I make a popular science video and all the emperors learn from it!

Tang dynasty.

Li Shimin's eyes were full of longing.

He thought that the Tang Dynasty was prosperous enough.

Compared with the present and later generations, the Tang Dynasty is far inferior.

The high-rise buildings shown in the video and the living conditions of ordinary farmers.

It is not difficult to reveal how prosperous the future generations were!

Even the most ordinary peasant in a country can live in a two- or three-story house with completely no patches on his clothes.

He didn't even see a person with a yellow face and thin muscles.

This almost impossible scene in all dynasties really appeared in later generations.

...................................

Song dynasty.

Zhao Kuangyin's expression was sluggish.

As soon as he made some achievements in China, he was complacent.

Compare it with the country of later generations.

Completely incompetent himself.

At the same time, a great sense of loss enveloped his heart.

How hard do you have to work so that the Song Dynasty can reach the level of later generations?

How many hundred years?

Or thousands of years ......

..............................................

Ming dynasty.

Zhu Yuanzhang stared straight at the video.

He wanted to get into the video.

One acre of land grain is 1200 catties!

As far as the eye can see, a village has at least a few thousand acres of land.

If it is extended to the whole country, how much grain can be harvested in a year.

How many people can be fed?

His fingers were a little too good to count.

Zhu Yuanzhang grabbed Li Shanchang and asked excitedly: "Prime Minister, you come to calculate for us, how many people can be fed by a year's grain in the next generation?"

Li Shanchang has not recovered from the shock.

Inquiries are heard.

He recalled what he had seen earlier.

1,200 pounds per acre.

National .......

It's .......

He can't figure it out.

The numbers are too huge.

Li Shanchang twisted and pinched, and after a long time, he replied: "This, Your Majesty, according to the old minister, there will definitely be more than one crop of wheat in the future." "

"Plus several crops that were popularized before. "

"According to the land area of the Ming Dynasty, the country of the future generations can support at least 40,000 people!".

This is still his conservative estimate.

"What!".

"Forty thousand people, this must not be all over the mountains and all over the wilderness. "

Zhu Yuanzhang flax froze.

40,000 people!

It will be possible to empty his daimyo's treasury in a few days!

Can the future really feed so many people?

"We're really scared. Zhu Yuanzhang gasped.

Really put 40,000 people in the current Ming Dynasty.

Within a few months, the Ming Dynasty was directly eaten to the death.

【Limited Time Q&A!】

[Please complete the answer within 30 seconds of the allotted time.] 】

[What is the role of chemical fertilizer in the video?].

[Option 1: Assist in praying for rain].

[Option 2: Pest control].

[Option 3: It's useless, just play].

[Option 4: Increase wheat yield].

The pop-up window that suddenly appeared startled Zhu Yuanzhang!

"Fertilizer?".

His mind was racing.

But I just can't remember, which part of the video says about fertilizer?

What the hell is it!

Zhu Yuanzhang was so anxious that his forehead sweated.

Countdown to the pop-up: 27... 26...13...7...

Seeing that Zhu Yuanzhang has not answered.

Zhu Biao on the side shouted loudly: "Father, it's option four! Answer quickly!".

"Oh, yes, option four!" Zhu Yuanzhang shouted out the answer at the last second.

[Correct!].

[Hint, except for Emperor Kangxi of the Qing Dynasty: Aixin Jueluo Xuanye, all the emperors of other dynasties answered correctly. 】

[Reward 1 ton of high-yield fertilizer!].

The next second.

Fertilizers piled up as high as a hill appeared in the Imperial City.

Zhu Yuanzhang performed a wave on the spot, and quickly changed his face.

In the last second, he was still so anxious that his face was red.

In the next second, he smiled directly.

"Hahaha, okay, Biao'er, it's all up to you this time, we almost missed the reward. "

Zhu Yuanzhang patted Zhu Biao on the shoulder.

More satisfied with this son.

"This is what a retainer should do. Zhu Biao replied with a smile.

Zhu Yuanzhang came to the rewarded fertilizer.

Drawing the long sword from the waist of the guard, he sliced open the bag with a sword.

Bang la blah.

Round white particles spill.

Zhu Yuanzhang picked it up from the ground suspiciously and sniffed it.

"This is chemical fertilizer, a good thing that can increase crop yields?"

Zhu Biao reminded: "Father, I'm afraid you have forgotten that the farmers in the previous video sprinkled this kind of white thing before it rained. "

He remembers it vividly.

This is what the peasants sprinkle into their fields before it rains.

At the time, everyone was angry at what they had done, ignoring the fact that it was fertilizer.

"Yes, yes, we remember. Zhu Yuanzhang suddenly realized and muttered: "Sprinkled into the ground before the rain, this is a good thing, and it was actually given so much." "

Happy.

He thought of an unlucky emperor who didn't get a reward.

What is it called Kangxi in the Qing Dynasty?

This guy is really losing a fortune.

No, why haven't we heard of any Qing Dynasty!

Zhu Yuanzhang suddenly discovered a very serious problem.

Immediately brought in a few ministers.

"Have you seen it, it says Kangxi of the Qing Dynasty, this Qing Dynasty is that dynasty, why don't we have an impression at all?".

Several of the ministers who had been brought in looked at each other.

After a moment, Qi Qi's pupils shrank.

That's right.

What kind of dynasty is this Qing Dynasty!

"Your Majesty, I... I haven't heard of it at all, and it is estimated that it is a dynasty after the Ming Dynasty. "

When several people said this.

I was almost scared to death!

"Our dynasty after the Ming Dynasty!" Zhu Yuanzhang roared angrily: "Aixin Jueluo! As soon as we hear the name, we know that it is the regime of the grassland people!"

"We guessed correctly, the grassland people have always been thinking about the Ming Dynasty that we worked so hard to establish. "

"It's really a thief's heart that doesn't die, a thief's heart doesn't die!".

"When we restore the livelihood of the people in the country, we will definitely raise troops to eradicate you. "

Zhu Yuanzhang was so angry that he jumped like thunder.

He knew who Da Ming was dying.

Now that you know the final answer. ，

With his character, it is absolutely necessary to eradicate the threat in advance.

Xu Da, Chang Yuchun, Lan Yu and others knelt down together and shouted: "We will share your Majesty's worries and eradicate the remnants of the Northern Yuan!"