no longer had a title, the whole house had shrunk a lot, but the population had not decreased, causing Liu Tan to always feel that the house was a little crowded.

Walking all the way to the side yard, Liu Tan was shocked as soon as he stepped in - the yard was full of shelves, and all kinds of plants were wrapped around the shelves.

Liu Tan actually didn't quite recognize the appearance of grape branches and leaves, but he could guess.

Li Xi bowed immediately upon seeing Liu Tan and said, "Your Highness, everything you requested is here."

Liu Tan's eyes widened as he asked, "How... did you get so many?"

Li Xi explained, "According to my research, there are dozens of grape varieties that people see every day, with branches, leaves, flowers, and fruits similar to grapes. Several of these are found deep in the mountains. I've already sent people to look for them. I've brought these over first, as they're relatively easy to find."

Liu Tan asked curiously, "Does anyone grow this? What do they use it for?"

Li Xi replied, "It can be used as medicine or made into mixed fruit vinegar."

Liu Tan understood. He looked around and found that the ones Li Xi had chosen were probably those that had grown for a long time. Liu Tan had said before that they had to be strong enough, so naturally the longer the thought lasted, the stronger it would be.

Li Xi introduced the categories of grapes while he was looking at them, and Liu Tan nodded seriously while listening.

However, #I didn't understand any of it, what should I do? Waiting online, it's urgent#

Fortunately, Li Xi wasn't his teacher and didn't ask him any questions. After he finished speaking, Liu Tan waved his hand and said, "Transfer all of them to my farm first."

Li Xi also ordered people to take action immediately without saying a word.

Liu Tan did not participate in the transplanting process. He just told Li Xi to come back to him after the grapes have completely adapted to the climate on his farm.

Half a month passed in a flash, and half a month later Liu Tan set foot in the manor under his name for the first time.

After riding the ox cart out of the palace, we could see many villages near Chang'an. It must be said that after all, it was around the capital, and the population was very dense.

However, the situation changed after about half an hour. The population gradually became sparse, and then it turned into large tracts of farmland. Although there were people working in the farmland, there were not many, and there were no houses to be seen. There seemed to be one or two thatched houses occasionally.

This situation did not last long before he saw a very obvious rammed earth wall.

Fu Yu explained quietly beside him, "Your Highness, just go in from here."

Liu Tan's spirits lifted, and he thought that since he had been riding in the ox cart for over an hour, this village couldn't be too close.

But think about it again, it is obvious that the road and the speed of the car are slow. No matter how fast the ox cart is, it cannot compare with the horse carriage. However, it has one advantage that the horse carriage cannot match, which is that it is stable enough.

This kind of stability is very precious when the road is not smooth enough.

Even so, not everyone can ride in an ox cart. You have to know that oxen are important production materials at that time, and most people are reluctant to let oxen pull carts.

No matter what, it's the road's fault. When he gets the chance, he must repair this broken road!

As for how to fix it...let's wait until he deals with the grapes first.

After all, no one will die if the road is not repaired, but if grapes cannot be grown... I'm afraid people will really die.

Li Xi may not die, but his subordinates are not so lucky.

Liu Tan was thinking about all sorts of things in his mind, and after a while he suddenly came to his senses - they had entered the rammed earth wall for a long time, why hadn't they arrived yet?

In order not to show his ignorance, he refrained from asking, and this restraint lasted for nearly a quarter of an hour.

A quarter of an hour later, he finally saw a row of buildings. Because it was a royal villa, this area of ​​buildings was much neater and more elegant than the previous residential houses.

Liu Tan was very moved when he first moved into Sui Yu Palace. Before, he lived either in a dormitory or an ordinary house of 80 square meters. At his age, it was already very good to have an 80-square-meter house of his own.

Sui Yu Palace didn't know how many times larger it was than his house. Now, the main area of ​​this manor was three or four times that of Sui Yu Palace, not to mention the large tracts of land in the manor.

Liu Tan felt like a country bumpkin, but in order not to reveal the fact that he was a country bumpkin, he had to try hard to appear calm and try not to look around.

He finally understood why Lu Xuan felt that the golden horse he gave him was not valuable enough. This manor was probably more valuable than the golden horse.

Liu Tan got off the ox cart and got on a shoulder sedan chair. He didn't have time to visit his own garden, so he asked someone to carry him directly to the grape planting area.

When he got there, he saw that the grape vines, which had been lush and green, now looked droopy. He asked with some concern, "Why do they look so droopy?"

Li Xi explained, "Transplanting the trees here already consumes energy, and now that the weather is getting cooler, it's also the season for the leaves to fall."

Li Xi wanted to sigh when he said this. These were the strong grape seedlings transplanted within the area of ​​Chang'an. It was not easy for those grape seedlings brought from the Western Regions to survive and reach Chang'an. It was almost impossible for them to grow in Chang'an.

Liu Tan felt relieved after hearing this, but Li Xi also reminded him that winter was coming soon.

Both grafting and growth must be done in spring, and the current weather is really not suitable.

So he asked, "Does Father have a time limit?"

Li Xi was even more distressed after hearing this: "Your Majesty, you must see these grapes ripen next autumn."

Now even surviving has become a problem, let alone being mature!

Liu Tan: ...

It would be too late to start in the spring.

However, this level of difficulty is not a problem for Liu Tan, the time traveler. Since the temperature is not suitable, he might as well build a greenhouse.