As Qin Chuan expected, Luo Zixi and Dongli San people had a strong desire for knowledge, and they almost kept asking Qin Chuan all kinds of questions during dinner, from astronomy to geography, but more about physics and chemistry.

Qin Chuan is actually just half a bucket of water, and he can't remember a lot of things taught in junior high school physics and chemistry classes, so he can only think of what to say, and he can only say some simple principles, and he can't basically explain it with slightly higher professional knowledge.

For example, why the sun shines hotly, why the moon glows softly, why the stars shine, why people have to breathe, why the leaves of plants grow towards the sun, why fish swim in water, why the wind blows into the furnace when making iron, why it burns more vigorously.

These are enough.

After hearing what Qin Chuan said, Luo Zixi and Dongli Sanren were excited, and they were also full of questions, and even had considerable doubts.

European alchemy believes that mercury is the father of metals, sulfur is the mother of metals, and that all metals are living organisms that can evolve into gold.

Therefore, European alchemists have been exploring ways to catalyze base metals into gold, and like Chinese alchemists, they want to achieve immortality through alchemy.

Before the seventeenth century, Europeans were convinced of this, and Britain and France even minted the brass made by alchemists as gold as gold and minted them into so-called gold coins, and successive kings favored alchemists as much as the emperors of China.

And the chemical elements that Qin Chuan talked about were completely contrary to the European alchemists.

Iron is iron and can react with other substances to form other iron-containing substances, but it can never become gold.

As for the elixir of life...... Qin Chuan didn't puncture this thing, only told them that mercury, lead, sulfur, and other materials they often used for alchemy were all poisonous.

Cai Ju Sanren was also present, and like his junior brothers Dong Lisan and Luo Zixi, Cai Ju was also full of doubts about what Qin Chuan said.

Qin Chuan didn't explain, and if he wanted the answer, he could only test it himself.

Wen Cheng, Chen Zhan, Yan Sanqi, Li Xuejing and others were also present, but they were not as excited and confused as Luo Zixi and the others, because Qin Chuan wrote these things out and compiled them into teaching materials.

Wen Cheng, Chen Zhan and the others were familiar with these textbooks, but they didn't have time to explore, and they didn't have a foundation in alchemy, so Qin Chuan didn't let them engage in chemistry.

……

The next morning, Qin Chuan summoned Luo Zixi, Dong Li, and Cai Ju again.

Because there were a lot of people last night and I drank alcohol, I didn't explain some things.

After the three of them arrived and had tea on the table, Qin Chuan got straight to the point and said, "Let you come, there is something I want to ask you." ”

"It is an honor for me to be entrusted by the general." Cai Ju Sanren took the lead in making a Taoist series, and responded with a straight face.

He has not contributed anything since he came to Lou Fu, and he has been tinkering with Luo Zixi and his junior brother recently, racking his brains to think about how to get the weight, and when he heard Qin Chuan's words, he immediately perked up.

"The Taoist is polite."

Qin Chuan smiled, then beckoned behind him.

The three Guan Emperor soldiers each stepped forward with a plate containing silver ingots, and placed them on the coffee table next to Luo Zixi, Dongli and Cai Ju.

"Everyone, this is the reward of the glass making method, Mr. Luo Zixi is the first merit, the head of the East Fence Road and the head of the Ju Picking Road are the second merit, the reward is not much, please don't dislike it."

"This ......"

Luo Zixi and the others looked at the silver ingots on the plate, and then looked at each other.

Luo Zixi's plate contained two ingots of fifty taels of silver, a total of one hundred taels of silver, and fifty taels each in the plate of the east fence and the chrysanthemum picker.

"General, this ...... That's a lot of rewards. ”

Luo Zixi, as a Westerner who has always been upright about human feelings, has been poor for a long time, and he is a little overwhelmed in the face of this wealth that fell from the sky.

"Not much, not much."

Qin Chuan smiled and waved his hand: "Let's be honest, those high-quality glasses can make a lot of money, so this mere reward is not worth mentioning at all." ”

"This ......"

"Thank you, general, it's better to be respectful than to obey your fate."

When Luo Zixi was still entangled, Cai Jusan had already stood up and solemnly saluted Qin Chuan.

"Poor thanks, general." Dong Li was not entangled, and also got up and saluted Qin Chuan.

Seeing that his colleagues didn't refuse, Luo Zixi didn't want to say anything more, so he had to draw a cross on his forehead and chest, and said reverently: "General Qin, may God bless you." ”

"Hahahaha, sit, sit."

Qin Chuan laughed heartily a few times, and after they all sat down, he said with a straight face: "Everyone, the glass factory can be handed over to the Department of Industry to take care of, and the things I asked you to ponder in the booklet before can also be slowed down a little." ”

"Right now, there are two very important things that you need to start working on right away."

"These two things can benefit the common people, Ze is the world, if you can study it, you will go down in history,"

"Poor Dao does not seek to go down in history, but it is the honor of Poor Dao to be able to serve the general." Cai Ju stood up again and said seriously.

Luo Zixi asked suspiciously: "May I ask the general, what is so important?" ”

"Fertilizers and pesticides."

Qin Chuan opened his mouth and said.

"Fertilizer? Pesticides"

Luo Zixi and the others were stunned.

"That's right, fertilizers, pesticides."

Qin Chuan emphasized it again.

He approached the people of Luo Zixi and Dong Lisan, mainly to study mercury thunderate and explosives, but after a visit to his own territory, he changed his mind.

For the time being, mercury thunderate and explosives are secondary.

The most important thing is fertilizer.

He saw that the people in the prefectures and counties under his rule were trying to make fertilizer, and he also heard that many people went out to work with a bamboo tube, which was specially used to hold urine, and took it home after work and poured it into a urine bucket to collect it.

If you want to, many people hold back until they go home and then pull again, and if they can't help it, they can find a way to take it home.

The people who went out to graze even collected all the cow and sheep dung and brought it back.

Because the people are too short of fertilizer.

Human and animal feces are not enough at all, and Wang Jizong's dung pill requires animal corpses, internal organs, etc., which are originally few, not everyone can afford to use them, and bone meal is also very small.

Moreover, even after fermentation, the fertility of these natural fertilizers is not much stronger.

Now in the era of the Xiaoice River, winter comes too early, spring comes too late, it is difficult to achieve two years and three crops, so it is also difficult to use legume plants to fertilize the fields.

A lack of fertilizer means that production cannot be increased.

In fact, although Wang Jizong is vigorously building water conservancy and irrigation projects, due to the lack of fertilizer, the output of wheat, millet, millet and other grains has not increased significantly.

Food is more important than guns.

So, Qin Chuan thought of chemical fertilizer.

Of course, he does not have the luxury of synthesizing ammonia, as long as Luo Zixi and others can use various minerals to make fertilizers such as lime nitrogen and calcium phosphate.

These things are originally products of the nineteenth century, and it is very difficult for Luo Zixi and them to do it, but it is not impossible to get it, it depends on the ability of these people.

If you want to make chemical fertilizers, pesticides must be used, and these two things can be studied together, such as lime nitrogen, which can be used to make pesticides in addition to fertilizer.

For these two things, Qin Chuan knows very little, only knowing that the three major nutrients of chemical fertilizers are nitrogen, phosphorus, and potassium.

But Luo Zixi and the others didn't know what these three things were, and Qin Chuan didn't know how to describe them.

Therefore, Luo Zixi and others had to spend a lot of time and a lot of experimentation to find out these three things.

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