"Tested? How much can you plant in a day? ”

"After leveling the cultivated land, if you set one horsepower, you can sow about seven acres a day." Liu Chang gave an approximate figure.

Li Ke nodded with satisfaction, this speed is already very fast, at least more than double the number of previous cocoon cars, Li Ke when he was a child, they interplanted wheat, a mule a day can sow about ten acres, if you plant wheat alone, that is, six or seven acres.

However, the number of acres in modern times is larger than that of Datang, and it is very good that Datang can achieve this efficiency, at least much higher than the efficiency of the current car. The most important thing is that these two iron wheels can save animal power and manpower, especially the person holding the cart in the back, so it is not so laborious.

Even when the animal power is insufficient, the cocoon can be pulled by manpower to sow the seeds.

There are not many other cash crops in Datang, mainly grain, and almost all of the grain is monocultured, and the efficiency provided by this cocoon is naturally extremely high.

It can be said that these advanced tools are releasing productivity, but the premise is that Datang's iron smelting volume must keep up.

These semi-iron seeders consume more pig iron than the Quyuan plow, and if you want to spread it to the whole territory of Datang, you can only dig iron ore in various roads of Datang to start iron smelting.

"We started rolling it out this year, and it's starting to build it on a large scale now. Start with Kannai Road. Li Ke thought about it and directly gave a decision, the promotion of this kind of iron cocoon car cannot be fast, first, the production of pig iron is limited, and second, the people have no money in their hands.

So Li Ke has begun to find a way to reduce costs, he thought of another trick, Li Ke when he was a child, the people did not have so much money in their hands, and it was impossible to buy fertilizer every year, so at that time, the government would provide agricultural loans to the people, I believe that as long as you grew up in the countryside, you have heard of it.

Agricultural loans are often one-year, that is, loans to buy fertilizers in the spring, grain sales in the autumn to repay the loans, and continue next spring.

The interest rate of agricultural loans is very low, and Li Ke remembers that many businessmen still had this idea at that time, and when they ran out of funds, they went to the village to fool many villagers to help them take out loans and give the villagers some money. There are few people in Li Ke's hometown who do this, because there is a lot of land, and the people need a lot of agricultural loans.

In some places where there is little land, the people do not need so many agricultural loans, so some people do this.

Maybe Li Ke can use this method to give loans to the people of the world to buy columbian cars and quyuan plows?

It's not impossible.

In fact, if it is a loan, Li Ke's expenses will be less, because from the outside world, Li Ke has to occupy a lot of funds, a plow is 300 yuan, there are so many people in the world, how many people can Li Ke support?

But in fact, the cost of Li Ke's own production of a quyuan plough is only a dozen yuan, and the funds occupied by these quyuan ploughs are far less than people outside think.

According to the calculation of 100 yuan, the 30 million people in the world are only 1 billion yuan, and the 12 million yuan in Li Ke's hand is more than 10 billion yuan.

Besides, this thing doesn't need one for everyone, only one for each household, and the people who have registered in Datang are only more than three million households.

So...... Can you fool people in this? Has anyone stepped up and is willing to give themselves a pit?

What's more, when the cost of this quyuan ploughshare is loaned to the people, Li Ke can recover it in other ways, for example, when the people are slack in the farm, they deduct part of the loan money by working?

Nowadays, most of the people grow grain in most areas, because the crops are almost the same, so when they are not busy, there is leisure time.

If these times are deducted from a certain amount of loans by working for Li Ke, but in fact, maybe the value they have made by working for a month or two has already earned the money from the plowshare, and the rest, Li Ke is not pure earning!

And it doesn't delay people's livelihoods! After all, productivity has been liberated!

There are heads and heads, but someone needs to help Li Ke calculate the relevant basic data, otherwise...... Give it to Li Tai?

Li Ke has already had countless commotion in his mind, oops, it's another day of blood boiling in his brain.

Come to think of it, it's really exciting to operate the people of the world.

By the way, the mule can also reproduce in large quantities, although there are already mules in the spring and autumn season, but I'm afraid everyone can't think of it, the mule still cherishes the ornamental animals at that time, mainly for the royal and noble ornamental use, the benefits of the mule are not much to say, although the fertility is extremely poor, but its service life can reach twenty to thirty years, far more than the work value of horses and donkeys.

And the vitality and disease resistance are extremely strong, the strength and endurance are great, and the amount of food is average...... You taste, taste. What a perfect tool mule!

The value of service is much higher than that of horses and donkeys, so it is not too good to promote.

At present, the ownership of Xizhou and the Eastern Turks has given the Tang Dynasty a large number of pack horses, which are not suitable for war horses, but they are used to breed mules, which is simple.

Mules generally refer to the products of male donkeys and mares, called horse mules, or mules for short.

The products of stallions and female donkeys are called donkey mules, and donkey mules are also excellent, but they are worse than horse mules, so it is better to breed horse mules.

Hey, yes, I found another job for Li Tai. This is also a measure that requires a large number of statistics on the stock of donkeys and horses in the private sector.

"Master Lu, how is the improvement on your side?" Li Ke turned to Lu Daqiang's side again.

"Back to His Royal Highness, papermaking and printing we have been improving, movable type printing and engraving printing we are jointly advancing, movable type and engraving are suitable for printing books and content are different, can be used, but at present, the version of the two can not be improved, can only be improved in the material, but in fact the improvement is limited."

"At present, the main improvement is to optimize the ink in printing to see if we can find a more suitable and cheaper ink, and the main improvement is paper."

"We used different materials for experiments, almost similar to what Your Highness said, there are fibers, we have tested them, and we have also added different types of glue to them, such as glutinous rice juice, gum and so on." Lu Daqiang introduced to Li Ke the improvement plan of printing and papermaking.

In terms of printing, in fact, Li Ke provided them with a more advanced printing machine structure diagram, in fact, it can't be said how advanced, these printing machines are also kept in the underground warehouse, but they are the kind of manual large printing presses, a bit like the kind of printing machines around the Republic of China or World War II.

However, these machines are still quite difficult for this era, and it is impossible to do them in one step, so it is better to let them improve slowly.

In fact, the improvement of paper, on the contrary, is more significant, the current paper price is still a little high, and the cost of paper continues to reduce after the effect of social promotion is greater.