In order to ensure that Datang's gold and silver, as well as copper coins, do not flow out, which causes further panic in Datang.

Li Chong felt that things like banks and jiaozi should be produced at this time.

Therefore......

After talking to Li Erxian, Li Chong wrote a letter to Li Chengqian when he went back.

The gist is that if the King of Wei wants to trade in Yangzhou and other places, then they cannot be allowed to transport back all the gold, silver, and copper coins in vain.

They should implement certain protective measures for their own economy.

How to protect, first, to encourage direct barter when trading, of course, this is certainly unrealistic.

Then it can only take the way of establishing a bank and conducting transactions through banks and jiaozi.

Datang could consider issuing a credit currency and then establishing an international monetary system centered on Datang's credit currency.

Of course!

If it's printing money directly, I'm afraid it won't work.

Because if you print money, it is too easy to be forged, and even in later generations, the anti-counterfeiting technology is already very good.

However, the phenomenon of counterfeit money still exists. So what's next?

Li Zhong thought that it was possible to simply take the method of bookkeeping.

It's just a piece of paper, you take half of it, I take half of it, and when the time comes, it's stamped, and if you want to buy something, when you make a deal, then put the two halves together.

Once the transaction is done, get a new piece of paper with how much money you have left.

Since this method is mainly based on Datang's credit.

Therefore......

Li Chong falsely called this Datang credit currency.

If it is under normal circumstances, then other countries will definitely not want to ah, just think about it, I shipped so many real valuable goods to you, but what I got was just a certificate.

What if you don't admit it then?

Merely......

In Li Chong's opinion, after all, Li Chengqian and Li Tai are brothers, and they want to promote this matter. It should be said that there is still such a possibility.

Moreover, such a transaction method is also applicable to Liaodong.

It's just that before, Li Zhi had always spent all the money he earned in Yangzhou immediately, and almost never saved money for himself.

Because there's no need for that.

Instead of saving this money.

It's better to buy more slaves and maids from Yangzhou and go back with things to eat, drink and enjoy.

Although there is no shortage of food in Liaodong, if you want to talk about enjoyment, silk and satin, and other handicrafts, there is indeed a lot of lack in this aspect.

In order to facilitate this matter, obviously, the next step can only be presided over by Li Chong himself.

Thereupon......

Soon, Li Chengqian had people inform Li Zhi and Li Tai, and asked them to send people to Yangzhou at the same time next year to hold a meeting to discuss trade between the three countries.

And Li Chong, during this period, also had to think about the various problems that he might encounter next.

In fact......

If it is for the convenience of trading, it is definitely better to print the banknote with the amount directly.

In this way, the scope of trading can be further expanded.

But......

Ruth walked step by step, and ate bite by bite, this step was too big, and it was easy to crack. So let's start with the least risky one.

At present, it is limited to one place in Yangzhou, and when it stabilizes and the operating procedures are mature, we will consider whether to go further.

Yuan Heng ten years.

Late spring and early summer.

Li Chong's fertilizer research seems to have finally achieved some results.

In the appropriate amount of potassium sulfate and potassium chloride fertilizer added

Holding on, the onions that had been used with these two fertilizers were obviously larger than the others that had not been used, and seemed to be on average a little larger.

In terms of color, it also seems to be better.

If it's one or two, that's it.

When all the onions are dug up and weighed together, you can see that the yield has generally increased by 20%.

Although this is only an insignificant number, compared with the growth of several times and several times, it is really a bit small, but!

This undoubtedly gave Li Chong confidence.

At least......

It can really be used as fertilizer.

It can be used as a base fertilizer or top dressing.

After completing the research on this fertilizer, Li Chong took Li Lizhi and all the other concubines to Yangzhou together.

Should I say it or not, it is still very convenient to go to Yangzhou now, because since the capital was moved to Luoyang, this Cao Yun has become increasingly developed, and it is on the way, it can only be said that Li Chong should vomit or have to vomit.

In the tenth year of Yuanheng, Li Chong stayed in Yangzhou for half a year and listened to a lot of musical instruments before returning.

And at the same time......

Whether it is Liaodong or Jiaozhi, they all know Datang's next attitude.

If you want to transport the gold, silver and copper of Datang, there is no door.

If you're bartering, that's another story.

However, this year, Li Tai also encountered a problem.

That is the Lingnan side, they carry out maritime trade, which obviously accounts for a part of the interests of the locals.

Thereupon......

Li Chong can see from the negotiation table that Li Tai's people said that there are accusations that the family of someone in Guangzhou is planning to rebel.

Li Chong has not studied much about the situation in Guangzhou.

However, after listening to it only slightly, the object is the Haoqiang family in Guangzhou, and the question is very clear.

This time, what Li Tai's people accused was exactly what Li Chong said when he first met Wei Zheng, and then Wei Zheng said that that person had no descendants of the family who were against him.

What does this family say, it can only be said that it is very rich.

Although Guangzhou cannot be compared with Chang'an, Luoyang, Yangzhou, etc.

But have you ever seen thousands of servants in your family?

And this was still the case in the early Tang Dynasty.

The other party is such a powerful family in the local area.

Li Chong can't say anything about this issue.

But all along, it is true that these heroes have lived very well in their own territory.

Datang is too far away, and the whip is beyond the reach of the whip, so they can only let themselves fool around.

Li Tai's people accused them of wanting to rebel, but Li Chong felt that this was not necessarily true.

It is estimated that it is just a conflict of interests.

But the strength of these powerful people is too strong, which is not conducive to the stable control of the Tang Dynasty, and even, the officials sent by the imperial court, they will treat them lightly, and there are also officials who take the money and stuff it to the central government, saying that if you don't take it, then you just look down on me, of course, they must also have corresponding requirements for the officials they bribed, to the effect that if you take the money, you will treat it as if you don't see it, such an arrogant attitude, this is indeed a provocation for Li Chengqian.

Not......

Li Chong can only say that this question should be handled by Li Chengqian himself.

There are disobedient people, of course, it can only be to destroy the other party, and when the time comes, the men will come to Luoyang as internal servants, and the women will act as slaves.