Three four-wheeled carriages were running on the earthy road, the one in the middle was the most luxurious. Lao Qiu accompanied Zhu Xi and sat on the carriage in the middle. Huang Gan also sat on the carriage with him. Huang Gan's task was to take care of his teacher and father-in-law at any time.

Zhang Haisan sat in the carriage in front to guide the way. The carriage and the carriage following behind were sitting with a group of rich disciples. For safety reasons, two guards were specially arranged.

This is to go to the fields to inspect the novel crop of sweet potatoes.

This is not the first time Zhu Xi has been riding this carriage. When I first rode, I felt that the feeling of riding this carriage was so comfortable. It was not the feeling of riding a carriage in the past. On the other hand, Zhu Xi had enough of the two-wheeled carriage that I went on a long trip. It was bumpy all the way. If I sat for a longer time, my old bones would almost fall apart, which felt like I was abused. In comparison, this four-wheeled carriage was running on the cement road, as stable as the wind, and I could hardly feel any bumps. At that time, Zhu Xi thought that this was probably due to the fact that the cement road was well repaired, but could such a road be afforded by the Song Dynasty?

But now, the carriage is running on a dirt road that is even simpler than the official road of the Song Dynasty. It feels like it is a little bumpy than running on the concrete road. It is much better than the two-wheeled carriage, so Zhu Xi can enjoy the scenery along the way with leisurely. It is already autumn, and the road is still green, with green grass and trees around. There is no sign of autumn leaves withering or red leaves floating.

Turning east and west, the closer you go, the narrower the road becomes and the worse the road conditions become. However, although the bumps of the carriage are much larger, Zhu Xi still feels that it is far from comparable to the violent bumps of the two-wheeled carriage.

So Zhu Xi intended to ask Lao Qiu next to him. Zhu Xi thought that Lao Qiu was good at being a teacher, and let’s see what he could tell in this carriage. Zhu Xi said:

"Mr. Qiu, I am old and I can't stand the bumps when I usually ride in a carriage. Is it comfortable to ride the four-wheeled carriage made by Chief Executive Mao? I wonder what is the mystery. Can Mr. Qiu solve my doubts?"

Lao Qiu thought to himself that this is a high-end carriage specially used by the Special Administrative Region to receive. Can it be uncomfortable?

"Mr. Yuanhui, this carriage has some differences from ordinary carriages. It integrates many advanced technologies in this era. Well, let's put it this way, Chief Executive Mao spent a lot of thought on this car. First, this carriage has four wheels, and four wheels are much better than the two wheels. However, Mr. Yuanhui should not underestimate it. Adding two wheels is also very tricky. The front two wheels in this car have a steering mechanism. The front two wheels can be freely turned, so don't underestimate the front wheel steering. With this steering mechanism, the carriage will be very smooth when turning. If there is no steering mechanism, if it turns urgently, it may overturn. Even if it does not overturn, it cannot overcome the centrifugal force well. Oh, anyway, the turning is not working, and it is most likely that the wheels will leave the ground on one side, and it is uncomfortable for people to sit on it. This is one of them."

Lao Qiu said casually and then he touched the centrifugal force. He thought that he should pay special attention in the future. Don’t accidentally reveal various technical concepts and vocabulary from later generations.

After that, Lao Qiu played again:

"If I had known how to build a four-wheeled carriage with front-wheel steering in the Spring and Autumn Period and the Warring States Period, the chariot war would probably have to change its tactics. I still don't know if Qin could ultimately unify the world!"

At this time, Lao Qiu thought of the four-wheel drive SUV in his previous life. He dared to run any broken road. If he drove to the battlefield of the Warring States Period, hehe, wouldn’t that be invincible in the world? But then he thought that Bai Qi would dig a pit. The four-wheel drive SUV was probably good for Han, Wei and Zhao, but it was still unreliable to deal with Qin.

Zhu Xi smiled:

"We cannot ask the ancients."

Zhu Xi is also a historical materialist!

However, when it comes to this matter, Lao Qiu was a little confused. In theory, we Chinese are smart, why didn’t we build a four-wheeled carriage with a front-wheel steering mechanism until the Song Dynasty? It seems that the West was built in ancient Rome.

At this time, the four-wheeled carriage could no longer move forward, so he had to stop here. Zhu Xi got off the car with the help of Huang Gan and Lao Qiu. Zhang Haisan called out and walked towards the sweet potato field. There was still a long way ahead to reach the land.

Lao Qiu got off the car and walked straight forward. Huang Gan originally wanted to support Zhu Xi, but Zhu Xi felt that his legs and feet were almost the same, so he insisted on leaving by himself.

"Doctor Peng is very skilled in medical skills. My leg is no longer injurious. Haha!"

"That's good! That's good! Mr., please don't be too tired when he is old." Lao Qiu thought to himself that Lao Peng's medical skills are really powerful, and he can't accept it.

"Mr. Qiu continued, and just now, there are two or three?"

"Second, this carriage uses bearings, now it is a sliding bearing, and when the rolling bearings come out in the future, it will be even better. However, this has little to do with riding comfort."

Zhu Xi remembered another new term "bearing". As for what is sliding bearing and rolling bearing, Zhu Xi didn't ask deeply.

"Third, this carriage uses elastic suspension devices and uses leaf springs and springs. The function of the leaf springs and springs is to reduce vibrations." Lao Qiuxin said that this carriage is really a high-end configuration without bragging, and both the leaf spring shock absorption and the spring shock absorption are on.

Zhu Xi also knows about springs. As for "elastic suspension", "lead springs" and so on, what are that?

"Fourth, Mr. Yuan Hui noticed that the rim of the carriage was not present. The outer layer was a cowhide tire, and the inside was wrapped with a sponge. The sponge was born from the seabed. It was extremely elastic and was very difficult to get. With this sponge tire and the leaf spring spring, the riding performance was greatly improved." Lao Qiu estimated that the development of submarine resources in this year was basically zero, and the number of natural sponges should be quite large, but it was difficult to find a large number of sea areas that were breeding in a large number.

"Get teaching!" Zhu Xi could not have imagined that there were so many roads in a car.

When Lao Qiu said excitedly, he showed off:

"Mr. Yuanhui, tell you, this is not the best carriage. Do you know that Chief Executive Mao has been trialing a hollow pneumatic tire. The principle is like the blowing football used in the Song Dynasty Cuju. It will be more elastic and more comfortable to ride. However, the trial production process has many twists and turns, and the tires cannot last long, and it will leak if they are not done well. However, the progress has been good recently and it should be practical in September. If the pneumatic tire passes, it will almost catch up with the level of the Ha Tang Kingdom."

"Oh, really?"

"The most famous carriage in the country of Ha Tang is called 'Terrible to death', which means pneumatic tires. Why is it called 'Terrible to death'? It means that the carriage is impeccable, and the horse will not get any problems even if it runs until it is exhausted."

In fact, Gu Yongqiang, who participated in the pneumatic tires, complained one day that there was no rubber, but he had to force the pneumatic tires. After more than three months, people almost had to die of fatigue. It was not about building a "Rolls-Royce".

"Oh." Zhu Xi smiled, thinking that this person surnamed Qiu really likes to talk about Hu Chuhai, but the pneumatic tires are quite exciting.

The group came to the ground, but in fact they were already harvesting sweet potatoes, so there was no need to do a face-saving project for Zhu Xi.

Zhu Xi looked at the appearance of sweet potatoes growing in the soil with interest. This thing is as long as taro, but it is much larger than taro.

Zhang Haisan had already prepared the stool, so Zhu Xi asked his disciples to look at it more and ask more. He sat on the stool and stared at it. After all, he was old and there was no need to stand stupidly like a young man.

Zhang Haisan was well prepared and brought a scale with him. After a piece of soil was collected, he loaded the sweet potatoes. The final result was:

"Two acres of four cents of land produce 2,100 kilograms of sweet potatoes, and the yield per mu is 875 kilograms, which is 525 kilograms."

After Zhang Haisan finished counting, Zhu Xixin said that the yield of sweet potatoes seemed to be very high. Thinking about it, he asked again:

"Have you applied fertilization? What kind of fertilizer is applied?"

Huang Gan replied:

"According to the farmer, he put some wood ash on it."

"Didn't you apply that struvite?"

“No.”

Zhang Haisan explained:

"This farmer was reluctant to use the struvite at first, worried that it would be in vain. Later, he learned about the function of the struvite. The season had been missed, so he no longer thought about the struvite."

"So that's it." Zhu Xi nodded.

Zhang Haisan said with the flow:

"That day, the sweet potatoes can be harvested 1,500 kilograms per acre. That was witnessed by the Duke. This is an ordinary land, not as good as that of paddy fields. It can produce as much as eight or nine hundred kilograms now, which shows that this sweet potato is a best farm crop."

Zhu Xi's disciple Huang Yiyong witnessed what appeared in the ground with his own eyes. He was quite shocked and said happily:

"I wonder if this sweet potato seed can be so high-yield when introduced to Jiangxi?" Huang Yiyong is from Jiangxi, so he immediately thought of introducing it back to his hometown to benefit his hometown.

This time Lao Qiu will no longer let Zhang Haisan steal the spotlight, and said with a smile:

"If sweet potatoes are adapted to various lands, they can grow sweet potatoes in a cold place like Xiayi Island. If you take a little care, you will produce six or seven hundred kilograms of sweet potatoes in a season. There is no problem. You can choose seeds slowly in the future. After breeding good varieties, the yield per mu can easily reach one or two thousand kilograms."

When Zhu Xi heard about Xiayi Island, he became interested and asked:

"The Xiayi Island is said to be a bitter and cold place, and can it be highly productive?"

Lao Qiu thought to himself, Zhu Xi was off topic, but I liked it, so I showed off at that time:

"The climate of Xiayi Island is actually roughly similar to that of Liaodong. Although winter is cold, there is also a suitable climate in spring, summer and autumn. Slowly speaking, planting sweet potatoes means planting rice, and the output is not bad. Of course, the climate there is not as good as Taiwan, but the territory is larger than Taiwan. The most commendable thing is that it is rich in whales and the number of fishing groups is unimaginable. Besides, it is a rare land to raise horses. Imagine the situation of galloping horses! Mr. Yuan Hui, Mr. Qiu, when he has free time, he really wants to go to Xiayi Island. I don't know if Mr. Yuan Hui would like to go with him?"

Zhu Xi laughed, looking really happy, shook her head and said:

"I want to go there to see it, but I am old and cannot withstand wind and cold, and cannot withstand long-distance sea voyages, otherwise I really want to go and see it."

I have watched the harvest of sweet potatoes on the spot, and then I went to see the harvesting of rice. The rice in Kaohsiung can be ripe three times a year and can be planted at any time. Zhu Xi’s hometown of Fujian mainly planted rice. When I look at the rice ears, I know that the yield is not lower than that in Fujian.

Finally, I took a quick look at the sugarcane that was growing well, and Zhu Xi's inspection of the special zone agriculture came to an end.

In fact, Mao Geng didn't devote much effort to agriculture, which means he gave a three-year tax exemption policy. However, the enthusiasm of farmers in the Song Dynasty to farm cannot be stopped. If it weren't for the rumors that Taiwan's miasma prevailed, Fujian, which had a large population and a small land area, would have had countless farmers flocked to the Special Administrative Region.

Zhu Xi thought to myself, I tried my best to implement the "Jingjie Law" and wanted to re-measure the land, but it was not enough. Now that Taiwan has a lot of land, there is more land on Xiayi Island. After all the farmers come out to farm across the sea, the land in Fujian will not be so tense, and there may not be too much resistance to measuring the land at that time.

Zhu Xi told Lao Qiu about this idea. Lao Qiu thought to himself that if the matter of measuring land was put into the future, with handheld GPS (handheld GPS area measurement instrument), measuring land would be a simple task. Later rural cadres only need to find a sunny weather and measure the authoritative land area without much effort. If you want to conceal it, there is no way to go! However, later farmers don’t care about the few acres of land, and you can measure whatever you like.

Lao Qiu thought to himself, this old man really has a persistent spirit, and he will not give up what he decides. Speaking of which, the size of the magistrate of Zhangzhou is equivalent to that of the municipal-level leaders. I have never heard of the fact that he will resign himself if he becomes a municipal-level leader in the future!
Chapter completed!