Kumakawa Ichiro tried to master Dahua's technology and catch up with Dahua by opening trade ports and sending foreign students to Dahua for learning.

This is a good idea, but it does have some effect under normal circumstances.

However, Dahua's technological process is not normal.

The advancement of science and technology in history has relied on years of research by geniuses to slowly promote the advancement of science and technology.

However, those latecomers can often study in the right direction without taking detours, and they will naturally spend less time.

However, the development of Dahua Technology now depends mainly on Wu Changqing's system, which is countless times faster than normal.

It is impossible to keep up with Dahua through learning.

When they learn to build trains, Dahua should basically be able to build airplanes.

When they learn to build airplanes, Dahua should basically be able to enter the Internet age.

Moreover, for some core technologies, Wu Changqing also adopted many methods to block them to prevent leaks.

In Nanjing, Wu Changqing did not deal with government affairs, and came to a research institute that was heavily guarded.

Here is his designated ammonia project.

To be precise, it is the synthesis of urea and the amine phosphate project.

There are two main difficulties in the synthesis of urea, one is the preparation of ammonia, and the other is the synthesis of urea.

Urea synthesis requires ammonia and carbon dioxide to be synthesized under high temperature and high pressure conditions.

Due to research on steam engines, Dahua’s current high-temperature and high-pressure furnace technology is already very good, which can meet the requirements for urea synthesis.

The remaining difficulty is only the preparation of ammonia.

And this is naturally not difficult for Wu Changqing. He directly spent 100,000 technological points to light up the related technology of ammonia production.

Then Wu Changqing discovered that the production of ammonia is actually quite simple, just use nitrogen and hydrogen, and then add a very special catalyst.

It can be said that among these 100,000 scientific and technological points, 50,000 are worth the discovery of this catalyst.

Those who don't know this kind of catalyst, even if they know the theory that nitrogen and hydrogen can synthesize ammonia, are useless, and they will fail countless times in the actual preparation.

Moreover, every time I fail, I am confused and cannot understand the reason for the failure.

Historically, the discovery of this kind of catalyst is often due to various chance coincidences, not the result of research.

In science, some unreasonable things happen.

Now Dahua researchers no longer need to be tortured by this kind of thing, Wu Changqing directly told them to join this catalyst.

Then, the ammonia gas was easily produced.

The next step is the synthesis of urea, Wu Changqing does not need to look at it anymore.

Ammonium phosphate fertilizer is neutralized by phosphoric acid and ammonia gas, and processed to obtain nitrogen amine compound fertilizer.

This type of fertilizer is suitable for almost all soils and is the most widely used fertilizer.

Nitrogenamine and urea, two kinds of fertilizers can almost meet the fertilizer problem of all crops.

The difficulty in the preparation of ammonium phosphate is also the ammonia gas, which has now been solved at the same time.

A few days later, someone took the finished urea and nitrogen amine in front of Wu Changqing.

Smelling the familiar smell, Wu Changqing was very sure that these were the fertilizers, urea, and nitrogen amines that he used most often when farming in his previous life.

Urea and nitrogen amines are of great significance to agriculture. If they are fully promoted, they can at least double the current grain output.

Of course, if you want to fully promote it, I am afraid it will take another year or two, or even several years before it can be officially put into use.

Because at the current technological level, the cost of synthesizing urea and nitrogen amine is still quite high, and it is not particularly cost-effective to use it as a fertilizer.

Maybe, the money sold for the food grown is not enough to buy chemical fertilizers.

But it doesn't matter, as long as we continue to optimize the process, improve efficiency, and find ways to reduce the cost of synthesis, sooner or later, this thing can be produced on a large scale and cheap.

At that time, these two fertilizers can become a big killer in agriculture.

The doubling means that with the current land, it can feed hundreds of millions more people.

Coupled with the large amount of land reclaimed by mechanization, it can feed countless more people in this respect.

As long as it reaches the level of later generations, the land of Everbright will be able to feed more than one billion people.

In the future, the Ganges River Basin in India will be occupied, and the Mississippi Plain in North America will be occupied again, which will feed 3 billion people.

With enough food, enough labor can be liberated to develop industry.

This is an advantage that other countries cannot learn. For the backward agriculture of Fusang, at least 80% of the population needs to work in the fields to feed everyone.

Of the remaining two adults, if they are divided up by various industries, there are not many left.

Without labor, even with technology, industry cannot develop.

Even a populous country like Fusang can't make up a labor force, and it's even more difficult for other countries.

In the original time and space, the British Industrial Revolution was formed by countless people at the bottom with blood and tears.

It depends on starving a large number of people at the bottom, plundering food from the colonies and starving the people in the colonies to maintain the food rations of factory workers and maintain the development of industry.

Although Britain took the lead in the Industrial Revolution, the country has become extremely powerful.

But when it comes to the living conditions of the people at the bottom, it is actually not like the Qing Dynasty.

Unless Fusang, like the British Empire, develops industry by overdrawing the lives of the people at the bottom, it will be impossible to develop.

This is why Wu Changqing attaches great importance to agriculture and food production.

He wants the rapid development of industry while ensuring that everyone has enough food, so that the reduction in agricultural population will not lead to a reduction in food production.

"You don't have to do anything in the future. It's best to find someone to feed you when you eat, and save all your time to research ways to reduce costs. This is a big problem for people all over the country to eat.

If this question is resolved within one year, I will reward you with a duke, and within three years, there will be only one marquis, and within five years only the earl. As for the problem that has not been resolved within five years, I will not be allowed to call it my student in the future. "

Wu Changqing said to Lian Fujin that this person was also one of his first batch of students.

Almost all of his first students are now talented, but there are high and low achievements.

A few have achieved significant results in some important fields, some are working hard, and some have limited talents and can only study less important fields.

However, compared with others, this group of students are considered talents.

"Students remember the teacher's teachings."

Lian Fujin said, of course he couldn't really find someone to feed himself. However, he also felt Wu Changqing's emphasis on these two fertilizers from Wu Changqing's words.

A duke, Dahua has not yet obtained the title of a foreigner. The address of the latest chapter of the aircraft carrier I built in Daming: https://lightnovelpub.net/book/149212.htmlI built the full text of the aircraft carrier in Daming to read the address: https://lightnovelpub.net/read/149212/I built the aircraft carrier txt download address in Daming: https://lightnovelpub.net/down/149212.htmlI read it on the mobile phone built by Daming: https://m.lightnovelpub.net/read/149212/In order to facilitate the next reading, you can click \"Favorites\" below to record this reading (Chapter 654 Urea), and open the bookshelf next time You can see it! If you like "I Build an Aircraft Carrier in Daming", please recommend this book to your friends (QQ, blog, WeChat, etc.) ,Thank you for your support! ! (lightnovelpub.net)