Yin Qingfeng said everything he could think of in one breath, originally he wanted to say something about the truth that the people are rich and the country is strong or the country is rich and the people are strong, but after thinking about it, now is not the time to say those things, so he simply shut up.

Yin Qingfeng shut up, and Li Shimin was silent.

He looked down at the figure drawn by Yin Qingfeng on the case, pondered for a while, and said, "No matter how you prospect for the mine, your copper coin improvement method is extremely good." If you don't have anything else to say, go to the palace and your majesty. ”

"Your Highness, slow down, the kid still has something to report."

Li Shimin stopped, "You can say it." ”

"The kid has a way to solve the current situation of the shortage of cattle in our Datang, but it takes time...."

Li Shimin stared at Yin Qingfeng for a while, "Really? ”

Yin Qingfeng nodded, "Yes!" ”

"Say! How? ”

"His Royal Highness promised the kid a condition, this matter is not estimated to be difficult."

"Speak quickly!"

As soon as he heard that he could solve the problem of ploughing cattle, Li Shimin's beard was about to rise: the previous kid's advice had solved the food problem. But the number of ploughing cattle is also a problem, and he can solve it now, but he needs to listen to what he has to say.

"Give the boy some fields, the more the better, and then give the boy some cattle, the ratio of male to male is about one to four, and after three or four years, the boy can provide ploughing cattle to His Highness."

"It's as simple as that?" Li Shimin asked uncertainly.

"Yes!"

In fact, in the Qin and Han dynasties or earlier, there were institutions specializing in breeding cattle and horses.

Seeing Li Shimin like this, Yin Qingfeng knew that Li Shimin didn't expect or no one mentioned to him that he wanted to engage in centralized breeding, otherwise it would be impossible for him to exploit this loophole.

Concentrated breeding, just pay attention to the epidemic, in modern times it is called a farm. There are not many infectious bacteria in Datang, as long as the cowshed is scattered and ventilated, how much of a problem can it be.

Asking for land is just a matter of Yin Qingfeng taking advantage of it.

Moreover, the curved plough "invented" by Yin Qingfeng can be driven by mules and horses. He and Li Shimin talked about farming cattle, but they were just taking advantage of loopholes.

"The land is not a problem, but how can you guarantee that this cow can be given to a certain ... How much to give? ”

"Does Your Highness know what the breeding period of cattle is?"

Li Shimin shook his head.

"One cow, four calves in three years or five calves in four years. Except for those who are likely to die of illness and those who are left to continue breeding, after three years, the number of cattle that His Highness can provide will be tripled. Theoretically: His Highness gives the boy a hundred cows, and the boy will return two hundred cows every year from the third year, and it takes five years for the cow to give birth to a cow. In that case, in seven years, three hundred or more heads a year, and more and more in the future. But His Highness knew that the forage could not keep up, and the boy could not raise so many cattle. ”

"Give you a hundred, and you provide two hundred a year?"

"That's probably the case, but the kid still has to stay in some of the yaks to continue breeding, so the number of cattle provided will be smaller, and it is mainly yaks. When the boy went to check the farm in the house a while ago, he asked the tenants about raising cattle and learned about this method. Today's suggestion to His Highness about this matter is also so that the people of the Tang Dynasty can harvest more grain. ”

After Li Shimin listened to the walking around on the ground, Yin Qingfeng looked dizzy.

After a while, Li Shimin stood still and said to Yin Qingfeng: "If it is feasible, it is naturally a good strategy." ”

Yin Qingfeng hurriedly made a guarantee: "It's naturally feasible, the kid dares to make a military order." ”

"Okay, since you have faith, you can go back and wait for news. I will deal with the matter of the earth and the ox in the next few days, and I will inform you when the time comes. ”

"The kid quit." Yin Qingfeng's goal today was achieved, and he took the opportunity to leave.

Li Shimin also went out together, but one entered the palace and the other went home. But the others didn't know, watching the two of them go out together, those eunuchs and palace maids thought that Li Shimin was sending Yin Qingfeng out, but the eyes that looked at Yin Qingfeng one by one were wrong.

Li Shimin didn't pay attention to these things when he thought about them, but Yin Qingfeng couldn't help laughing. Let's be considered a fox and a fake tiger.

Is it important for a regime to have money? For Li Tang, who is suffering from money shortage and food shortage, is it important to have money? For Li Shimin, who wants to make a difference, is it important to have money? Just look at his expression and pace.

What was the financial source of the Tang Dynasty or feudal society? Agricultural taxes.

But what was the agricultural tax in the Tang Dynasty? Millet and silk! Even the courtiers issued a lot of corn and silk, do you say that the Tang Dynasty is rich or not? Want to give him a method equivalent to one as ten or hundred, and he can still be calm?

Of course, there is a question of credit money involved.

The credit currency mentioned here is not the credit problem of paper money in later generations instead of gold and silver coins, but the problem of face value.

People are accustomed to the purchasing power of one copper plate being a copper plate, and two copper plates are the equivalent exchange of two copper plates. Now what Yin Qingfeng proposed is to only mark five or ten words on the copper plate, can it replace the original large number of copper coins?

Yin Qingfeng's method is indeed feasible, but it depends on how the people of Datang deal with it.

In fact, they don't have many options.

Since the Han Dynasty, the gold, silver, and copper mines that are easy to mine on the surface have been almost excavated. The rest are either difficult to mine or no new veins have been found. With wars, burials, etc., there are not many available precious metals still in circulation in the actual market, and in this era, there is no use for investment except to buy land, and rich families will bury gold, silver and copper in their own yards. Otherwise, it would be impossible for the Sui Dynasty or the Tang Dynasty to collect taxes in a rent-like and mediocre manner, nor would it be possible to use grain and silk to make money.

If you are poor, you will think about change, which is an eternal truth. Now Yin Qingfeng pointed out an idea that they had never thought of, and how to solve it Yin Qingfeng was not worried.

This method can not only solve the problem of money shortage, but also lay the foundation for changing the agricultural tax problem of Datang in the later stage.

After the Tang Dynasty established its political power in the mess of the late Sui Dynasty, in order to restore agricultural production, it adopted the same system of equalizing land that had been practiced by the previous generation: 100 mu of land was granted to each male, including 20 mu of Yongye field that could be inherited by his family after his death, and 80 mu of land that was handed back after his death.

On this basis, the law of rent adjustment was implemented, stipulating: every Ding per year to the state to send two stones of corn, for rent; Lose two zhang of silk, three taels of cotton or two zhang and four feet of cloth, and three catties of hemp, which is the tune; Serving for 20 days, it is called regular service, and those who do not serve are paid 3 feet of silk or 3.6 feet of cloth every day, which is mediocre. If the assignment is increased due to events, the additional number of days will be used to offset the rent and adjustment, "five days in ten days will be exempted, and in thirty years, the rent and adjustment will be exempted", and the total number of additional days and regular duty in each year shall not exceed 50 days.

The agricultural tax in the Tang Dynasty accounted for more than 60 percent of the overall fiscal revenue. However, the proportion of commercial tax before Li Longji was less than 10 percent, which shows that many people do not attach importance to business.

The law of social development is that there should be fewer and fewer people engaged in agriculture and more and more people engaged in other industries. However, for the "agriculture-oriented" Tang Dynasty, the development of industry and commerce was not encouraged or even restricted. Why is this so? Because of tradition, because of inertia, and because of low productivity. At the same time, the ancients did not realize the benefits of commercial development.

If you want to develop business, you can't do without the circulation of money. Now when you go to the Taste Building for a meal, you have to pull a large cart of copper coins, how do you say to develop business?

As long as commerce develops and the people no longer expect to get from the fields, what are the chances of a peasant revolt in the future? Without the internal worries of the people eating, you only face the external troubles of foreign races, and you can always support it for a few more years.

Now that the proposal for the reform of the face value of the currency is being put forward, Yin Qingfeng also decided after careful consideration.

The first reason is that in the embarrassing situation of Li Tang's treasury, in the absence of a better way, Li Yuan and his courtiers will resolutely order the implementation.

The second reason is that Li Shimin has begun to breed the idea of replacing Li Jiancheng in his heart, and he needs this suggestion. He needed to suppress Li Jiancheng's prestige in all aspects, especially in governing the government.

The third reason is that he chose the timing of his advice. Doesn't he want to be more secure and postpone this monetary reform for a few years? OK! But the previous new cultivation technology was presented to the court by Li Shimin, and you don't need to think about it to know that Li Shimin will definitely use this opportunity to attract more people. Could it be that Li Jiancheng was willing to look at it stupidly? Could it be that Li Shimin, who is inflated in ambition, will not do anything in advance? It has been less than three years since the original Xuanwumen incident occurred. If he doesn't get a certain amount of recognition from Li Shimin, how can he persuade Li Shimin at that time? If Li Shimin still adopts the original method to ascend the throne, then all his ideas will have to be postponed to start over.

Fourth, if you want to change the concept of the ancients who valued agriculture over commerce, you must first make commerce prosperous. To achieve commercial prosperity, it cannot be done without ten or twenty years of work. If he had made this proposal five or ten years later, his plan would have been delayed for five or ten years, and he could not afford to wait.

In Yin Qingfeng's vision, he wanted to change history before the summer of the ninth year of Wude.

If he can't change it, Yin Qingfeng plans to pull Li Shimin off the horse and let him fulfill his dream in person.