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Several people said that they were going to return to Yizhou City, and at this time, dozens of horsemen came here from the north, and when they came closer, Li Su saw clearly that it was Jin Daqian, who had gone out to find limestone for nearly two months.

After nearly two months of hard searching, Jin Daqian lost a lot of weight, and he was a lot darker, and after getting off the horse, Jin Daqian hurriedly walked towards Li Su and said: "Your Highness, the old slave is back, and he has lived up to His Highness's expectations, and has found a lime mine sixty miles east of Yizhou."

Li Su was overjoyed when he heard this, and patted Jin Daqian on the shoulder: "Thank you for your hard work!" ”

Jin Daqian thought back to the life of a savage in the past two months, and his heart was sour, and he said: "This is what the old slave should do, by the way, Your Highness, the old slave has brought some back, please take a look." After speaking, Jin Daqian asked the two family members to carry over a bag and open it in front of Li Su.

Li Su glanced at Li Su's white stone, picked it up and touched it with his hand, convinced that this was limestone, and his heart was even more happy, and said, "That's right, this is." ”

Kim Daqian finally breathed a sigh of relief when he heard this.

After confirming the limestone, Li Su asked Jin Daqian to take the family back to rest, and he asked a few guards to send the limestone to the research institute, which was now needed there.

With limestone, the next thing is to mine deposits, from this time planting seedlings, Li Su has already felt the problem of artificiality, with the expansion of the Tang Chamber of Commerce step by step, the artificial problem will become more and more prominent, although Tong Nian has been buying slaves, but there are fewer and fewer slaves in the market, this is because in recent years the Tang Dynasty has been peaceful, and there is no war, and there are naturally fewer channels to produce slaves, thinking of this, Li Su had to put his colonial plan on the agenda.

With limestone, Du Pingzhi quickly fired the cement, and now there are kilns, limestone, it is almost large-scale production, with cement, Li Zhuo's first thought is to build the road first, after all, if you want to get rich first to build the road, especially in a place like Shudi, it is more necessary to build the road.

After agreeing with Shangguanyi, the first cement road in Datang began to be built in Yizhou City, in fact, it is said to be a cement road, and more strictly speaking, it is a concrete road, because the simple cement hardness cannot keep up, and a certain amount of stone can be added.

The previous roads in Yizhou City are all tamped dirt roads, and the slightly better ones are at most gravel roads, so every rainy day, the roads are still very muddy, Li Su's plan is to pave up from Yizhou City first, and then extend to the county below, and build a few main roads out, of course, Yizhou City is all cement roads, but the county below is even if the amount of work is too large, it is impractical for today's Yizhou, and can only come slowly in the future.

The mining of limestone mines, the burning of cement, and the conscription were all about to be completed, and the time was already in May, and by this time it was time for the winter wheat to be harvested.

Because this batch of winter wheat adopts modern production technology throughout the process, the yield of winter wheat per mu has reached about seven stones, that is, the yield per mu of 814 catties.

20,000 acres of land was harvested, Li Su directly became a big grain household, 140,000 stone of grain so that he had to temporarily build more than a dozen grain depots, almost his mouth crooked, and because of cement, this batch of new grain warehouses are all made of sintered bricks and cement, the ground is paved with concrete, Li Su also specially bought waterproof materials to prevent rain and leakage in the future to soak the grain.

After harvesting the winter wheat, Li Su planted hybrid rice, and in the autumn it will be a grain harvest of more than 100,000 stones.

With limestone, coupled with the steelmaking furnace, the first batch of high-quality molten steel was produced in mid-March, and then, Li Su began to mass-produce steel manufacturing farm tools, Li Su still decided to put agricultural production in the first place, the people have money, consumption can keep up, this era of war is money and food, without money and food can not do anything.

The production of this batch of high-quality steel farm tools has been welcomed by the people, and it has set off a buying frenzy in Yizhou for a while, and even attracted many businessmen to buy and sell it in other states and counties.

Steel, cement has been solved, two of the four projects formulated by Li Su have been completed, and the rest is the steam engine and the flint, steel is the basis of these two things, Du Pingzhi is now using the materials provided by Li Su to imitate the steam engine, only steel is not enough to make this thing, and rubber has to be used, and rubber This thing Li Su will not produce here for the time being, he is for the monopoly, except that he will not let others produce the steam engine.

The difficulty of the flint gun lies in the production of seamless steel pipes, which is also the process that Li Su is preparing to monopolize, so he asked the modern machinery factory to produce a batch of manual lathes without electricity, in order to produce parts for the flint.

After two busy months, Li Su's immigration application finally came down, he asked Xia Yan in advance to use his relationship to acquire a batch of ancient firearms in country M in the name of acquiring collections, after the acquisition was completed, Li Su flew to country M, put this batch of guns into the ring, and went to the gun shop to buy a semi-automatic pistol, with additional bullets, but although country M can buy guns freely, but there are certain restrictions, in addition to only buying semi-automatic weapons, there are also restrictions on the number of bullets, so the number of bullets bought by Li Su is not much, But this is enough for Li Su to use, after all, he is used for self-defense, not for fighting, maybe not at all, all for the sake of safety psychology, after completing this matter, Li Su took the plane back to China.

Li Su made such a big move in Yizhou for a while, after all, it attracted the attention of all forces, and the court was constantly discussing him, especially the wheat with a yield of seven stones per mu made the whole court fried, but this news is absolutely true, because the news brought by the businessmen who traveled back and forth between Yizhou and Chang'an is the same, except for wheat, the most discussed in Chang'an is, of course, the new farm tools and the roads being paved in Yizhou, the problem of the road is okay, the officials are not interested in this, And those tough farm tools have aroused the suspicion of many people with hearts, Li Su can produce such good farm tools, and he can produce better blades, which is a big deal.

In the early days, Li Shimin listened to the courtiers' recitals a little tiredly, and these days his ears are full of the words Li Su and Yizhou, which include Li Su's praise of merit and virtue, and there are also accusations against Li Su without reason, all of which are some suspicious words.

"Enough! Since you were in Chang'an, you have accused him of rebellion, and now he has been relegated to Yizhou, he has just done a few things that are beneficial to the people's livelihood, and you are still so suspicious, do you really think I am blind? What is the one thing that Su'er does in Yizhou is not for the people, not for the Tang Dynasty? Li Shimin stood up and said angrily.

"Your Majesty is angry, the courtiers have no ill will towards the Six Princes, but they are just curious about how the Six Princes obtained these high skills, whether it is winter wheat or steel, or even papermaking, these skills are unheard of in the Tang Dynasty before." The eldest grandson Wuji spoke.

Li Ke sneered and said: "Father, the son also asked about this, Liulang's things are all from a distant country called Luo'an, because Liulang once saved a Luo'an merchant, so this Luo'an businessman is grateful to Liulang, so he taught some goods and advanced skills to Liulang." ”

"What the third prince said is extremely true, there are also merchants who call themselves Luo Anguo in the Guangzhou area recently, it is said that these merchants are very mysterious, but it is true that many people have seen them, and the goods they sell are also very peculiar." Cui Shao said.

Li Shimin pondered for a while, he also heard that this Luo Anguo businessman haunted the area of Guangzhou, to be honest, he was also very curious about the current situation in Yizhou, so he said: "Since you ministers are so curious about Yizhou, then follow me out to see Yizhou!" ”

(Huaxia Kingdom, last renamed Luo Anguo.) ）