Fortunately, Guan Yu's purpose of attacking Jianning by land this time was to lure the enemy and stick the enemy's main force here.

So before sending troops, Guan Yu discussed with Li Su the acting issue of "how to pretend that he can attack the Aoyao Mountain Pass for a long time, and how to pretend that he must have sufficient military rations and will not withdraw his troops."

So when Jing Yi really wants to bet that Guan Yu is short of military rations, the acting plan can be used directly.

The day after Guan Yu killed the first batch of detailed works, he ordered the army's logistics officer Ma Xuan (Ma Liang and Ma Su's elder brother, Guan Yu came to surrender when he fought against Yidu):

"From tomorrow, we will use the newly invented wheelbarrow of military advisors to transport grain from Zhutishan Road to here. Then we will allocate a batch of pepper and salt and other materials that are also scarce in local civilians to buy rice to enrich military rations.

We don’t collect taxes and plunder the people, we just trade with them, and we promise to the people that when the famine is famine next year, we will definitely transport grain to sell at a fair price, make up for their shortage, so that they can still make a difference in profit and benefit the people."

Guan Yu's absence from Guan Yu County does not impose a heavy tax on levy, which does not mean that he cannot do business locally to get food. The transportation capacity of transporting one stone of pepper and salt can be exchanged for dozens of stones of grain and rice locally, so the transportation capacity requirements will be much lower.

And the most important thing is that when Guan Yu seized the detailed works sent by Jing Yi to spread rumors and encourage the people to resist taxes and escape, he did not arrest all the detailed works and torture and execute them. He also left a few detailed works that had been exposed but pretended not to know, hoping that they would continue to pass back the news that Guan Yu hoped Jing Yi knew.

After obeying the order, Ma Xuan immediately followed suit and quickly ordered all logistics affairs.

The messenger spent a few days back to the base of troops, that is, Hanyang County, Zhuti County. After another seven or eight days, the first batch of military rations and peppers transported by wheelbarrow were transported to the town of Cunju County.

The emergence of wheelbarrows has really opened the eyes of the local people, because this new transportation device was an occasional invention made by Li Su when he was in Chengdu, in order to one day optimize the transportation capacity of mountain transportation, but there was no chance of use, so there was no promotion. Now, it is one of the filings and it was used for the first time by Guan Yu to use it in actual combat.

The wheelbarrow of Li Su is actually different from the common wheelbarrows in later generations - a folk daily wheelbarrow, there is no vertical barrier under the handle (shaft) of the cart, so it is very difficult to maintain balance when pushed, and it is easy to fall once it stops.

The car Li Su looks more like a dump truck used by migrant workers to load sand, stone, cement on construction sites in later generations? It is just one wheel less than the dump truck? There is only a single wheel in the center and a truck with wheels on both sides. The most important thing is that Li Su retains the brake gear lever of the brick truck on the construction site.

Don’t underestimate such a small optimization? With the brake lever? When you can’t push and want to rest, you can stop anytime and anywhere? Two poles stand on the ground, and the car is a stable three-point support for the ground? Can you park anywhere? It also avoids the problem of traditional wheelbarrows falling over left and right.

Although the steering performance is not as flexible as that of traditional wheelbarrows, it is enough to solve the problem of "frequent switching up and downhills in mountains" - this is also the experience that Li Su got after walking the mountain road by himself, because he found that the most troublesome thing about cars that are driven slowly on mountain roads is not the left and right turns? It is the up and downhill switching.

With the model precedent for cooperation, the subsequent promotion of salt and grain trade has been smoother.

Local Han people were unwilling to be exploited by high-priced wheelbarrows, so they chose to buy only salt.

Because Han people are self-conceived their IQ and think that as long as they imitate the appearance, they can achieve "localized production" and there is no need to be exploited by people with "patents".

Who made this era have no intellectual property rights? The obvious small innovations in mechanical structure are so delicious.

But no matter what, even if they only bought salt, Guan Yu could easily buy a small portion of the stored grains from two or three thousand Han farmers in Guanzi County, and also obtained many wild vegetables from the Manchu tribe, and the harvest far exceeded Jing Yi's expectations. Not to mention "light taxes and taxes", even if it was "exhausted and intensive taxes", Jing Yi's people could not get so much food when they were in charge of the stored grains.

The reason is also very simple. The registered population of Han nationality in each county in Jianning County is far less than that of the barbarian tribes.

Jianning County is known as more than 30,000 households and more than 100,000 Han people. But in fact, how can the Kunming Basin, which has a warm, humid and rich climate, only more than 100,000 people be supported?

These more than 100,000 Han people correspond to nearly 400,000 Kunming Yi, who are not in the household registration book.

There are more than 2,000 Han households in Guanzuo County, but there are four or five thousand barbarians in total. Jing Yi cannot receive taxes on barbarians, but Guan Yu quickly replaced all the barbarian food through business. How could Jing Yi waste Guan Yu death?

...

Those detailed works that Guan Yu pretended not to find out were quickly informed Jing Yi of the bad news, and Jing Yi was stunned when he heard about it.

Can you still do business with the barbarians like this? Are Liu Bei's people so rich?

After figuring out the situation, Jing Yi expressed to his staff: "There is no choice but to find a way to gather heavy troops to fight Guan Yu. Even if he doesn't take the initiative to fight with Guan Yu in the county town, he still needs to find a way to send a small group of troops to attack over mountains and sneak attacks, blocking Guan Yu's roads that use strange new cars to cross mountains and transport salt.

Although Weixian Road is dangerous and difficult to walk, it is not without a detour, but those small roads cannot be opened to traffic and horses to transport grain. We are locals, familiar with the terrain, and do not have to consider the grain road. We let small troops go out for several days, carry food with us, intercepted a group of convoys and withdrew. Guan Yu had no choice but to do anything to us.

At that time, we will harass and consume all the troops in each county. Su Yun, please take me to write and give me a handwritten gift and immediately invite King Gao Yi of Yueli and King Zang of Qin Mengchang to send troops to reinforce us. Tell them the latest situation here and let them know that Guan Yu is vicious and vicious. If it is defeated, I will never let them go!

At that time, we will take advantage of Guan Yu being harassed and being exhausted, and we will be cut off from the road to go out to fight Guan Yu! Anyway, we have completely figured out that Guan Yu only has five thousand soldiers. It is not cost-effective to consume food compared to five thousand people, and they eat too slowly."

There is also a prerequisite for defending the pass and consuming grain, and strengthening the walls and clearing the fields, that is, the enemy must eat food at a faster rate than the speed of getting food. If the enemy eats very slowly and has weak troops, they can still get supplies over time. At this time, you should exhaust the enemy and then fight to the decisive battle!

Chief Su Yun was still quite uneasy when he heard this: "Mr. The matter has come to this point, I don't object to your request for help. But if you think that Guan Yu is weak with only 5,000 people, then something big will happen. Although we have opened up southern borders, we have also heard of Guan Yu's reputation for pacifying the thieves.

In detail, he said that many ordinary soldiers of Guan Yu's army were wearing iron armor. Even if we gathered 20,000 troops in the county and reinforcements from the two barbarian kings, we might not be able to fight more than 5,000 people in the field. Think twice!”

"You are just the chief minister. Do you know the military? If you want to persuade me, please do your duty!" Jing Yi was so unhappy that he did not want to listen to non-professional people discussing military affairs.

Su Yun sighed, thought about it again, and asked from a different angle: "Even if the entire army is gathered to guard against Guan Yu, he can really take the initiative to attack Guan Yu. In time, we have to worry that Liu Bei will be in trouble to attack by taking a detour in other remote and dangerous places."

Jing Yi laughed: "You and I have been in Nanzhong for more than ten years. Weixian Road is the best way to enter Yunnan. Don't you know? Although there are some rivers and valleys in the rest, the two sides of the shore are all 100 feet tall and the cliffs are steep. How to get there? Are you trekking through dangerous shoals and poisonous water from thousands of miles away?"

——
Chapter completed!