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

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

So when Jing Yi really wants to bet on Guan Yu's lack of military rations, the acting plan can be used directly.

The day after Guan Yu killed the first batch of fine works, he instructed Ma Xuan, the logistics officer in the army (Ma Liang and Ma Yan's eldest brother, Guan Yu came to take refuge when he hit Yidu):

"From tomorrow, the newly invented wheelbarrow of the military division will be used to transport grain from the Zhutishan Road. Then allocate a batch of pepper and salt and other supplies that are also in short supply to local civilians to buy rice to replenish military rations.

Let's not collect taxes and loot the people, just trade with the people, and promise the people that when there is a famine in the spring next year, we will definitely transport grain to sell at a low price to make up for their shortfall, so that they can still earn the difference in price, so that it can benefit the people. ”

Guan Yu's absence from the expropriation in Cunma County does not mean that he cannot do business locally to obtain grain. 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 are much lower.

And the most important thing is that Guan Yu did not arrest and torture all the details sent by Jing Yi to spread rumors and encourage the people to resist taxes and flee when he found out about them. He also left a few details that had been exposed but pretended not to know, hoping that they would continue to pass back the news that Guan Yu wanted Jing Yi to know.

Ma Xuan obeyed the order and immediately complied, and soon ordered all the logistics affairs.

It took the messenger a few days to return to Hanyang County, the base of the army, that is, Hanyang County, Zhuti County, and after another seven or eight days, the first batch of military rations, pepper and salt transported by wheelbarrow arrived in Cunqi County.

The emergence of the wheelbarrow really opened the eyes of the local people, because this new transportation equipment was an occasional small invention made by Li Su when he was in Chengdu, in order to optimize the transportation capacity of mountain transportation one day, but there was never a chance to use it, and it was not promoted. Now, as one of the records, it is the first time that Guan Yu has been used in actual combat.

Li Su's unicycle, in fact, looks different from the common unicycles in later generations - the folk daily wheelbarrow, there is no vertical stop under the handle (wheel) of the cart, so it is very laborious to maintain balance when pushing, and it is easy to fall down once it stops.

And the appearance of Li Su's car is more like the dump cart used to load sand, gravel and cement on the construction site in later generations? It's just that it's one less wheel than a dump cart? There are only centered wheels and bodies that cross the wheels on both sides. The most important thing is that Li Su retained the brake lever of the brick moving cart on the construction site.

Don't underestimate such a small optimization? With a brake lever? When you can't push and want to take a break, 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 stop anywhere? And it avoids the problem of traditional unicycles tipping over left and right.

Although the steering performance is not as flexible as the traditional unicycle, it is enough to solve the trouble of "frequent switching between mountains and uphill and downhill" - this is also the experience that Li Su gained after walking through the mountain road plank road, because he found that the most troublesome thing on the mountain road is not to turn left and right? Instead, it switches uphill and downhill.

What is the most dangerous thing about a traditional unicycle? That is, when going uphill, people are in front of the rear car and pushing the wheels forward, once they turn into the downhill slope, they can't pull the downhill inertia of the car and slide down.

And after adding the vertical brake, when you reach the top of the slope and want to turn downhill? First put the car on the flat ground at the top of the slope and turn 180° for half a circle? Instead, the car is in front of the person behind and pulls the wheel. So even if the downhill wheel is too slippery, just press down with both hands? Stick the pendulum into the mud and brake to play the role of a brake lever? I won't fall down the mountain.

When the never-before-seen wheelbarrow grain convoy arrived in Cunqi County? Immediately caused a sensation in the county? The Nanbans, who had never seen the world, came to watch. Especially after Han Jun demonstrated the easy-to-use brake function in public, it caused eye heat.

"This car is good, originally it was carried over the mountain to transport goods, and I was afraid that I would not be able to hold my feet when I went downhill. Now the car walks and feels that it can't be pulled into the ground, the uphill is too steep to push can also unload the hopper to pick a little section, and then push downhill, too labor-saving. ”

The people have been so hotly discussed.

Obviously, they knew how difficult the nearby mountain roads were, so they subconsciously compared the wheelbarrow with other cars, but compared it with the manpower to carry the load.

Anyway, the two cargo hoppers of this car are only 800 Han catties (200 kg), and the uphill is too steep to pass the place where it is occasionally picked up in two batches, but the long downhill can be slid away with effort, and the brakes can be braked anytime and anywhere.

Before Ma Xuan began to sell salt and buy grain, some local landlords, relatively wealthy families, and even barbarian chiefs in Cunqi County began to ask Ma Xuan if they could buy grain trucks.

In the counties of Jianning County, there are some Kunmingyi tribes around each county. The barbarian tribe of a large county may be tens of thousands of households, and in a small county like Cunqi, there are four small tribes, the largest of which is 1,300 barbarians, and three are between 800 and 1,000 households.

Ma Xuan was very embarrassed, first asked Guan Yu for instructions, and then explained to the chief of the largest tribe: "Lord Duosidong, it's not that we don't sell cars, now that the army is on the march, these cars still need to be transported."

After the war, as long as you are attached to General Zhengxi, help you build cars and barter, isn't it easy? General Zhengxi originally came to benefit the people of the south and get rich with the people. Now why don't you buy some pepper and salt, my family Li Dudu knows that your local people are short of salt and light food, and the price will not be too bad for you. ”

When the chieftain known as the Lord of the Doth Cave heard this, he immediately said, "Then if we exchange grain for cars to ensure that you have enough military rations to transport them anymore, can you sell me some cars?"

I'm a rough person, I don't understand the big truth, I heard you Han people say that it is better to teach people to fish than to give people fish. We really can't learn the ability of your Han people to make cars, we can only buy them, you don't have to worry about let's buy a few and learn to build them yourself, although we don't have many people who farm, but there are still a lot of mountain fruits, birds and beasts, you say a number, how to make up the military rations. ”

In the counties of Jianning County, only the Han people mainly cultivate, and the barbarians still mix farming with fishing, hunting and gathering, so the materials they take out will definitely not be all rice, but will be mixed with other coarse grains, fruits, wild vegetables, and wild beasts.

Ma Xuan asked Guan Yu again, Guan Yu agreed in principle, and Ma Xuan calculated the demand and car price according to the consumption of military food. Duosi Cave Lord and several other tribes pooled grain and gave thousands of stone materials, in exchange for two hundred stone pepper salt and dozens of wheelbarrows transporting salt.

With the exemplary precedent of cooperation, the follow-up promotion of salt and grain trade will be smoother.

The local Han people did not want to be exploited by high-priced wheelbarrows, so they chose to buy only salt.

Because the Han people are conceited of their IQ, they think that as long as they look at it and imitate it, they can achieve "localized production", and they will not be exploited by people with "patents".

Who made this era have no intellectual property rights in the first place, and the obvious small innovations in the mechanical structure are so fragrant.

But in any case, even if they only bought salt, Guan Yu still easily bought a small part of the grain stored by the two or three thousand Han farmers in Cunqi County, and also got a lot of barbarian birds, beasts, fruits and wild vegetables, and the harvest far exceeded Jing Yi's expectations - not to mention "light and thin", even if it was "rampant expropriation", Jing Yi's people couldn't get so much grain when they were in charge of Cunqi.

The reason is also very simple, the registered population of the Han nationality in the counties of Jianning County is far less than the population 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, with such a warm, humid and rich climate, only feed more than 100,000 people?

These hundreds of thousands of Han people correspond to nearly 400,000 Kunming Yi who are not in the household register.

There are more than 2,000 Han households in Cunqi County, but there are 4,000 or 5,000 barbarian households combined. Jing Yi usually can't collect the barbarian tax, but Guan Yu quickly replaced the barbarian rations by doing business, how could Jing Yi still consume Guan Yu?

……

Those meticulous works that Guan Yu pretended not to find and put back quickly informed Jing Yi of the bad news, and Jing Yi was also stunned when he heard about it.

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

After figuring out the situation, Jing Yi said to his staff: "There is no way, I have to find a way to gather heavy troops to fight Guan Yu, even if I don't take the initiative to fight with Guan Yu in the county seat, I have to find a way to send a small force over the mountains to sneak attack, and block Guan Yu's roads that use strange new cars to transport salt over the mountains."

Although the Weixian Road is dangerous and difficult to travel, it is not without a detour, but those small roads cannot be opened to vehicles, horses, and grain. We are locals, we are familiar with the terrain, and we don't have to think about the grain route, so let a small group of troops go out for a few days, carry food with us, and intercept and kill a group of convoys and then withdraw, Guan Yu has no way to take us.

When the time comes, we will harass and attrition, and at the same time gather all the troops of each county. Su Yun, you can bring me a handwritten letter and a heavy gift, and immediately go and ask Gao Yi, the king of Yuewang, and Meng Wei, the king of Qin Zang, to send troops to reinforce us. Tell them the latest situation here, let them know about Guan Yu's viciousness, and if I defeat them, I will definitely not let them go!

When the time comes, we will take advantage of Guan Yu's harassment and exhaustion, and be cut off from the back road, and go out of the customs to fight Guan Yu! Anyway, we have thoroughly figured it out, Guan Yu only has 5,000 soldiers and horses. It is too uneconomical for us to consume food compared to 5,000 men, and they eat too slowly. ”

There is also a premise for guarding the pass and consuming food and clearing the wilderness, that is, the enemy has to eat food faster than the speed at which he can get food. If the enemy eats slowly, has a weak force, and can continue to be replenished over time, then it is time to exhaust the enemy and fight a decisive battle!

Changshi Su Yun was still quite uneasy when he heard this: "Mansion Jun! So far, I have no objection to your request for help. But if you think that Guan Yu is weak with only 5,000 people, then I'm afraid something big will happen. Although we are located in southern Xinjiang, we have also heard of Guan Yu's prestige for pacifying the thieves.

In return, he said that many ordinary soldiers in Guan Yu's army wore iron armor. Even if we gather 20,000 soldiers and horses in the whole county, plus the reinforcements of the two barbarian kings, we may not be able to defeat 5,000 people in the field, think twice! ”

"You're just a long history, do you know soldiers? If you want to persuade me in this matter, Cai Duwei should persuade me, you do your duty! "Jing Yi has been very upset and doesn't want to listen to non-professionals discuss the military.

Su Yun sighed, thought about it again, and asked from a different angle: "Even if the whole army is gathered to guard against Guan Yu, and we can really take the initiative to attack Guan Yu, given the time, we will also have to worry about Liu Bei sending a partial division to make a detour and sneak attack from other remote and dangerous places." ”

Jing Yi laughed: "You and I have been in Nanzhong for more than ten years, and Weixian Road is the best way to enter Yunnan, don't you know?" Although there are some rivers and valleys on both sides, there are hundreds of walls and cliffs on both sides, how to walk? Is it possible to trek through dangerous shoals and poisonous waters from thousands of miles away? ”

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PS: Occasionally make three changes in advance...... In this way, after the 27th of the end of the month, there will be three more shifts and 12 days. If you want me to release some of the promised three watches in advance, you can leave a message. Anyway, the total amount remains the same.