Li Chunfeng did encounter some problems, but they were not fatal, because the direction he set with a sextant was the equatorial zone, and the equatorial zone of the Atlantic Ocean belonged to the low pressure zone, and it was also the convergence zone of the southeast trade wind and the northeast trade wind, the wind was weak, the wind direction was uncertain, and it was a relatively stable windless zone at sea, but the updraft in this zone was strong, and the annual precipitation was more than 2,000 millimeters.

How much is two thousand millimeters? Two meters.

That is to say, the route he took, although it was stable, but it often rained, which made it difficult for them, in the unstable wind direction, often rained, the whole fleet could not go fast, and it took more than four months for them to reach the South American continent.

By the time they went ashore, the nets were almost all rotten, the fuel carried by the boat was also used up, and the wood of the hull was soaked in water, decaying and expanding, causing the entire hull to begin to deform, and the clad steel plate also fell off, and even the best ship did not dare to use it for sailing in the open sea.

Fortunately, when they were about to collapse, they arrived on the South American continent, and on this continent, they soon saw the stone tablet left by Zhao Long, and the local natives were very afraid of them, and basically asked for something.

It's just that with the local level of craftsmanship and the ability of the technicians accompanying the ships, they can't repair these ships at all, so Li Chunfeng and others, who have confirmed that this world is spherical, can only stay in the local area, and even plant some crops in Africa locally.

Of course, it is still uncertain whether they will be able to return with the ship after Zhao Long goes to South America again, because South America is very large, and Zhao Long may not go to the location of the city-state where they are located, and Li Chunfeng does not know when Zhao Long will return to South America again.

Zhao Long's real supply place is actually in the more cutting-edge island of Luzon, their current navigation ability is not comparable to three years ago, after using solar energy, as long as the weather is good, distilling pure water, cooking and other aspects of life, they need very little fuel.

And after having fishing nets made of sisal, they basically don't have to worry about food at sea, they only need to bring more dried vegetables, cultivate more fast-growing vegetables on the boat, and improve the food, Zhao He even thought of raising some high-laying chickens on the boat to improve everyone's food.

Three days later, Zhao Long set off again, Sun Xiangfu's life, also entered the normal track, next year before the summer, in the next few months, he will be in Guangzhou City, teach everyone, out of season to plant these field crops, so that the local people, all year round have tender corn and sweet potato crops to eat, and then, he will go north to Liaodong.

Of course, his life is peaceful, does not mean that the world is calm, in the era of low political civilization, people often do not perceive the changes in the external environment, the impact on the internal country, the rapid development and change of the Tang Dynasty, it has caused a series of changes in the West.

Li Shimin's order finally reached the Anxi Dadu Protectorate, and the armies immediately began to mobilize, organizing hundreds of thousands of people from various countries who had previously poured into the Tang Dynasty to escape the war, and began to demarcate the route, digging earth kilns, mining gravel, burning cement, tamping the roadbed, and building a cement road from the Anxi Dadu Protectorate to Chang'an.

Previously, when Changsun Chong was building Broken Leaf City, the technology of these infrastructure projects had already been introduced, and Tai'an City, which was only less than 3,000 miles away, had the industrial capacity comparable to that of Shanyang before, all kinds of convenient and easy-to-use tools, and skilled command talents, and also began to send them to the west, so the speed of the entire project was not satisfied.

When Broken Leaf City announced the news that there was no limit to nationality and unlimited recruitment with a consistent monthly salary, many neighboring countries in the Western Regions appeared a wave of people who were even more surging than those fleeing the war, and began to pour into Broken Leaf City.

That's a consistent amount of money per month, you can buy more than three stone of grain in the local area, and when you work, you also have work clothes to be distributed, and you can eat two full meals, and after a year, not only do you not have to worry about starvation, but you can also save twelve yuan, who would not want these people in the poor kingdom?

Therefore, more than 300,000 Tang troops stationed in the territory of the Anxi Metropolitan Protectorate have become the supervisors of more than 2 million labor troops, who are specifically responsible for giving them a living material guarantee, even if they have entered the cold winter season, they are also opening up caves along the planning route, all the way, just one month, tens of thousands of caves have been built, and a large number of cement has been fired.

According to the expected plan of Duan Zhixuan, who is temporarily responsible for the overall planning, after March next year, even if every 10,000 people only build one mile of road a day, more than 2 million people can repair more than 200 miles a day, more than ten days, they can directly repair from Broken Leaf City to Tai'an City, plus the surrounding Tingzhou, Xizhou, Yizhou, Shangqi, etc., equal lines, and after passing the sandbank, the routes to various state roads, and then connecting with the cement road in Guanzhong, all of them must be done, and it will not take more than six months, before the winter snow falls next year, it can be all done.

Of course, what is said here is only the original suitable for paving the land pavement area, many places with rivers, but also need Chang'an to send a professional engineering team to build bridges, because, this period did not have the same technology as the later generations, you can meet the mountains to open the mountain, meet the water to build bridges, the quality of the cement road they built, and the highway of later generations, is not at the same level at all, at most it is a wider country road, when encountering ridges, lakes, and wider rivers, all need to detour.

Therefore, although the straight-line distance from Broken Leaf City to Chang'an is only about 8,000 li, this road should be more than 10,000 li, of which more than 2,000 li is detoured.

The total length of the roads that need to be built for the entire construction project is more than 25,000 miles, because they also need to build the forks to the states.

Coupled with more than 300,000 troops and the manpower dispatched from Guanzhong, this super project has a total investment of nearly 3 million people, but even such a big project, the imperial court did it without blinking an eye, and it was also required to be basically completed within a year.

The preliminary budget given by Gao Shilian, the secretary of the Ministry of Finance, is 150 million yuan.

Because, just to give more than 2 million workers in the Western Regions, it takes nearly 40 million guan, 3 million people's food and vegetables, and a certain amount of meat supply to add up, even if the cost of these things in Datang is not high, but at least more than 10 million guan, plus the transportation loss of cattle and horse dispatching, it may even reach 20 million guan, after all, this is a span of 8,000 li, a radiation area of 25,000 li of territory, with the output of the western states and counties, it is simply impossible to support the food and drink of such a huge group on the spot, after all, the states and counties in this direction, The population is relatively small, and the food production is not high.

The expenditure of 50 or 60 million yuan is only a small amount, and the real large part of the expenditure is the various tools needed, millions of shovels, all kinds of road rollers, stone pounding tools, as well as wood formwork for framing the roadbed, coal fuel for burning cement, etc., some can be used natural, and most of them need to be purchased and transported.

This is another consumption of tens of millions.

And Datang does infrastructure technical workers, not take the low-cost wages of those Western Regions laborers every month, at least several times, or even more than ten times, and build bridges, which require a lot of steel bars, these things are not cheap, although they try to use a bypass to avoid repairing bridges, but hundreds of larger bridges are still needed.

The technology of building bridges in the Central Plains has a long history, the bridge that can cross the Wei River, the Ba Bridge that crosses the Ba Shui, is not small, but after the cement steel bar, the imperial court has higher requirements for the quality of the bridge, even if it can not be compared with the highway bridge of later generations, but it is not worse than the bridge of the rural road of later generations, at least to ensure that the car with a load of several thousand catties can be walked on it, without pressure.

Therefore, this project, the need for these years has been in the infrastructure project engineering technology, there has been greater progress in the engineering group, once again to improve their own technology, at most two years, to achieve the whole line, and along the way to change horses to rest of the station, inn and other supporting facilities, all keep up, three years later, when the next sports conference is held, this road, to achieve rapid and smooth use as a whole.

Moreover, the construction plan of this highway has nothing to do with the annual expenditure of more than 50 million yuan for the construction of Datang's internal infrastructure projects, which was proposed by Li Chengqian, and should be carried out at the same time.

200 million yuan was spent on infrastructure construction at once, not to mention, medical care, education and other expenses, in the entire history, there is no one.

However, Datang is so daring to spend money, even if it is a loan, no one disagrees, because now everyone knows that the imperial court spends the money, and it is the people who benefit, and the infrastructure is good, the output efficiency of the people is high, and the business is more developed, and then it will continue to give back to the imperial court's taxes.

As millions of laborers from the north gathered in Shannan Province, Li Shimin and his wife and the crown prince Li Chengqian, who spent the New Year in Shannan Province for the first time, saw the scene of millions of people working together and building fields.

In the past, the people in the north would choose the cat winter when it came to winter, but now, they have a few months to participate in labor in the south, which makes their production creativity more than double that of before.

By next year, the entire Shannan Province will reach 15 counties, and all the subordinate counties of Jingzhou, Yingzhou, and Fuzhou will be completed.

The high-yield paddy fields in these 15 counties will reach 25 million mu, and the greenhouse vegetable fields will reach 3 million mu.

It's just that because of planting so many fields in Yuantian County, too many people are needed, just rice fields, need one million households, more than 3 million people to plant, plus other planting industries, these three states, there will be 5 million people, except for the people of most of the states and counties in Shannan Province, have migrated here to a certain extent, and many people in the north have settled here, and the more than 2 million laborers hired by Tammodao can be regarded as completely staying.

Due to the inability to let Shannan Province concentrate the national population without restrictions, so that the population of other state roads is more sparse, and the construction of the fields will be slowed down in the future, and the new local fields will only be organized according to the number of local population growth, but with these three states, the core of the entire Shannan Province will be established, and it will be able to continuously drive the economy of the surrounding states and counties, and the effect of Chang'an and Weinan New City in Guanzhong is the same.

With the advent of the New Year, the construction engineering team originally concentrated in Jiangling City gradually began to evacuate, going to Lingnan and Yunnan, only a small number of people, staying to continue to build Jiangling University, which will be a scale, departments, the most complete top university, in the second half of next year, will be completed one after another, when the time comes, the department that has recruited teachers will be the first to open school, however, in the second half of next year, the pressure on Datang talents will be much easier.

Because, in Jiuyuan County, there are at least 1,000 students who have graduated from junior high school, and after the imperial examination reform of the imperial court, there are at least 1,000 people who get a national diploma every year, and it should be no problem to hold up the stall.