Following.

Edict Prison, New Crooked Neck Tree.

"Fertilizer planting trees, it's really yours."

Zhu Gaoxu was burying the fertilizer residue under the tree, as if he was counting on this new tree to grow better, Jiang Xinghuo looked at the other party's actions and was powerless to complain.

"So what is the effect of chemical fertilizer on soil-grown sprouts?"

"Good." Li Jinglong took over, "I have made a total of three groups of sprouts, no chemical fertilizer for soil-grown sprouts, no chemical fertilizer for soil-grown sprouts, and no chemical fertilizer for hydroponic sprouts. ”

"In the two groups without chemical fertilizer, the growth of soil culture and hydroponic sprouts is almost the same, but as long as it is compared with the sprouts of soil culture and fertilizer, it is completely incomparable."

The more Li Jinglong said, the more energetic he became: "Moreover, not only sprouts, but also other vegetables, such as small rape and oilseed lettuce, have also shown obvious differences in growth. ”

"It's all good to add fertilizer?" Jiang Xinghuo asked.

"Yes, the growth is completely different!"

Zhu Gaoxu interjected and asked: "Mr. Jiang, in the last class, you said that we would see the effect of chemical fertilizers in five days, and then tell us how to use them on a large scale, is this one of the nine classes?" ”

Tie Hanhan actually wants to prostitute himself for nothing?

Jiang Xinghuo nodded decisively and said, "Count, and this lesson is very important." ”

"Huh?"

Zhu Gaoxu was a little reluctant, so to speak, there are only eight classes after today's lecture, which is a pity.

"It is really important to increase the yield of grain per acre." Li Jinglong nodded in agreement.

"That's not what I mean when I talk about fertilizer."

Jiang Xinghuo doesn't seem to want to play cards according to the routine at all today.

Zhu Gaoxu and Li Jinglong were stunned when they heard this.

Isn't chemical fertilizer meant to increase grain yield per acre?

What does it mean if it doesn't mean that?

Just as the two of them were pondering, Jiang Xinghuo's words seemed to be shattering.

"It's because without these things I said, Daming will not survive the Xiaoice River period in the future, and the country will die!"

The secret room next door.

Zhu Gaochi, the eldest prince who had just brought Xia Yuanji, the head of the household department, and Zhang Tianshi, the alchemy consultant, who had just come to listen to the class, was instantly dumbfounded.

The words and smiles of the three of them seemed to be stuck in their necks by the big hands that had been invisible, and they were directly speechless, interrupted at the moment.

Zhu Gaochi felt the sound of his heartbeat very clear in the silent and empty secret room.

He stared at Xia Yuanji with wide eyes, and Xia Shangshu was equally dumbfounded

"Xia Shangshu, what is the 'Xiaoice River Period'?"

"Your Highness." Xia Yuanji finally reacted and arched his hand, "The minister doesn't know about this matter, and the minister implores His Highness to write a letter to explain the reason to His Majesty after listening to the class, and the matter of the statue of the fertilizer immortal needs to be decided by His Majesty himself." ”

Zhu Gaochi took a slow breath and tried to calm himself down.

He looked at Zhang Yuchu next to him: "Zhang Tianshi is well-read, can he know what is the 'Xiaoice River Period'?" Why can Daming perish? ”

Zhang Yuchu felt a little ridiculous, just because of the words of the prisoner next door, would he be scared like this?

Even if Yuan Heng told him all kinds of miracles about Jiang Xinghuo yesterday, Zhang Yuchu hadn't experienced it himself after all, so he didn't really believe it in his heart.

But in the face of the eldest prince's question, Zhang Yuchu didn't dare to be fooled, so he had to say: "The minister really doesn't know, but other ministers don't dare to say it, say one or two on the other side, as long as it is recorded in the history books, and even the content in various miscellaneous books and notes, the minister must be able to think of it." ”

Zhu Gaochi also believes in this.

Zhang Yuchu is not bragging, but because Longhu Mountain started from the Five Bucket Rice Sect of the Three Kingdoms Zhang Lu, and has been passed down for thousands of years and has basically not been interrupted, and the books and knowledge accumulated by dozens of generations are very impressive.

Zhu Gaochi shook his head and said: "It's not that I don't believe in the knowledge of the two, but this matter does sound a little surprising, Mr. Jiang will never be untargeted, and there must be a reason for saying this." ”

He paused, and continued: "And no matter what the reason, based on Mr. Jiang's previous performance, we must pay attention to it, otherwise if it is really because of this 'Xiaoice River Period' that caused the demise of Daming, I don't know what is counted, and if we know inaction, it is another matter." ”

Xia Yuanji hurriedly said: "What His Highness said is extremely true. ”

Looking at Zhang Tianshi with a confident face, Zhu Gaochi planned that after today's lecture, once his father decided to reveal Jiang Xinghuo's fertilizer technology to the hundred officials, then he would try his best to promote what Zhang Tianshi said about "immortal descending auspiciousness".

After all, there are no immortals in this world, although Zhang Tianshi knows best, Zhang Tianshi and Yuan Zhenren have talked more than once, and it is estimated that Yuan Zhenren has revealed Jiang Xinghuo's suspected immortal matter to Zhang Tianshi.

Therefore, the elixir of chemical fertilizer invented by Jiang Xinghuo was called an immortal descending auspicious rui by Zhang Tianshi.

Thinking about this statement, it is also the result of Zhang Tianshi's careful consideration.

In other words, even Zhang Tianshi, the leader of the Dao Sect who knew best whether there were immortals in the world, directly recognized Jiang Xinghuo's status as an immortal.

Because according to Jiang Xinghuo's words, the chemical fertilizer is actually saving Daming's life!

After all, Jiang Xinghuo's chemical fertilizer has too much impact on the output of food crops, and if it can be promoted, the Ming Empire will definitely usher in a turnaround in the future - although this turnaround is still weak, but there is finally hope.

"Whew"

Zhu Gaochi sat on the chair and breathed a sigh of relief.

He thought to himself, "It's good to have hope, it's good to have hope." ”

And Zhang Yuchu still looked confident, not knowing at all that his proposal by mistake confirmed Zhang Tianshi's statement that Jiang Xinghuo was an immortal.

"Mr. Jiang, what is the Xiaoice Period? Why did this thing make the Ming Dynasty die? ”

On the other side, Zhu Gaoxu also asked anxiously.

Jiang Xinghuo didn't rush to answer his question, but asked rhetorically, "You can guess from the name, what does it mean?" ”

Li Jinglong said: "The zombie and lonely village does not mourn, and Shang Si is the national military wheel." Lying down at night to listen to the wind and rain, the Iron Horse Glacier fell into a dream, and it must be that the 'glacier' in the Xiaoice River period is the same as the meaning in Lu Fangweng's poem. ”

"Not bad."

Jiang Xinghuo nodded and said, "The Xiaoice River Period is a climatic phenomenon, and during the period when it occurs, the temperature will drop greatly and cause various disasters. Of course, it will only go down overall, and at some point, it will be a sharp fluctuation in temperature. ”

"Well, the temperature is how hot and cold you perceive."

"And the most intuitive judgment of the Xiaoice period is that rivers that do not freeze at all for hundreds of years become glacial rivers in winter."

"During the Xiaoice period, there will be heavy snowfall in the south, which never snows, and the north will freeze for thousands of miles, all the rivers and rivers will freeze, river transportation will be almost abandoned, and livestock, crops, and people will be frozen to death and frostbitten countless times. Under this low temperature, even in the Central Plains, boiling water will instantly freeze into white mist, trees and flowers will be completely sealed by ice, and people will feel cold and biting even if they wear several layers of clothing. ”

"This is the Xiaoice Age."

Almost instantly, Li Jinglong thought of the blow that this catastrophic weather would have on the country.

And Zhu Gaoxu blurted out: "Isn't that equivalent to a disaster year every year, and a fiscal -5 every year?" ”

Yes, this is the after-effect of the last time I played the game.

"It's not all." Li Jinglong also reflected on the painful experience of the last time, adding, "The reduction of grain production caused by the cold will trigger a series of chain reactions, such as the rising rebel army, and the continuous reduction of the national treasury will lead to the continuous reduction of various expenditures that should be maintained, thus entering the dead cycle of the country's demise." ”

The two of them have obviously experienced the difficulty of governing the country after the last immersive game.

As the saying goes, it's not easy for the better, and it's not easy for the bad.

It is still quite difficult to make the country's development thriving, but as long as you encounter something bad that can cause a chain reaction, you will fall into the quagmire of an endless cycle.

"There is one more consequence."

Jiang Xinghuo said lightly.

"What consequences?" Li Jinglong felt as if he had thought of everything he should have thought of.

"We're cold, our neighbors to the north are even colder, and the cattle and sheep are freezing to death, what do you think they'll choose?"

Zhu Gaoxu and Li Jinglong glanced at each other, and thought of four words at the same time.

- Nomadic southward.

At the same time, the next secret room.

"Is this possible?" Zhang Yuchu was stunned.

"What's impossible?" Xia Yuanji looked at Zhang Tianshi strangely.

"Ugh."

Zhang Yuchuxin said: Wasn't this old guy brainwashed by that Jiang Xinghuo? Why did Jiang Xinghuo say such a groundless thing, and he thought it was possible?

He was silent for a long time, and then couldn't help but raise his hand and rub his forehead.

"The problem is that Jiang Xinghuo's words have no basis."

What made Zhang Yuchu a little embarrassed was that the eldest prince Zhu Gaochi and the household secretary Xia Yuanji didn't pay attention to his reasonable suspicions at all.

Instead, the response was directly discussed.

It's like. Jiang Xinghuo's words about the future will definitely become reality.

"Your Highness, don't worry. Our Ming treasury is still very abundant, if it is only a few years of cold time, as long as it lasts for it. Xia Yuanji next to him comforted.

"No, it's definitely not enough." Zhu Gaochi shook his head suddenly.

Zhu Gaochi paused for a moment and said: "It's really a disaster year when the weather is severe and the grain production is reduced, and grain is hard currency, and the key is how much money can be exchanged for grain at that time?" If the cold really caused a series of chain reactions, such as floods and rebellions, and the imperial court would definitely allocate money, then the treasury would probably be insufficient by the autumn, and using the money to buy grain would only accelerate the collapse of the treasury. And now above the court, do you think you will really work with the country? Even if hundreds of officials can fulfill their duties, what about the corrupt officials below? Probably taking advantage of the country's troubles, not only will they not provide disaster relief, but will take the opportunity to cause chaos and seek personal gains, and this problem is very serious! ”

Xia Yuanji sighed and said, "It would be nice if we could destroy the Mongols." ”

"That's it." Xia Yuanji analyzed, "As long as there is no pressure from the Mongols to invade the south, even if the Ming Dynasty suffers a few years of internal disasters, it will not be impossible for the treasury to support it." ”

"The Mongols can't be destroyed." Zhu Gaochi shook his head, "The scope of the Mobei grassland is huge, although now their warriors are completely without the strength of their ancestors, but the grassland and desert they occupy are not something that the Ming Dynasty can occupy permanently. What's more, now that the Jingjing Disaster has just ended, most of the elite soldiers and famous generals accumulated in the Hongwu era have been lost, and it still needs time to recuperate, and only after recovering their vitality can it be possible to conquer Mobei. ”

Hearing this, Xia Yuanji nodded.

In fact, in a certain way, although the problem Jiang Xinghuo said is a little distant, it is real.

It must be known that the Han people were ruled by the Yuan Dynasty established by the Mongols for hundreds of years, and until today, they have always had a lingering fear of the Mongol iron horse. Moreover, although the Northern Yuan Dynasty is now divided, the Mongolian tribes still rule the huge grasslands, and the nobles of the second generation of the Northern Yuan Dynasty, who have experienced how prosperous the Central Plains are, still covet the rich Central Plains, and are resentful of the situation that they can only drink the northwest wind on the grassland.

Now, of course, Zhu Gaochi has to solve the problem raised by Jiang Xinghuo in front of him.

Generally speaking, if a winter cold spell breaks out, food prices are bound to skyrocket.

At that time, I am afraid that even if the national treasury is abundant, it will be difficult to guarantee that the country will not be affected, right?

Who knows when this Xiaoice River period that Jiang Xinghuo said will come and last for a few years? What if it lasts for 10 years?

"So, what does Your Highness think?" Natsuhara asked.

"I can only wait for Mr. Jiang's statement." Zhu Gaoji said helplessly, "Let's see what is the reason for this Xiaoice River period, when it will come in the future, and it will last for several years." ”

Zhang Yuchu thought to himself: If what Jiang Xinghuo said is true, the only way now is probably to pray to God to bless Daming.

"So what is the reason for the Xiaoice period?" Zhu Gaoxu scratched his beard and asked suspiciously.

"A reasonable assumption is that the world's currents and tides are changing."

Jiang Xinghuo explained: "This involves the knowledge of geography, the last time I told you about the so-called kamikaze in Japan, it is also included in this discipline, the flow direction of the ocean will also transfer heat, which will also cause temperature changes in the sky, and the temperature disturbance of the sea, land and air is actually affected as one." ”

Jiang Xinghuo paused slightly, trying to explain the flow of heat in words they could understand.

"In other words, at some point in time, due to the relationship between the ocean and the tides, the tides make the cold water in the ocean float up, and the sky absorbs the cold air of the ocean water, and it also becomes cold."

Jiang Xinghuo looked at the two of them, ready to give an example to explain if the two didn't understand.

I didn't expect the two students to be so stupid.

"Do you understand?" Li Jinglong asked Zhu Gaoxu.

Zhu Gaoxu nodded and said, "I can roughly understand the meaning, although I haven't been to the sea, I don't know how the temperature of the ocean becomes, but the reason is probably the same." ”

Zhu Gaoxu gave an example that he encountered most often when marching and fighting: "When camping at the bottom of the valley or at the foot of the mountain, the thieves are hot during the day and cold at night; When camping on a ridge or summit, it's not too hot during the day and not so cold at night. Therefore, since the wind can carry away heat, the change of cold and heat varies according to the altitude, so it is the same when you look at it in the sea. ”

Li Jinglong continued to deduce with understanding: "Since the wind can, then the water should also be able to take away the heat, the sea water in different depths in the ocean, the cold and heat must be different, if the tide causes the ice water under the bottom of the sea to gush up, then the sky is frozen, and frost and snow will fall on the land." ”

"And when I go to the West Lake cruise, I can clearly feel that the water on the lake is cold, and if I fish from the bottom of the lake, the water brought out from the bottom of the lake is even colder, which should not be bad."

The two of them nodded their heads, and they consciously deduced that there should be no problem.

Zhu Gaoxu said: "In this way, what Mr. Jiang said is very reasonable, but it is not clear why the tides change. ”

This is the root of the problem, why it was okay before, but it happened during the Xiaoice period, that is, because the tides caused the changes in ocean currents, which in turn caused the ocean to absorb heat and release cold air, causing the sky to become cold.

Li Jinglong thought for a while, and then added: "The changes of the tides are reflected in the history books, the stars, and the calendar, and in the past thousand years, there have indeed been several major stages of tidal changes. ”

Jiang Xinghuo was a little relieved.

This kind of relief is like watching your child finally grow up and be sensible, and at some point will think independently.

What a student I taught!

Needless to say now, the principle will be deduced based on daily life experience, and even inferences will be made.

In fact, the cause of the Xiaoice period has been debated, but before his crossing, the most reliable theory was the periodic fluctuation of atmospheric temperature caused by tides and ocean currents.

As for how the tides change, it is naturally related to the cosmic gravitational attraction between the moon and the earth, and this cosmic gravitational force will change due to the continuous change of the alignment of the earth, the moon and the sun, and will also be affected by the external influence of solar rays.

Before Jiang Xinghuo crossed, scientists had calculated the historical tide intensity through mathematical models, and each peak coincided with the extremely cold period of the Xiaoice River period, which initially showed that there is a necessary change relationship between the two.

Of course, with this kind of unsolved mystery, Jiang Xinghuo does not dare to guarantee 100% that this explanation will be correct.

But in any case, there is absolutely no doubt that the cause of Daming's demise is the Xiaoice River period.

"How many years does this tidal change phase usually last?" Zhu Gaoxu asked curiously.

"Generally, a few hundred years."

Jiang Xinghuo replied casually, this is all basic common sense for him.

Wait a minute.

Is there something not quite right?

Li Jinglong's eyes suddenly widened and looked at Jiang Xinghuo.

Jiang Xinghuo looked at his eyes and nodded.

"Jiang Jianglang, are you saying that this small, Xiaoice period will last for hundreds of years?"

"Of course."

"Then, when did the Xiaoice period of Daming begin?" Li Jinglong is a little tongue fighting when he speaks.

"It's already started."

The second chapter is still a little bit close, and it will come in a little while

(End of chapter)