After all, it will be a matter of a few years later. Liu Bei could not understand all the rules and regulations with Li Su now. What is needed is adaptability.

What should be done now should continue to "consolidate the foundation" and farm in the base area well, and be ready to go.

Guan Yu was aside. After listening to Liu Bei and Li Su's plan, he saw that there was nothing else, so he took the opportunity to ask Liu Bei for instructions: "Brother, since the arrangements for the jade seal and the snake-killing sword have been explained clearly, what should I do to see when will I return to Nanzheng?"

It was obvious that Guan Yu had left for more than half a year and did not know much about all the changes in Shu.

Liu Bei looked at Li Su first, then smiled at Guan Yu and said, "No hurry. My second brother has been out for a long time and has never enjoyed the prosperity of Chengdu. Live for a while. Nan Zheng Wen has Zijing, Wu has Gongming, and Xiaozhi is stationed in Sanguan. Regular government affairs are foolproof. Chief Yun can train troops in Shu to recuperate."

Guan Yu said anxiously: "Brother! The world is so chaotic. It is not a time for our martial artists to enjoy it. Moreover, the position of the prefect of Hanzhong is ordered by the late emperor. I dare not leave the post for a long time."

Li Su advised from the side: "Chen Yun doesn't know anything. This strategy is what the lord and I have discussed and decided to let you stay in Shu. It is not a waste of time, but to ask you to refine your new army and expand your army to prepare for war in the past two years. This matter should not be implemented in Hanzhong."

Guan Yu didn't think about it for a moment: "Why? Since we are going to fight against Dong in the future, shouldn't we train troops and talk about martial arts near the front line?"

Li Su waved his fan and said, "The situation in Shu is different from that in other places. The loss of grain transport is too great. Chengdu's plains are rich in materials and has been known as the country of Tianfu since ancient times. However, when transporting Chengdu's grain to Hanzhong, at least four or three were used to transport Chengdu's grain to Hanzhong, we have been slightly rectifying the Jialing River shipping, and only reduced the loss to three or two. It will take several years to further reduce the loss.

In this case, our army should raise less full-time soldiers who only eat but not produce in peacetime in Hanzhong. We should try our best to store the local grain produced in the Hanzhong Basin until the Northern Expedition. As long as we leave a part of the army to station the people and provide for the Fa Xiaozhi, Xu Gongming defended the San Pass and Baoxi Road to a small number of standing troops.

Moreover, because the road to the Northern Expedition is long and difficult to transport food, we must take the route of elite soldiers. If the training cost of an elite soldier is three times that of a inferior soldier, but its combat power is twice that of a inferior soldier? Then we should also use more elite soldiers. Because when the Northern Expedition, an elite soldier only needs to eat one portion of military ration? Although the combat power of two inferior soldiers is the same as that of an elite soldier, the logistics pressure is twice as high as that of an elite soldier."

Guan Yu had never thought about this problem. When he left, Jiangzhou had just taken it down. After Li Su said this, he suddenly realized it.

Transportation is difficult? Then don’t transport everything to the front line? Instead, change time and space, and change wartime in peacetime.

Li Su has a typical "futures arbitrage" thinking, but there is no concept of futures these days.

But let alone, Zhuge Liang's Northern Expedition in history also thought so. Zhuge Liang was a top-notch internal affairs talent during the Three Kingdoms period? Would he not understand the logistical time-changing space arbitrage?

First, we went to the south to fight Meng Huo and pacify Nanzhong. We trained soldiers for the mountain war of the Shu army, and recruited the barbarians from Nanzhong and Brazil to form elite Wudang Feijun. This is all about training elite troops in normal times. Moreover, Pingnanzhong ate grain produced in the Chengdu Plain, and we would never use a grain from the Hanzhong Basin to allow Hanzhong to farm all year round. We saved all of them until the moment of the final Northern Expedition.

When Li Su first came to Shu County, he had not figured out this truth. But after taking charge of the internal affairs for several months and seeing so many things, he also recalled it. Of course, he had to bring the routines that Zhuge Liang had used for use.

Of course, he still let other staff members do the specific matters.

Guan Yu followed the situation and asked: "Since that's the case, I dare not obey. Brother? I wonder how many soldiers and horses I have to refine in the past few years?"

Liu Bei thought for a while: "Around Chengdu, the people are not strong, and it is difficult to have a source of brave soldiers even if they expand their troops. Therefore, most Han soldiers should be drawn from Jianwei and Ba County, especially from the locals who were once recruited as soldiers in Liu Yan. When we entered Sichuan, we had nearly 30,000 soldiers and horses. After three years of loss, the remaining veterans were only 20,000. We expanded 30,000 local Han soldiers in Yizhou to gather 50,000.

In addition, the brave Yongliang under Liu Yan's command, who are from Dongzhou soldiers and Qingqiang soldiers, have 10,000 or 20,000 to re-subscribe and train. In addition, 30,000 people will be collected from Banyan and the future Nanzhong Barbarians. In this way, a total of 100,000 elite soldiers of the Han barbarians must reach the level of elite troops of one and three, and only then can they have a greater chance of winning if the 200,000 Xiliang troops who actively crossed the mountains to attack Dong Zhe. Also, recently, it was discovered that Gao Shun is quite good at using troops, and he will not have to fight in the past two years. Let him accompany you to train troops."

After Liu Bei finished speaking, Li Su followed: "The training camp does not have to be in Chengdu. First, Chengdu is prosperous and prosperous, which can easily distract the soldiers. Second, the source of soldiers is mostly from Bajun and Nanzhong, so it is better to get close to the training camp.

Before, I discussed with my lord that it would be best to choose one or two places to train troops in Jiangyang. First, the Minjiang River and other places are located at the Minjiang River, the entrance of the Yangtze River, and the Chengdu Plain Products. Food and grass can be transported along the Minjiang River, and the transportation cost is the most cost-effective. Secondly, Nanzhong Products and barbarians can also be transported along the river to the Wujiang Road, and there is no going upstream throughout the journey.

As for the benefits of Jiangyang, although it is located in the lower reaches of the Banyan Man settlement area of ​​Ba County, the resources from Jiangzhou have lower losses in the transportation of military sources. In addition, along the Luoshui River in Jiangyang, Jiangyang and Han'an in the upper reaches are both well salt production areas, and it is more convenient to store pickled military supplies. In the future, Dongzhou soldiers and Banyan Man can be placed in Jiangyang for training, and local Han soldiers and Nanzhong soldiers are placed in the Banyan Man practice."

Guan Yu stroked his beard and thought, thinking that the 100,000 elite Han barbarians had basically consumed most of the remaining financial resources in the Chengdu Plain and could not expand the scale.

Liu Bei finally made the decision: "Then Chief Yun will rest in Chengdu for more than a month, walk around, screen the source of Dongzhou troops left by Liu Yan, and select the ones to train. Then, when the autumn is in autumn, he will take them to the road of Jiangyang and Boya to the autumn harvest, and then go to pacify Nanzhong. It is best to be able to practice in battle. Pull the new recruits out to see the blood."

Guan Yu received the order and the informal dinner was over.

...

Guan Yu went back to rest for a night, and the next day he was invited to go to Li Su's fiefdom to see, open his eyes and see what farming achievements had been piloted on his fiefdom in the first year after Li Su entered Sichuan, and what things were produced that were helpful to elite soldiers and strengthening the army.

Guan Yu was still on holiday anyway, so he was so happy to get familiar with the situation, so he took a few followers and rode his horse.

Leaving Chengdu, he went up the Minjiang River for 20 or 30 miles and arrived at the Li Su fief of Pi County. Walking in the fields, he saw from a distance that there were many water conservancy facilities on the Minjiang River and other tributaries divided by Dujiangyan. Li Su's aide, Zhuge Jin, who was also the county magistrate, was personally supervising the construction and construction of water conservancy.

People in the Han Dynasty did not have intensive farming and did not have crops two seasons a year, so in summer, it was relatively slack, with only spring plowing and autumn harvesting the busiest.

In the dynasty of double-season rice, harvesting and planting in summer was a rush, and "double-snatching" could be exhausting. Now, as long as weeding and irrigation in summer, you can get a little corvee after you have time.

When Guan Yu saw Zhuge Jin, he greeted him kindly: "Ziyu, I heard that you are the county magistrate, why do you have to take care of these small things yourself?"

Zhuge Jin rolled up his short sleeves, muddy and said with a smile: "Bingji was worried that the ox was panting without asking about the death of people across the road. If he did big things, he had to take the pilot project. Although he had only piloted hundreds of thousands of acres around the fief of the Hou Mansion this year, he could promote it to the whole county and county. Of course, he had to calculate the accounts in detail and consider the profit and loss.

This will make it easier to calculate the project, such as water trucks, mills, and forging, and it will take several years to recover the capital of investment. If it takes five, eight or even ten years to see the interests, it will hinder the preparations for the Northern Expedition of the General of the Western Expedition, then you will not be in a hurry to invest."

Guan Yu nodded and smiled: "You are a capable official."

When Zhuge Jin saw Guan Yu curious about everything he saw, he introduced it to him one by one. He first pointed to the new water truck by the canal, which is also the most common and most commonly used equipment in the fields of Li Su’s fiefdom, and said:

"This thing is called Fanche. In fact, the National Commander who was responsible for the military farming service had a trial production in Jiameng last year, but it was not perfect. It was only after Boya personally supervised and improved it. Mrs. Li was also writing a new book for these things. The title of the book is called "The Great Works of Heavenly Works". It is necessary to make up for the shortcomings of the "Agricultural Techniques" written in the previous two years, and specifically search and record the techniques of recording craftsmanship and equipment."

Guan Yu looked at these new water trucks called overturning. Compared with traditional water trucks, the biggest feature is that they are made into crawler-type, which can add or reduce the water barrier, which can increase or reduce the impact force of the water flow and the water draw efficiency.

The wheels at both ends of the "water barrier track" are made into four wooden meter-shaped rudders, similar to the rudder, so that when each gutter passes through the "rudder wheel", they can be stuck in the eight gaps in the meter-shaped rudder, achieving a "red chain transmission structure" similar to the bicycle wheel axle and chain.

The energy loss of this kind of transmission is definitely very high. Corresponding to the low transmission efficiency, the transmission will lose energy every time the meter wheel and the water barrier cope. Fortunately, there is Dujiangyan upstream, and the water energy downstream is very stable. Hydropower is an inexhaustible energy. No matter how large the loss ratio is, it is much better than manpower.

Thanks to the fact that Li Su's fiefdom is downstream of Dujiangyan, it is difficult to replicate this industrial model if there were no water conservancy facilities during the Han Dynasty.

Guan Yu also saw that this kind of overturning is stronger than a traditional water truck, but he could not see its specific and wonderful function for the time being, so he directly asked: "Is this thing affected more hydraulic impulse?"

Zhuge Jin smiled and said, "This can still be adjusted. When you need to draw more water, add a few more sections in the middle. When you draw less water, remove a few sections. The old-style water truck will be dead and cannot be adjusted. In this way, water less when the rain is abundant, water more when there is insufficient rain. As long as you dig more ditches and install one for each channel, the people here will hardly use manpower to irrigate them.

Moreover, these new water trucks are not just about irrigating the farmland General Guan. If you have a good time, follow me upstream to see. At the outlet of Dujiangyan, where the water flow is the most turbulent, there are much larger water trucks there.

Some of them are used to grind rice and wheat. As long as the amount of water barrier is increased or decreased, the thickness of the milled rice and the amount of bran left. There is no need to charge money for helping the people grind rice. All the rice and flour milled belongs to the people, and 20% of the bran rice bran is used as the wages for using the mill.

The poorest self-cultivated farmers may not be willing to give up, but the large farmers who lack labor in the fields are still willing to work in hydraulic mills. In the future, as long as they make new business for poor farmers during the slack season, such as giving them wages to make military supplies and expanding brocades, they will earn more and more rice brans than they get by hand-made rice. I believe that more and more people will go to the official mill to grind rice."

Guan Yu was overwhelmed by the sight, and couldn't figure out why so many ingenious new things appeared on Li Su's fiefdom for only eight months.

Zhuge Jin looked at it and was honored. Before he could finish it, he pointed to the largest water truck workshops under Dujiangyan: "Rice milling is quite useless. Brother Boya just figured out how to use the water truck to make efforts and control the forging hammer to forge large pieces of iron armor. Do you want to go and take a look?"

Guan Yu was shocked. He just said that water trucks could crush rice and irrigate, but in fact it had nothing to do with him. But when he talked about the fact that he could forge iron armor in large quantities without blacksmithing, he suddenly became energetic.
Chapter completed!