What are strategic goods? The four words of coal, salt, iron and rice are enough to summarize in the late Han Dynasty, salt and rice are grain and grass, and coal and iron are the source of all ordnance and equipment. For example, the most used number in charcoal burning is four, the structure of firewood, the gaps left and the way of selecting materials are all related to it, and the general charcoal kiln owners in later generations are called "four uncles" from this.

With the best coal and charcoal casting technology, great progress can be made, and the Golden Wolf Army can also have sharper and tougher ordnance to make it more powerful! Of course, everything is still in its infancy at this time, Liu Yi also has to lead a group of craftsmen to explore in practice, and in half a year, Langsheng has recruited a lot of skilled craftsmen among the captives and displaced people from all over the country, and set up an organization for it, called the Appliance Institute, and the first leader of this Appliance Institute is Xu Yu, the daughter of the master craftsman Xu Gang!

At the beginning, when they learned that they were led by a female streamer, the craftsmen did not dare to say anything about the majesty of the general, but they were more or less reluctant in their hearts, but as time passed, Xu Yu's various skills were gradually revealed, and they slowly changed from disobedience to convincing, from convincing to admiration, the general's wisdom of knowing people is indeed worthy of his name, and Xu Yu is worthy of being the daughter of Master Xu Gang!

The weather in June is already very hot, especially under the scorching sun, in the morning, Liu Yi and Shan Tianji and others came to the field, surrounded by a lot of people from the utensils, Xu Yu is on the side of the general, today is the day when her waterwheel research is successfully officially used, she knows that Liu Yi attaches great importance to this, but she did not expect that he would brave the heat to personally watch the use of the waterwheel. In the past six months, there has been no time when the general is not busy, and it is not easy for Zhao Yun to see his eldest brother.

"General, there will be ten waterwheels for irrigation today, and the water from the river will be channeled into the ditch with the help of horses and oxen later, and once it is successful, there will be twenty waterwheels available, which should ensure the irrigation of the fields." Pointing to the ten large waterwheels lined up by the river, Xu Yu's tone was also excited, but she didn't have too much pride, she knew that in the development of the waterwheel, the general gave her many effective methods, and the general also accounted for half of the credit for the success of the test of new tools.

"Okay, the one on the left doesn't need to be covered, the eighteen big cows are strong, you go up with me." Seeing that his subordinates began to put the cows and horses on the water wheel and prepare to pull the waterwheel, Liu Yi said on a whim, and took off his robe as he spoke, with a look of eagerness on his face.

"General, this ...... Oh, what to see, not yet! Zhang Shibai was a little embarrassed when he heard this, didn't he compare them with cattle and horses? But seeing that Liu Yi was already walking like a waterwheel, he didn't hesitate to follow the words, the generals have gone, what are they afraid of? Isn't it just pulling a waterwheel? Is it harder than fighting?

Seeing Liu Yi's actions, it was not only Zhang Shibai and the others who were surprised, but also secretly surprised by the others, who would have thought that the general would act like this? However, there is a kind of pride that comes with it, and the general's move is undoubtedly the best recognition and commendation for them, and its prestige is really undamaged. Only Xu Yu can understand Xiao Yi's thoughts, and this waterwheel also embodies a lot of his efforts. Including this horse and ox pulling and grinding disc were designed by the general to improve by himself, and it was reasonable for him to try it himself.

The rotation of the grinding disc drove the waterwheel, and the river began to be smoothly introduced into the ditch, I don't know who took the lead, the field was full of joy, and then the general with the three captains pulled the millstone very fast, even faster than those cattle and horses, and the innate divine power can also be seen.

Time flies very fast in the busy, now standing on the north wall of the county, Liu Yi looked at a large area of golden wheat waves in front of him with the wind and his heart is very accomplished, how this year's harvest has a great impact on his next plan, if he can get a bumper harvest within two years, he will not worry about the grain and grass, the next step of the development of the wasteland has been gradual. Having food in your hands and not panicking in your heart is of special significance to those who aspire to the world, and these two years will be particularly critical.

"Liu Sinong, how is this year's harvest looking at the present?" Turning his head, Liu Yi asked Liu Li behind him, he knew a lot about agronomy in his later life, but because the times were too far apart, there were very few people who could use it at this time. However, it is gratifying that Yanjun Sinong Liu Li gave him a great surprise, not only rich experience but also the spirit of innovation and hard research, when it comes to farming, Ding Si may not be bad, but the decisive difference between the two is in the knowledge and vision they have.

"Ding Sitian, you have the most in the field, explain it to the county guard." Listening to Liu Yi's question, Liu Li was secretly funny in his heart, and the county guard didn't know how many times he had asked himself in the past few days, and now he smiled and made Ding Si speak, and now this Liu family farmer is already the Si Tian of the Si Nong Department, a serious Han official! Liu Li was very glad that he could meet Liu Yi, a boss who trusted him and let him go, since the county guard could trust him so much, he should also treat his subordinates with the same attitude.

"Master, I've been staring at the field, this year's weather is good, the farmland in my county is well irrigated, the fertilizer is good, the master's family is even better at intensive farming, and the villain doesn't dare to say anything else, and when it comes to the harvest, he will never be under the experimental field of the party." Ding Si bowed to Liu Yi and then said, being able to be the boss Tian is something he never dreamed of, all of this is given by the master's family, what will he do? That is, farming, it is even more necessary to repay the grace of the Lord's family desperately, even if he is tired to death, he is willing.

"The county guard, Ding Sitian has been staring at the fields every day for a while, no one knows these crops better than him, and the old man is also the same as Si Tian, and it is the beauty of God to be able to have the right thing in front of him, and it is also the virtue of the county guard's outline." Listening to Ding Siyi say three good words in a row, Liu Li is also a good person, and immediately said to Liu Yi, this is not flattery, with his understanding of the county guard, he also does not like the flattery of his subordinates, and the utensils, many times Liu Yi's words will give them a lot of inspiration, and sometimes it is extremely critical.

"Hey~ I want to see that this is first of all Liu Sinong Ding Sitian and everyone's work, and then it is the beauty of God, and now I see that the harvest is about to bother you to work harder, not only this is the county, but the rest of the counties must be inspected in detail, and there can be no accidents." Liu Yi waved his hand and praised it sincerely, Liu Li, Ding Si and the efforts of the officials of the Si Agricultural Department he saw in his eyes, and he was very fortunate to have such subordinates, although there is no major progress in science and technology for the time being, but the four words of intensive cultivation can be implemented solidly, which is enough at present, and with the current research spirit of everyone, he is also looking forward to the future development of agronomy.

"Rest assured, we will do our best, with the horses supported by General Zhao Yun, Si Tian from all over the country can also report the details as soon as possible." For more than half a year, Liu Li and others have become accustomed to Liu Yi's style of doing things, as long as they can do things well, the county guard never cares about the conditions of his subordinates, for example, Liu Li said last time that the farmland situation should be reported quickly, and the county guard asked General Zhao Yun to send enough fast horses.

"Hahaha, okay, with everyone in Yi Yi worry-free, this matter will be handed over to Sinong, and it will be reported in three days." Liu Yi smiled happily when he heard this, and then added, the closer he was to the harvest, he was too nervous, and chased Liu Sinong every day to ask, it is not good to put too much pressure on his subordinates, and after saying this, he took Zhang Shibai and others out of the city, and outside the farmland was the Dingbian Army station, which was training at this time.

Today's chief officer in the battalion is the cavalry captain Zhao Yun, Gan Ning has been inspecting various counties during this time, Lin Jun, Qi Jun, Pu Yangfeng and others led the infantry to carry out a long-distance marching drill, seeing the arrival of the general, Zilong signaled the training to continue, and he hit his horse to meet him.

"Zhao Yun, the captain of the Golden Wolf Army Cavalry Academy, has seen the general, and he is conducting a combat drill today, please show the general." Liu Yi has always been called a general in the army, even if he is wearing an official uniform, he has nothing to say about the boss of the eldest brother and the days in the Golden Wolf Army, and now he is already a military captain, and he is only under Puyang Feng in the cavalry, but if you want to be promoted again, you need to have solid combat achievements.

"Hehe, I'm just here to see today, the third brother is self-disciplined." Liu Yi said with a smile, the full development of Yan County naturally includes the construction of the army, for this reason, he and Gan Ning, Zhao Yun, Qi Jun and others spent a lot of effort on drills, and also set up a lot of effective project rules for it.

"No!" Zhao Yun heard the promise and gave another salute and beat the horse back, how could he not know the style of the eldest brother, he has always pursued reality and never needed too much red tape.

The general's arrival made the non-commissioned officers in training more energetic and harder, and the training was carried out as usual, and the general said that the training was the same as in wartime, but if there is a mistake, it will be punished according to the wartime violation of military law! The general has always been like a mountain, and he leads by example, and military law is great in the Golden Wolf Army.

I watched a team of soldiers wearing white cloth wrapped around their arms rush to the training ground as fast as they could, and then methodically carried the wounded soldiers off one by one on stretchers, and the military doctor followed them forward to check. Liu Yi bowed slightly, and those soldiers with white cloth wrapped in their arms were the medical team they had set up, which was a new formation, designed to rescue wounded soldiers on top of the battle array. Not only do they have to know how to care and be able to deal with all kinds of external injuries, but they also have to undergo rigorous military training with the soldiers! Without a strong physique and professional skills, they will not be able to rescue their comrades on the battlefield, as for the female medical soldier Liu Yi, it is difficult to find many suitable women for this for the time being, but the introduction of female soldiers in the future is afraid that it will become inevitable.

After a whole afternoon of training, Liu Yi stood on the sidelines and watched with relish, Gan Ning, Zhao Yun, Pei Yuanshao and others are all subordinates with super execution, and the drill specifications they discussed have been actually implemented in daily training, which will make the already powerful Golden Wolf Army even more powerful! Of course, the specific effect can only be practiced through actual combat.

Maybe God also heard what Liu Yi was thinking, three days later, a letter from Liu Yu, the assassin of Youzhou, arrived in Liu Yi's hands, the letter said that Yuyang Zhang Ju Zhang Chun committed rebellion, pure self-proclaimed Son of Heaven, called the general, at this time Gongsun Zhan was fighting against the Northern Xiongnu, Liu Yu was the first to think of Liu Yi.