Although the truth is the same, the blow to Liu Ji was still quite severe.

But many things are not what he says.

Compared to many people, he is already lucky.

It's just that compared to his junior brothers, Liu Ji is now a little more downtrodden.

Yes, this is reality.

Although everyone claims to be based on agriculture and build a country based on agriculture.

But when it comes down to it, people who are engaged in agriculture really can't compete with those who are engaged in machinery.

Are you quitting working on machinery?

Or should you continue to keep your head down and persevere?

"Teacher, I want to keep doing it!" After a long time, Liu Ji made up his mind.

Although there is a lot of food now, it is far from the point where agriculture can stop developing.

There is still a lot of room for growth in agriculture, and this is a fact that no one can change.

However, the Han Dynasty's population policy is still continuing, if no effective method has been found after twenty years.

Then there will be a short-term shortage of food for the Han Dynasty, and there are many ways to solve it.

The simplest thing is to move the population to sparsely populated areas where there is a lot of arable land for cultivation, so that people who cannot get more land can go there to survive.

But this is a temporary solution rather than a permanent solution. Wait until those places are saturated and then continue to move out?

How many new places are there for you to move to?

However, the growth of population is explosive. With such good policies of the imperial court, it is impossible for the population to fail to grow.

Therefore, the best way is to solve it fundamentally.

Increasing the yield per acre is the source, so that one acre of land can feed more people. In this way, even if there is not enough land to distribute, at least people will not starve to death.

It will not lead to the embarrassing situation that some people are neither allocated land nor have enough food at home.

"One of you two must quit. His Majesty has made it very clear that this project has no significance in promoting it in the short term, unless you can find a new direction, a method that can be fully promoted without too high costs.

, Otherwise, there is no point in staying here." Wang Ji said directly.

"Teacher, I..."

"Okay, you go back and calm down first, think carefully before making a decision." Wang Ji interrupted Liu Ji directly.

As his eldest disciple, Liu Ji originally chose agriculture, which was regarded as following his own path. Wang Ji was quite happy.

Although he was engaged in agricultural machinery and he was engaged in agricultural fertilizers, the two were somewhat different.

But now when there are obvious problems with the project and it has been pointed out that it is meaningless, he still has to dive in, which makes Wang Ji a little angry.

Those who engage in scientific research do need a lot of energy, but they are not single-minded.

No one questions the results of this project, no one questions their research direction.

The problem now is that after the project is successfully researched, the cost of promotion is too high, which is a flaw.

After leaving the Academy of Sciences, Liu Ji was also thinking about this issue.

However, the noise in the city made him a little upset, and it was difficult for him to calm down and think about this problem.

So gradually, Liu Ji subconsciously walked outside the city, away from the main road, and walked onto the country roads outside Luoyang City.

There is no snow, and there is no white silver. The green wheat seedlings are growing very gratifyingly, and people can't help but fall in love with them just looking at them.

As I walked, I didn’t know how long it took or how far I walked.

Liu Ji came to a village.

In the middle of winter, not only do families keep their doors closed, well, some families don’t have doors at all.

Anyway, walking on the streets of the village feels like an uninhabited village.

If it weren't for the occasional smoke coming out of every house, it would be really permeable to walk here.

Suddenly, Liu Ji saw an old man carrying a bucket into a makeshift shed in a courtyard. When he walked out, there was some dust on his body.

Why leave all this ashes?

"Old man, I am Liu Ji from the Academy of Sciences. This is my token. Can I go in and talk to you?" Liu Ji quickly stepped forward to say hello. He felt that there seemed to be some secret here. :(/

"Oh, people from the imperial court, come in quickly!" The old man smiled and greeted Liu Ji quickly.

It was too cold outside, so the old man brought Liu Ji into the house.

The temperature inside the house is slightly better than outside, but in order to keep warm, the surroundings are sealed more tightly. After closing the door, it is completely a small dark room where you can't see anything.

In the center of the house, a pit was dug in the ground, and there was a fire pit wall built with some scattered soil around it.

On the other side, there are some firewood and some hay straws.

Several children and women in thin clothes were sitting around the fire, adding handfuls of firewood, hay and straw to the fire from time to time.

"Old man, I saw you were pouring out these ashes just now, right?" Liu Ji glanced at the fire pit, which was obviously smaller.

"Well, you can't be careless when lighting a fire in this house. You can only add ingredients little by little, especially these hays. If you fill in too much at one time, the fire will suddenly become bigger. If you don't pay attention, the house will be set on fire.

Already."

"These ash can be used as some fertilizer, but the effect is not very good, but now it is better than nothing..." the old man explained with a smile.

"Then have you ever tried mixing the ash with feces?" Liu Ji suddenly had a bold idea.

He didn't know how he came up with this idea. In the past, he knew about various fertilizers, but he had never connected them.

"Mixing them together? Isn't that making trouble?" the old man said scornfully.

Then he said: "It seems that you have never been on the ground. This excrement must be mixed with water. Otherwise, if you put this bucket in, you will die as much as you pour it. The power of excrement is so great, plus these

Hui, do you still want that land?"

Liu Ji was thinking about this question blankly.

Land is definitely needed, but according to current methods, the fertility of the land is obviously not as good as those near the mines.

The output can speak for itself and the data can prove it.

There are only a few types of fertilizers that are commonly used nowadays, including human and animal manure, plant ash, animal carcasses, etc., with the first two being the main ones.

Human and animal feces cannot be used directly. It is best to leave it for a period of time and then add water for use.

Plant ash can be used directly, which is also a method left over from the slash-and-burn era.

Once the fire is clean, plant it and forget about it, then change the place to continue the fire, and then turn back and do it again after an unknown number of years, and so on.
Chapter completed!