At noon the next day, Wang Zheng got off the boat directly at Jiangxin Island. It was so fast to go downstream. If he had to walk, it would take at least five days.

Seeing the official ship docked at Jiangxin Island, Zhang San came over to check immediately. When he saw that it was Wang Zheng and Li Si who returned, he excitedly ran over to help lead the horses.

"Master, you are finally back. I have been waiting anxiously."

Li Si patted Zhang San on the shoulder and said with a smile: "I learned some skills in Chang'an, I will teach them to you later."

"OK."

Wang Zheng, who was walking in front with the horse, asked, "Is everything okay while we're away?"

"Everything is fine, but I feel a little depressed staying alone in Jiangxin Island. I always hope that you can come back earlier. Master, did this trip go smoothly?"

Wang Zheng, who had already arrived in front of the house, said with a lack of interest: "You can ask Li Si later. I'm tired and need to take a rest first."

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The two walked around, climbed over a hill, and returned to the riverside. Wang Zheng saw a flat grassland with a radius of more than two kilometers in front of him, and asked in surprise: "Isn't this place great? Why hasn't anyone developed it?"

Luo Wu didn't know whether to laugh or cry at his daughter's suggestion. Thinking of his daughter doing farm work, he sighed and said, "Okay, if you want to go, go ahead."

On the way back, we passed by a large tung oil tree forest. The ground was covered with tung nuts, some of which had even begun to sprout.

Farming will inevitably cause soil erosion. The land will naturally dig down a little bit every year. In this way, won't there be new stones every year? This kind of land should not be dug with an ordinary hoe, but should be turned over with a two-tooth hoe. Once the land is turned over, it doesn't matter what you use when farming.

My father told me that they had planted crops here for a few years before, but they planted and picked up stones every year, and there were still so many stones every year, so they finally gave up.

The next day, after a good rest, Wang Zheng went to the Ba tribe and found Luo Wu who was busy with spring plowing. He wanted him to send a few people to show him around.

"It's not much, but it takes a lot of hoeing, and it's very annoying to dig the soil."

"Brother, just tell me what you want. I'll ask father to bring it to you when we get back." Luo Xiaomei said generously.

Zhang San looked at the tall horses and asked happily, "That's good. How come you brought back so many horses? They are really good horses. Did someone give them to the owner?"

"When did you come back? Come on, let's go back and talk. Let's have a drink and have a good chat."

Wang Zheng thought for a moment and asked, "It's impossible that there are so many stones every year, right?"

Looking at the two or three mu of tung oil trees, Wang Zheng asked curiously, "With so many tung oil trees, why doesn't anyone pick them up to make oil?"

Luo Wu was very happy to see Wang Zheng. Wang Zheng's appearance here proved that the problem had been solved and his tribe was completely safe.

First, take a look at the land conditions and make some preparations. When the seeds from Lingnan arrive, we can start sowing the seeds.

"Let's take a look first. It doesn't have to be a continuous area. As for whether the land is good or not, you have to see it to know. It just has to be suitable."

In fact, Quercus glauca is most suitable for firewood, because if it is cut down in winter, it will sprout again the next year, grow to more than two meters high in a year, and can be harvested once a year.

Wang Zheng smiled and nodded, then followed Luo Wu home.

The most common one is Quercus glauca, a type of oak. Its fruit can be used to make tofu, which tastes a bit astringent, but no one would dislike it during famine.

The land of Bashu is not that cold, and the leaves in the forest are basically broad-leaved trees.

Luo Xiaomei's eyes lit up and she asked anxiously, "Brother, do you know how to make tung oil? Can you teach me?"

Luo Wu smiled and said, "I think you just want to be lazy, right?"

"Brother, please have a drink."

Since you are in charge of a farm, don't you have to develop some farming activities?

Wang Zheng raised his eyebrows and said, "I do know how to refine tung oil, but what do you plan to use in exchange?"

"How about you go and I'll work at home?"

Wang Zheng nodded and smiled, "Not bad. I was able to come back so quickly because things went well and all the problems have been solved."

Luo Xiaomei said listlessly: "This piece of land is just pebbles everywhere, above and below the ground. After planting for a year, it's not enough to pay for the hoe. Who would want it?

The surrounding area is also surrounded by hills with relatively small elevation differences, which can be reclaimed into terraced fields in the future. It is a very good place, and the yellow soil can ensure the sweetness of the sugarcane.

Luo Wu pondered for a moment and said, "There is no good flat land nearby. It may be difficult to meet your requirements. Even in the old forest, there are few good places, otherwise they would have been reclaimed long ago."

Wang Zheng carefully looked at the terrain here. Overall, it was very flat. The diameter of more than two kilometers might not sound large, but it covered tens of thousands of acres. A small river flowed through the middle, ensuring that there would be no shortage of water here.

Hearing Wang Zheng's request, Luo Xiaomei thought for a moment and said, "I can take Brother around. I'm very familiar with this area. I'm not good at farm work anyway."

However, Wang Zheng did not make a decision so quickly. He planned to go to the other side of the river tomorrow to have a look. Anyway, there was plenty of time and there was no need to rush. After all, Wang Zheng could not find so many people to pick up stones at once.

After a brief chat with Luo Wu about his trip to Chang'an, Wang Zheng told him the purpose of his visit.

After all, not every place is suitable for every crop. Something like sugarcane is quite picky about the land. If you don't choose a good place, you may end up growing salty sugarcane.

"I just got back yesterday."

"I don't want anything. How about this? You bring your little kids and help me pick up the stones from the field. Then I'll tell you how to make tung oil. How about that?"

Hearing Wang Zheng's request, Luo Xiaomei was a little embarrassed. "Such a large area, with stones everywhere, how long will it take to pick them up? Brother, can't you change your request?"

Wang Zheng shook his head, “I can’t think of anything else I need.

Although that place is big, think about it, if I ask someone to pick up these tung nuts, refine them into tung oil and sell them, and then ask people to pick up stones, do you think I can make money?

Not to mention that this is a business that can be continued for many years.”