In fact, Xiang Kang's main concern was not the issue of his own kingship, but the internal problems that piled up in the territory controlled by the young marshal's army.

Thanks to Liu Laosan's blessing, after forcing the Qin court to surrender by force, only eight days have passed, and the young marshal's army is facing the danger of a comprehensive war with the princes' coalition forces outside the pass, and has to give priority to all manpower and material resources for military war preparations, Xiang Kang himself was forced to leave the command center Xianyang City, and rushed to Hangu Pass with the main force of the young marshal's army to deal with the threat of the princes' coalition army, and it was too late to gather the hearts of the people in Qin and establish a new Guanzhong regime, not to mention restoring the economy and people's livelihood, cleaning up the accumulated shortcomings of the previous dynasty, and developing science and technology and education. Apply the knowledge of Xiang Kang's later generations to the production and construction of this era.

For more than a month after leaving Xianyang, Xiang Kangleng failed to deal with a specific internal affairs matter, and all rear affairs such as economy, personnel, criminal law, water conservancy, farming, grain and grass allocation, and material supply could only be entrusted to Zhou Zeng, who was forcibly tied to the anti-Qin chariot by Xiang Kang, and the work of recruiting new soldiers, forming a new army, managing the local area, and preventing rebellion could only be handed over to the former Qin army county lieutenant Chao Zhi, who was a little careless. There is a danger of a fire in the rear at any moment.

Fortunately, Zhou Zeng and Chao Zhi did not disappoint Xiang Kang, during his stay in Xianyang, although Zhou Zeng, who was good at civil affairs, did not have any dazzling achievements, but at least he handled internal affairs in an orderly manner and never made any major mistakes. Chao Zhi also worked hard to do his own job, and urgently recruited 20,000 recruits for Xiang Kang in a short period of time, and went to the front line of the Yellow River, helping Uncle Zhou block the menacing Zhao army and the Shenyang Division, and did not give Shen Yang the opportunity to enter the hinterland of Guanzhong.

However, Xiang Kang was not satisfied with this, and just confirmed that the princes' coalition army was disbanded on its own, and on the way back to Xianyang after leaving Hangu Pass, Xiang Kang could not wait to prepare the development and reform plan of the area controlled by the young marshal's army, and regarded the already rich and prosperous Guanzhong Plain as his own rear construction, laying the economic, material and human foundation for the next step of dominating the world.

Time is in a hurry, cousin Xiang Yu's division of the world is also clearly trying to encircle and consume the young marshal army, and the princes outside the Guanwai whose fief is controlled by the young marshal army are already gearing up to kill the young marshal's army, Xiang Kang of course cannot reform the political system on a large scale, he can only temporarily continue to continue the three princes and nine secretaries system left by the Qin court, and then reform it into a more advanced system of three provinces and six ministries when the time is ripe, so Xiang Kang did not bother too much about the political system, and devoted his main energy to the most important two aspects of developing agricultural science and technology and military science and technology.

How to develop agriculture and military science and technology, as early as the time of Huaisi, Xiang Kang actually had a lot of planning, and more than once went deep into the front line of production and construction, to understand the farming situation of this era, and to study how to improve the cultivation technology that is still very backward at present with the fastest time and the least manpower and material resources, but at that time, Xiang Kang was busy with the military almost every day, Xiang Liang could reach out and seize power at any time, and the Huaisi area, which had no danger to defend, was not suitable for becoming a reliable and stable rear, and Xiang Kang never put it into practice. It's just that some of my thoughts are hidden in my heart and ready to be used in the future.

Now Xiang Kang can finally show his talents, with the main force of the young marshal army has just returned to Ningqin, Xiang Kang has already decided how to develop agriculture and expand grain production, one is to prepare to get the iron hoe out, the second is to implement the field substitution method, reduce the time of land shelf, the third is to improve the plough, replace the primitive plough that is still very backward in this era, and there is a more primitive cultivation technology.

Iron hoe is the easiest, there is a stone hoe in this era, but because the bronze is brittle, it cannot be cast into a hoe, and the iron-smelting technology is very backward, so until now there is no iron hoe. However, the replacement of stone hoes, which originated in the Stone Age, with iron hoes, can certainly improve the efficiency of agricultural production and civil engineering.

In this era, because the farming technology is too backward, the peasants directly turn up the land and sow the seeds, the grain output is small, and the consumption of land is large, in order to restore the fertility of the land, it is usually necessary to fallow for one year after cultivating once before resuming cultivation, and some relatively barren land even has to be fallow for two years.

In the first year, the seeds are sown into the ditch to obtain enough water to grow strongly, and the soil is flattened in the summer, and the roots of the crops are strengthened with the soil, which can resist drought and wind, and reduce crop lodging. In the second year after harvesting, the plough is a ditch, the ditch is a ditch, and the seeds are continued to be sown in the ditch, so that the same land can be rested in turns, which will not delay agricultural production, but also restore the fertility of the land.

The plough must also be reformed, there are too few ploughing cattle in this era, only the families of the aristocracy and the rich have ploughing cattle, the ploughing tools are still very cumbersome and primitive, the efficiency of ploughing is extremely low, the vast majority of ordinary people can only use more primitive ploughing to plough the land, and the cultivation efficiency is even lower, only the plough tools that appeared in later generations were invented in advance, and the eight hundred miles of fertile soil in Guanzhong can be more endless to provide Xiang Kang with military rations for killing people and setting fires.

Originally, Xiang Kang, who was from the city before the crossing, had no way to start even if he knew that he should improve the plough tools, but it was a coincidence, before the crossing, Xiang Kang often went to a farmhouse with fox friends and dog friends, and put all kinds of farm tools to decorate and attract customers, including not only the Quyuan plow invented in the Tang Dynasty, but also the manpower plough and foot plough that did not need to plough the ox, and also explained the use and name with words, which left a deep impression on Xiang Kang, who did not learn and did not know how to do it, and also just solved the problem that Xiang Kang is currently facing.

Xiang Kang's memory is not bad, and under the effort to recall, on the night of resting outside Ningqin City, Xiang Kang relied on his memory to draw the specific shapes of the curved plow, the manpower plough and the pedal plough on the three pieces of silk silk, and marked the approximate size of his own estimate, and the rest only need to make the real thing according to the drawing, and then through continuous experiments and improvements, it is certainly not a big problem to make these three advanced plows.

After the sketches of the three plows were completed, Xiang Kang threw down the brush, rubbed his sore wrist and saw the painting waste silk scattered all over the ground. Not only does it save me a lot of money, but I don't have to wipe my ass with leaves in the future? ”

This thought made Xiang Kang hesitate, because no matter how bad Xiang Kang's history is, he knows who invented practical paper, and robbed Cai Gonggong of the credit, if he ends up like Cai Gonggong, it will be miserable? As a result, just when Xiang Kang was a little undecided, Xu Ji, the captain of the pro-soldiers, suddenly carried a plate of food into the tent and said to Xiang Kang: "General Right, it's time for breakfast." ”

"Breakfast?" Xiang Kang couldn't believe his ears, and asked in surprise, "It's already dawn?" ”

"It's dawn." Xu Ji smiled bitterly and said, "General Right, you also pay proper attention to rest, why haven't you slept all night?" ”

Xiang Kang found that the sky outside the tent was already bright, and he had not slept all night unconsciously, so he also smiled bitterly: "You have to pay attention, if I do this again in the future, you remember to remind me, don't exhaust me." ”

Xu Ji was trembling at Xiang Kang's words, and he didn't speak, but just put breakfast directly in front of Xiang Kang, but it turned out to be a coincidence, what he ate this morning happened to be steamed wheat rice, and Xiang Kang didn't even pick up the chopsticks when he remembered another big thing, and couldn't help blurting out: "We must also invent the stone mill, grind out flour and carry it with the army, which can not only save cooking time, but also facilitate digestion and absorption, and you can also get some steamed buns and pancakes and dumplings to improve the diet, and you don't only need to eat yellow rice balls." ”

In fact, there is already a prototype of stone grinding in this era, but it is as primitive and backward as the farming tools of this era, bulky and huge, and it cannot be carried at all, and it is only used to grind water to drink, and it has never been used to grind noodles.

Because of this, after hurriedly eating a simple breakfast, and continuing to return to Xianyang with the army, Xiang Kang couldn't wait to draw the appearance of a stone mill in the carriage - the blessing of Qin Shi Huang, the gallop road on the plain was built to be spacious and flat, although he could not draw any precise drawings while sitting in the carriage, but it was not a big problem to draw simple sketches.

Of course, the stone mill is simpler than the plow, Xiang Kang has also seen many times in the farmhouse before crossing, and knows that the grinding teeth must be radial in order to grind uniform flour, and the carriage has just been Huashu, Xiang Kang drew a similar sketch of the stone mill, and smiled with the sketch, and couldn't wait to recall the long-lost steamed buns, flower rolls, fritters, dumplings, wontons, as well as ramen cut noodles, knife cut noodles, pies, pancakes, sesame cakes.

Seeing that Xiang Kang's smile was silly and cheap, Zhang Liang, who was riding a horse and walking beside him, couldn't help but be very curious, and couldn't help but ask Xiang Kang about the reason for the smirk, Xiang Kang didn't hide it, and immediately gave Zhang Liang a detailed introduction to the stone grinding sketch, and also said the main purpose by the way. Zhang Liang was extremely strange when he heard this, and said: "General Right, it's so raw, why do you suddenly want to use this kind of stone mill to grind wheat into powder?" If you just eat wheat rice and porridge, why bother? ”

"Mr. Zifang, when you have eaten the good things made with wheat noodles, you will never go back to eat wheat rice and porridge." Xiang Kang said with a smile: "When the first batch of wheat noodles is grinded out, I will make you a meat bun with my own hands, and keep you so that you want to swallow it even with your tongue." ”

"Is it really that delicious?" Zhang Liang obviously didn't believe it, and after hesitating for a moment, Zhang Liang also said again: "General Right, don't blame the foreign minister for not listening to him, the article of "Han Feizi" is terrifying for the elephant chopstick, you must have read it." Now the world is undecided, and the princes outside the gate are still looking at the Guanzhong, if you only want to enjoy the food, you are only afraid of ....... ”

"Don't worry, Mr. Zifang, I understand what you want to say." Xiang Kang hurriedly interrupted Zhang Liang's preaching and said: "I want to make flour, in fact, it is more for the sake of our army soldiers, using wheat noodles to cook food is not only faster, saving our soldiers' cooking time, but also more hungry and hungry than rice, bean soup and millet These staple foods are more hungry and more hungry, as long as I have a full meal of wheat noodles in the morning, it is not easy to feel hungry in the afternoon, and it is easy to carry and preserve, reducing our logistical burden, so I attach so much importance to this stone mill." ”

Seeing that Xiang Kang was serious, Zhang Liang stopped nagging Xiang Kang to fill in the blockage, just smiled and nodded, indicating that he believed in Xiang Kang, and twisted his body a few times uncomfortably, and said with a wry smile: "It's still not good, it's uncomfortable to ride a horse for a long time, it seems that the minister can't learn riding well in his life, the right general forgives the sin, and the minister has to go back to the car and sit down." ”

Xiang Kang knew that Zhang Liang's health was not good, and he also knew that it was not pleasant to ride directly on horseback, of course Xiang Kang nodded immediately, but at the same time as Zhang Liang left, a question also appeared in Xiang Kang's heart, "Do you want to invent the Takahashi saddle and stirrups?" ”

Leaning on the carriage and thinking about it for a long time, Xiang Kang still dispelled the idea of immediately inventing the Takahashi saddle and stirrups, because Xiang Kang knew very well that if the Takahashi saddle and stirrups were invented, the cavalry combat effectiveness of the self-army would definitely be greatly improved immediately, and the cavalry battle would definitely sweep the princes outside the Guanwai, but once these two harnesses spread to the nomads in the north, they would likely bring disaster to the Han people in the Central Plains!

Qin Shi Huang unification only ten years ago broke out in the whole world anti-Qin uprising, a few years of war poisoned, the Central Plains people have already been a sharp decline in population, the overall national strength is seriously declined, even if Xiang Kang believes that he can finally dominate the world, he does not dare to guarantee how much time he will have to do this, let alone how many casualties the people of the Central Plains will have in the war to unify the world, knowing that if he is greedy for temporary profits, the Takahashi saddle and stirrups that change the mode of cavalry warfare were invented in advance, It spread to the nomadic people represented by the Xiongnu in the north, and the nomads took the opportunity of the weakening of China's national strength to go south, and it was definitely not impossible to stage the tragedy of Wuhu chaos in advance!

So considering this, Xiang Kang could only say silently in his heart: "Let's talk about it later, when I unify the world and restore the national strength, so that the Central Plains cavalry can reach at least one-third of the Hun cavalry, and then invent the saddle and stirrups, I can be sure that I can completely kill the jackals on the grassland once and for all." Or, I can leave this matter to my children and grandchildren, in short, I can't throw watermelons for sesame seeds now, and I can't cheapen those steppe barbarians for nothing. ”

After dispelling this thought, Xiang Kang suddenly remembered what Xiang Yu had said in front of him, and regretted that the horse chopping knife he gave him was not suitable for cavalry warfare, and his cavalry did not have a suitable weapon. Then Xiang Kang only thought about it for a while, and soon drew a saber with a curve and a handguard on the carriage, marked the approximate size of his own estimate, and put it together with the farm tool drawing drawn last night, just waiting to go back and try to cast or build.

In order to fundamentally greatly improve the combat effectiveness of the young marshal army, it is of course not enough to have sabers, hooks and swords, and when he rode westward, Xiang Kang was still racking his brains to recall what advanced weapons could be developed in advance, and then naturally, the gunpowder after the four major inventions naturally jumped out of Xiang Kang's mind.

"Is it necessary to get the gunpowder out in advance? This thing is relatively easy to control, the formula process is easy to keep secret, and even if it leaks, the nomadic cavalry in the north has no raw materials, and it is difficult to imitate it, but what is the use of getting gunpowder out? With the productivity and production technology of this era, can I build a musket cannon? ”

"Wait, it should still be useful, even if I can't make a musket cannon, I put gunpowder in a bottle to make a primitive grenade, which can still get a lot of effect on the battlefield, at least it can scare the enemy half to death, disrupt the enemy's battle formation is definitely effective, and it can also be used as an incendiary bomb." Also, it shouldn't be difficult to get a jet rocket, and it will also surprise the enemy in a battle, and if you accumulate enough technology in advance, it is not impossible for muskets and cannons to appear in advance in a few hundred years. ”

Thinking about this, Xiang Kang wrote the words one nitrate, two sulfur and three charcoal on the silk, and marked that this is only an approximate formula, and the specific ingredient ratio can be adjusted and changed through repeated experiments, and also marked that the hemp lead must be kneaded into nitrate powder.

Then, after roughly drawing a sketch of the fish scale armor on the silk, and drawing an iron helmet with a face protector, Xiang Kang, who had not slept all night last night, leaned on the carriage and fell asleep, still smirking in his sleep, and he didn't know whether he dreamed of the seventy-two concubines of the three palaces and six courtyards, or dreamed of ten or eight peerless beauties without clothes, in short, he slept very sweetly.

The speed of returning to the division lightly was very fast, and it was only in the afternoon of the next day, the main force of the young marshal army was led by Xiang Kang, and returned to the Hongmen camp near Xianyang, Zhou Zeng and Chao Zhi, who had already received the news, also took the Xianyang hundred officials and Hongmen to line up to welcome Xiang Kang's triumphant return, and the people of Guanzhong who spontaneously rushed to greet him were countless, and when Xiang Kang stepped off the carriage, the Xianyang officials and the people of Guanzhong in addition to saluting in an undulating manner, and shouted in unison: "Congratulations to the king on his triumphant return!" Congratulations on your triumphant return! ”

"Uncle Ya, what do you mean by that?" Xiang Kang smiled and asked Zhou Zeng, who came up to greet him: "Before the enthronement ceremony was officially held, why did it start to be called like this?" ”

"General Right, the conscience of heaven and earth, it was really not arranged by the lower officials." Zhou Zeng shouted injustice and said: "They wanted to call it that, and the lower officials didn't make special arrangements." ”

After that, Zhou Zeng said with a smile: "But please forgive the right general, in order to save time, the lower officials have already let people start to build a loess high altar for you on the bank of the Weishui River, and send people to repair the ancestral hall of the Xiang family, so that the right general can ascend the throne and become king at any time." ”

Xiang Kang smiled helplessly and said: "Let's follow the rules, starting tomorrow, I will fast in the military camp for five days, and after five days, I will worship my ancestors first, and then ascend to the altar and claim the king." Is the flag ready? Remember, it's the word 'Chinese'! ”

"Obey the decree of the King of Han!" Zhou Zeng took the command, and then took the lead in bowing to Xiang Kang on both knees, and said loudly: "Long live the King of Han!" ”

"Long live King Han!" The young marshal next to him, Wen Wu knelt on the ground and shouted in unison.

"Long live King Han!" The people on the side of the road knelt down again, and their voices were like landslides and tsunamis, "Long live King Han!" Long live King Han! ”

Surrounded by loud voices, Xiang Kang was colorless, and sighed quietly, and said secretly: "Liu Laosan, don't blame me for robbing your country name, I was also forced to this step." But don't worry, the Han Dynasty I established will only be stronger than yours! ”