After seven years of fiefdom, Li Shimin asked me to return and become the crown prince.

All the way south.

The road was still as wide and flat as before, with scattered villages and farmland on both sides, but some were green rice fields, while others had just begun to plant rice seedlings.

Completely different!

Didn't those who planted rice in advance remind those who sowed later that the rice seedlings could still mature now?

After walking forward for nearly half a day, the road was still straight, but a fork in the road was also seen. It was also made of this special material, but it was much narrower.

Just then, the caravan encountered a farmer resting on the side of the road. Li Shimin stopped the carriage and he got off. The one who was resting was an old farmer. He was also stunned when he saw Li Shimin coming down. He wanted to leave, but Li Shimin stopped him:"Old man, please stay!"

The guards hurried forward and tried to stop the old farmer, but were glared back by Li Shimin. He wanted to talk to the old farmer.

""Ah? What do you want to talk to me about?" The old farmer looked at Li Shimin and his group suspiciously, as if they were rich people.

""Old man, let me ask you why some people in your farmland are only planting rice now?" Li Shimin was puzzled at this time.

Planting in spring and harvesting in autumn has been passed down for thousands of years.

Don't people here know this?

"Are you merchants from outside Lingnan?" The old farmer looked at Li Shimin with a tentative tone.

Li Shimin did not deny it:"Yes, we are businessmen from outside the area!"

"It's normal that he doesn't know. His Royal Highness the King of Chu found two-season rice from Champa, which can be planted twice a year. They picked these to experiment with seed yields!"When the old farmer spoke, there was still envy in his eyes, but when he talked about the King of Chu, his eyes were full of admiration.

They also knew the yield of the first season of double-season rice, which was three stones each time.

Next year, they will also go to these people to ask for some rice seeds.

"Can we plant twice a year?"

Li Shimin's eyes lit up. If it is really possible to plant twice a year, then would there be a famine in the Tang Dynasty?

But when he heard about trial planting, he felt a little bored.

If it is really good, then why didn't Champa pay tribute?

So he didn't hold out much hope, thinking that Li Kuan was fooling around, and wanted to promote it just because he found two seasons of planting.

As for the results of the trial planting, he would just go to Lingnan and look at the statistical information of two-season rice there by Li Kuan. If there is really an increase in grain production, it would be the best.

Thinking of this, he skipped the matter of two-season rice and pointed to the hard ground and asked,"What's the matter with this road?"

"It's spacious, right? This was built by our Royal Highness the King of Chu. It took less than one and a half years, or two years, from the border of Lingnan all the way to Lingnan and then south. It was opened to traffic just before the New Year!" When the old farmer heard someone asking for directions, a proud look appeared on his face.

He was also involved in the construction of this road, and he had a share of the credit for making it so spacious.

The old farmer continued,"It looks like a cement road...."

But he didn't notice that Li Shimin's face was already gloomy.

Li Kuan, the prodigal son, actually spent a lot of resources to build a road that was almost never used.

Two years!

What a huge loss this is, and judging from the tone of the old farmer, there seemed to be a lot of civilians.

He didn't know that when Yang Guang dug the Grand Canal, he requisitioned millions of laborers and lost half of the family assets of the Sui Dynasty. This road might have cost all the family assets of Lingnan.

Thinking of this, Li Shimin wanted to rush to Lingnan right now and whip Li Kuan a few times.

After a few more words with the old farmer, Li Shimin got on the carriage with a gloomy face and said to Liu Renyuan:"Hurry up and go straight to Lingnan!"

Yes!

The convoy sped on the road again.

As it got closer and closer to the Lingnan city, the flow of people and vehicles increased instead of decreasing, and sporadic caravans could be seen pulling full carts of goods back.

The faces of those caravans were still filled with smug smiles.

What kind of goods are there in a foreign land like Lingnan?

Moreover, the further into the hinterland of Lingnan, the more fertile the rice fields seemed, and they didn't seem so desolate. In fact, he didn't encounter any bandits along the way. More and more people were coming and going, and they all had smiles on their faces, without any signs of barbarism.

Not far from Lingnan City, the pedestrians on the road were already shoulder to shoulder, almost the same as Chang'an City. There were tea stalls on both sides of the road, and there were many vendors selling snacks, and many people were sitting inside.

They were talking and laughing, and some of the snacks were something Li Shimin had never seen before, and they smelled delicious.

Everyone was drooling.

""It looks so delicious!" Cheng Yaojin stared at the snacks on both sides of the road, and his soul was almost attracted by the smell of food.

But Li Shimin didn't say to eat, and he couldn't cross the line.

At worst, he could go out at night and eat secretly....wrong...Are there still vendors here at night?

Turning a bend shaded by trees, a majestic and magnificent city came into view. Its scale was not less than that of Chang'an and Luoyang, and even surpassed them in some places.

Li Shimin and his companions were stunned for a moment.

"Your Majesty, this city looks like it was just built, about two years ago!" Liu Renyuan said again.

Judging from the age of the city wall, it seems to have just been built, without any signs of time.

Is Li Kuan going to rebel?

Building wide roads and such a magnificent city must be premeditated.

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