At this time, in Xuchang.

Bai Feng leisurely watered the crops in the farmland.

The crops are growing very well during this period.

Although this mansion has been abandoned for a long time, the land is indeed the most fertile in Xuchang.

During this period, Cao Jie often came to Bai Feng to help Bai Feng water together.

After all, Bai Feng has now sent Yanyun Eighteen Cavaliers and Li Cunxiao and Li Yuanba Qin Liangyu to attack Bashu with Deng Ai.

Bai Feng can only do the farm work on this farmland by himself.

But after all, there are only five acres of land, and these crops only need to be watered, and there are no special requirements.

Deworming or something is not necessary at all.

The seeds given by these systems will not grow worms at all.

After pouring the water, Bai Feng had nothing to do in his spare time, so he opened the system store to see what else could be used.

I have to say that the current system mall is much better than before.

After the improvement, it is estimated that the system also understands that the previous path is wrong, so it directly eliminates all the things that have strengthened its own strength.

The rest are things that can be used as ministers.

This includes many things that will only appear in modern times or later generations.

Not only food, but even fire blunder drawings.

It's just that now let alone Cao Cao, even if Bai Feng did it himself, he wouldn't be able to make a firecracker.

Thermal weapons can't be made if you want to make them. They require a very large industrial system to cooperate.

At the very least, there should be steel and parts that can be produced so that the firecrackers can be made.

Otherwise, how can these things be made out of nothing?

Bai Feng looked around and locked a very good thing.

How to use black powder!

This is the way that can be used now, and is the only thermal weapon that can be used.

Black powder can actually be made since the Three Kingdoms period.

It's just that now is the era of cold weapons, and everyone doesn't have the mindset of hot weapons at all.

Everyone's thinking is still stuck on either hand-to-hand combat or shooting with arrows.

At most, there will be some construction machinery and catapults.

In fact, the catapult is similar to the cannon of later generations, but it is far less powerful than the cannon.

But even so, using this siege is extremely effective.

If black powder can be used to make something similar to a grenade, wouldn't it be possible to directly reduce dimensionality and attack Liu Bei, Sun Quan, etc.?

After all, even if the Cao Jun's influence is already very large, the number of people is very large.

But fighting in the south is far less convenient than in the north.

The northern soldiers could not stand the southern climate alone.

What's more, we still have to fight on the river.

In this case, the strength of northern soldiers will be greatly weakened.

Of course, the same is true for southern soldiers. If they expedition to the north, they would not be able to stand the northern climate, but they were much better than northerners.

After all, to fight the cold, you only need to stuff your armor with wool and other warm things.

But the northern soldiers are different. Just being uncomfortable is a huge problem.

This is also the reason why Soochow was only destroyed in the Jin Dynasty during the Three Kingdoms period.

Since ancient times, emperors in the north have liked to run south, and it is not unreasonable.

Therefore, to deal with the coalition forces of Sun and Liu, the current boss Cao’s strength alone is far from enough.

However, although black powder is easy to manufacture, it still requires a certain industrial system if it is used.

First of all, it is steel.

In fact, the method of smelting steel had already existed during the Three Kingdoms period, but it was surprisingly slow compared to later generations.

Moreover, the cost is extremely high. The smelting of pig iron into hundreds of forged steels, or even thousands of forged steels, requires a lot of manpower and material resources, as well as financial resources.

The armor and weapons of the Tiger and Leopard Cavalry are made of ordinary smelted steel.

However, it is far incomparable with Hundred Forged Steel.

But even so, the Tiger and Leopard Cavalry can still rely on excellent equipment to travel in all directions during the Three Kingdoms period.

The difference from the Tiger and Leopard Cavalry is to fall into the camp, and the 800 soldiers in the camp are strong in their own strength.

Every single picked up is of the level of a teenager.

This kind of soldiers, although there are few people, they still have cooperation, and Gao Shun himself is good at arranging troops.

Therefore, the trapped camp almost completely defeated the tiger and leopard riding.

That is, after the camp was gone, the Tiger and Leopard Cavalry dared to claim to be the leader of the arms.

Of course, Cao Cao spent all his thoughts and thoughts and was able to make only five thousand tiger and leopard rides.

There are only five thousand rides, which cost most of Cao Cao's savings to build.

This shows how much steel is burning money.

However, Bai Feng naturally had a solution.

Pouring steel method.

The steel filling method is much simpler than the popular steel frying method at this time, and it is also a symbol of initial industrialization.

Moreover, its output is at least tens of times, or even hundreds of times, more than that of the steel method.

This kind of efficiency is not an order of magnitude at all.

But if you want to use the steel filling method, you must have a steelmaking furnace.

Without a steelmaking furnace, it is impossible to use manpower to fill steel.

After all, the melting point of iron is 1538 degrees Celsius, this degree, I am afraid that it will disappear as soon as a person touches his hand~lightnovelpub.net~ Therefore, a steelmaking furnace is very necessary.

Now that he has finished the work at hand, he only needs to wait for the grain to mature, and Bai Feng simply prepares to cast the steelmaking furnace.

With a steelmaking furnace, there will be a steady stream of steel.

With steel, armor weapons can be strengthened.

Pig iron and 100 forged steel are simply incomparable.

Hundred forged steel is far more tough than pig iron, and it is not easy to break.

If the two armies are fighting against each other, if the strength gap between the two sides is not large, the difference between them is the equipment.

Well-equipped ones will always have an advantage.

Can imagine.

Two people were fighting each other, and the armor and weapons on one body were all pig iron.

But the other one, the armor and weapons on his body are all made of 100-forged steel.

In this case, unless the person with 100 forged steel equipment is a pig, he will definitely win.

Hundreds of forged steel can easily cut off weapons made of pig iron, which is beyond doubt.

But the weapon made of pig iron slashed on the armor made of hundred forged steel, I am afraid that nothing will happen except the sparks.

At most it will leave a mark.

It is precisely because of this that steel is particularly important.

Not only weapons, but the application of black powder requires hundreds of forged steels.

It can be said that as long as there is 100 forged steel, its influence is no less than that of high-yield crops such as potatoes and corn.

After all, one can feed people, and the other can expand territory.

The two are simply indispensable and complement each other.

One can stabilize internal affairs, and the other can resist foreign enemies.

Now as long as these two things are done well, dealing with the Sun and Liu coalition forces will be far less uncomfortable as before.

I remembered that in order to get Jiangdong, I took a lot of thought.

Therefore, the first thing Bai Feng wanted to find was Ma Jun, a famous craftsman in the north.