Three days later, all kinds of grain were planted in the entire city of Jingzhou.

However, at this time, Cao Cao received a battle report from the north.

Ma Teng of Xiliang moved.

Originally, Xiliang Ma Teng and Cao Cao have always been well water and do not interfere with river water.

However, somehow, Ma Teng received the news of Cao Cao's disappearance, so he gathered forces with Han Sui, intending to take Xuchang directly.

even said that he would save the Son of Heaven.

Cao Cao quietly looked at the battle report, his face was extremely ugly:

"A puppet, dare to let out such wild words?"

Seeing this, Cao Chun immediately burst into applause:

"These Xiliang horses, I'm afraid they have forgotten that my tiger and leopard ride the majestic wind!"

"Prime Minister, the last general is willing to lead the tiger and leopard to ride there, and Ma Teng will definitely be killed!"

"It's not proper, Zi and General, the tiger and leopard can't ride five thousand horses, if they all go, what should this Ulin do?"

"Besides, this horse has been planning for a long time, I'm afraid the number of Xiliang Iron Riders is far beyond our imagination!"

Cheng Yu on the side heard this, and hurriedly said.

Cao Chun gritted his teeth:

"Then you can't watch them march into Xuchang, right?"

Cheng Yu hurriedly said:

"Prime Minister, the minister asked the immortals when he was on the fairy island, and the immortals once mentioned the three-piece cavalry suit, which was scrutinized by the minister, and it was better than the existing tiger and leopard riding equipment!"

"The minister has ordered to build, and in a few days we will be able to build a cavalry unit comparable to the tiger and leopard cavalry, and it will not be too late to attack at that time."

Cao Chun suddenly frowned and said:

"How is this possible?"

"I've seen this method, and all it needs is steel!"

"How easy is it to forge steel? According to the equipment of the tiger and leopard ride, if you wait for the assembly of tens of thousands of riders, I am afraid that Ma Teng's iron horse has already broken through Xuchang! ”

Cao Chun was not wrong at all.

When the Haw Par Cavalry was formed, all the armor and cavalry three-piece suits of the Haw Par Cavalry were made of steel.

Not only did these steels cost a lot of money, but they also took a long time.

The equipment of the 5,000 tigers and leopards consumed 100,000 catties of steel, which took more than a year.

At this rate,

Cheng Yu raised his hand, squinted his eyes and said:

"Who said steel is so slow?"

"The old man can ask a way, but he can produce 10,000 catties per day!"

Hearing this, everyone was directly dumbfounded.

"Zhongde, are you crazy?"

Xun Yu's eyes widened even more, and he couldn't believe what Cheng Yu said.

10,000 catties per day?

With the frying steel method, it can only produce about 200 catties a day, which is quite a lot.

This is still built by countless craftsmen, where are there so many craftsmen today?

In today's situation, it would be good to be able to produce a hundred catties a day.

Not to mention that it will be increased by 50 times on the highest basis to reach 10,000 catties!

It's a fantasy.

Cheng Yu looked at everyone's expressions and couldn't help but sneer.

At that time, when Lin Chuan said that he could produce 10,000 catties per day, Cheng Yu was also very confused.

But Lin Chuan gave a new approach.

Steel-filled method!

During the Three Kingdoms period, there was already a method of frying steel, and the output of steel was greatly increased compared with before, but it was still far from enough.

Although the steel is good, it is too difficult to make and takes a long time.

After all, iron has to go through 100 refining before it can become steel!

The steel-filling method appeared during the Northern and Southern Dynasties, and the output of steel increased significantly.

"Cheng Yu, don't you boast about Haikou so much."

Xun Yu said coldly:

"Don't say that it is a daily output of 10,000 catties, even if it is a daily output of 1,000 catties of steel, it is impossible!"

Cheng Yu didn't bother to pay attention to him, and said directly:

"Prime Minister, it's just that this method still needs the help of the immortals, according to the immortals, to use this new steel filling method, you need a steelmaking furnace."

"This stove, I still need to go to Xiandao to take a trip."

Cao Cao narrowed his eyes and nodded:

"Yes!"

Cao Cao trusted Lin Chuan very much, although he didn't know it at this time, he still chose to believe in Lin Chuan's ability.

After all, Lin Chuan's seeds can multiply grain production several times, and it is not difficult to have a new way to make steel.

Although Ma Teng is now gathering troops, it is inevitable that he will not be able to attack Xuchang directly.

In the counties around Xuchang, there are still armies.

What's more, now that the grain has been distributed, with the food, the city can be defended.

Now the worry is not about Ma Teng's attack, but how to destroy Ma Teng.

Jiangdong and Liu Bei, across the river from themselves, will not work at all with cavalry.

But in the north it is still possible.

Cao's cavalry is almost invincible in the world.

In particular, the tiger and leopard cavalry is a special force in the Three Kingdoms, and there is no problem with one enemy and ten, and the tiger cavalry is the earliest heavy cavalry in history.

If the problem of the speed of steelmaking can be solved, it will be like a tiger with wings.

What Cao Cao wanted was not just to stabilize one side and settle in one corner, but to annex all the princes.

What needs to be done before that is to increase the strength of the military.

The acquisition of this steelmaking method is imminent.

After all, steel can be made not only of a cavalry three-piece suit, but also weapons and equipment, and armor.

Steel is several times tougher than iron, and on the battlefield, weapons made of steel can be said to be completely crushed by iron.

Cheng Yu got permission and hurriedly took Xu Chu and the others to prepare to go to Linchuan's island together.

Of course, this time you can't go empty-handed.

Although Lin Chuan has a lot of resources on the island, things like quilts and clothes are relatively scarce.

After all, Lin Chuan didn't know how to make clothes and didn't grow cotton.

Fortunately, the island is cooler all year round, and a quilt made of wool is fine.

After the two of them were reorganized, Cao Cao decided to take a hundred guards with them.

This time I returned to Wulin just to stabilize the morale of the army and block the idea that the Sun-Liu coalition army wanted to annex Wulin.

The most important thing is to popularize food.

Now Jingzhou has begun to grow immortal food.

It's not that Cao Cao is floating, but the output of an entire state and county in Jingzhou is enough to feed the entire north.

After all, during the Three Kingdoms period, the population was extremely small, and it was easy to produce 10,000 catties of grain per mu, and it was not a problem for one state and county to feed the entire land of Kyushu.

In addition, Cao Cao still wanted to have a long talk with Lin Chuan and talk about the situation today.

After all, Lin Chuan can understand the past and the present and predict the future.

Now that there are many surrounding princes, Cao Cao didn't know where to start cleaning up for a while.

It's better to ask Lin Chuan and avoid detours.

Of course, there is another reason, that is, Lao Cao misses his daughter.

Of course, Cao Cao's trip was hidden from most people, and only Jia Xu and Xun You knew about it.

With two people here, at least they can ensure that things are done in an orderly manner.

With countless supplies, everyone set off towards Lin Chuan's immortal island.

This time, there are few people, and the fastest boat is chosen, and it is expected to arrive in about two days.

This time, Cao Cao had a hunch.

When he came back this time, these princes would not have a good life.

Once the steelmaking furnace is obtained, the method of forging steel that Shi Cheng Yu said, the iron horse of Dawei will be invincible!