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

Breaks are fleeting.

The silent light curtain reacted again.

[The ten crops that have made the greatest contribution to mankind in popular science!].

[Start the fourth place in popular science: corn!].

[Corn, also known as maize, baolu, jade, bud, cob, corn, yumai, reed, baogu, mashu cob. 】

It is an annual herbaceous crop plant of the genus Maize in the Poaceae family. 】

[Corn belongs to the root crop, the underground node root is the main body of the root system, deep into the soil; the stalk is composed of nodes and internodes, cylindrical, hard tissue; corn leaves are composed of leaves and leaf sheaths; the inflorescence is monoecious; the kernels are often yellow, white, purple. 】

[Corn blooms from July to August and bears fruit from August to October. 】

Corn originated in central and southern America. 】

[After thousands of years of cultivation, the yield per mu of corn can reach about 1,500 catties. 】

It is recognized as one of several high-yield crops in the world. 】

【......】

Qin Dynasty.

Ying Zhengren is numb.

How is it America again!

Last time the sweet potato was in the Americas, this time the corn is still in the Americas.

The key is that each of these two crops is surprisingly large.

Such a comparison.

Daqin's staple grain, corn, is not enough at all.

Zhao Gao understood Ying Zheng's thoughts, and admonished: "Your Majesty, the minister has the courage to speak up, build a huge ship, and once he knows the location of the Americas from the light curtain, he will send someone directly." "

Li Si thought for a moment and added:

"Your Majesty, the minister thinks it is feasible, even if you can't find the Americas and discover a few more continents, Daqin will be able to expand part of the territory. "

As the right-hand men of the Qin Dynasty, the two were unified at the critical moment.

Ying Zheng did not respond immediately, but looked in one direction.

There was a veteran standing there.

It was Wang Jian who didn't go to court at all on weekdays.

Now he is also in the palace.

Ying Zheng shouted: "Wang Qian, what do you think of this?"

Wang Qian, who originally wanted to touch the fish, saw that he was discovered, so he could only walk quickly to Yingzheng.

He bowed down and replied, "Your Majesty, the old minister thinks what the two adults said is very true. "

There is the support of several people.

Ying Zheng looked at the hundred officials and said in a deep voice: "Spread the holy decree of the widow, and immediately start building a huge ship and recruiting sailors." "

"Yes!".

The Qin Dynasty had a strong ability to mobilize, and the whole country was filled with an atmosphere of an army.

The next day, the craftsmen of the shipbuilding had already begun their work.

The sailors recruited were selected through layers of selection, and in the end, only 300 elites were recruited.

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

Han dynasty.

Liu Bang's expression was shocked.

The Americas are blessed.

Two high-yielding crops have emerged.

At the same time, an idea crossed his mind.

Is there a great power in the Americas?

After all, if one place monopolizes two crops that are comparable to divine food, even a pig can develop a powerful civilization, right?

If this is the case, will it threaten the Han Dynasty that he established.

The more he thought about it, the more uneasy he became.

Liu Bang looked at Han Xin in the audience, showing a gentle smile when he once won the world together, "Han Xin, I want to recruit 100,000 elite soldiers across the country, what do you think?"

Han Xin, who was named, was stunned.

Then he said in ecstasy: "But, the more troops the better." "

He's worried that he has nothing to do lately.

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

Shu.

Liu Chan looked at the light curtain in the sky, and his mind was full of thoughts.

I'm so envious.

If this good place in the Americas was given to me, wouldn't I be able to eat, drink, and be merry?

When the time comes, it is a beautiful thing to play with the palace maids every day, fight crickets and cocks with ministers and eunuchs.

As for domestic affairs, it is completely safe to hand over to the father-in-law.

There are two crops, sweet potatoes and corn, and the population of Shu can increase several times in less than 20 years.

When that time comes, what will Wei and Wu do to fight with him?

'Looks like I'm going to fight again this time!'

Liu Chan's heart rose with infinite fighting spirit, in order to be able to better salt, he must work hard to defeat the emperors of other dynasties.

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

Tang dynasty.

The sweet potatoes that Li Shimin just got in his hands were not yet hot.

As a result, you can see the corn on the light curtain.

This guy has a stick full of seeds!

And it's yellow, and it looks pleasing.

Take another look at the shape of the sweet potato....

The ashes are not slippery, and they are still full of dirt.

Li Shimin wants to exchange sweet potatoes for corn.

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

Song dynasty.

Zhao Kuangyin looked at the picture of corn, and at first glance, he felt that this thing was related to him.

"I'm bound to win!".

[Popular science continues.] 】

[On the issue of the introduction of corn varieties into China, the "Chronicles of Chinese Corn Varieties" says: "Corn was introduced from Europe in the first half of the 16th century. 】

[However, recent discoveries show that corn was introduced to China before the Ming Dynasty. 】

[Here are some examples: Yuan Jiaming's "Dietary Instructions: Cereals" Volume 2: "Maize is cheat, sweet and flat. Yuan Li Dongyuan's "Food Materia Medica: Grain Department" volume 5: "Maize: A jade sorghum grows in the western soil. Its seedlings and leaves are like millet and fat and short, and they are also like coix. The seedlings are three or four feet tall and bloom in June and July, like wheat. The axils of the seedlings have a bud, such as a brown fish shape, and the white whiskers hang down on the bracts. After a long time, the buds will be dismantled, and they will be clustered together. The seeds are also as big as the yellow-white rice dumplings, which can be fried and fried. "】

[It can be seen that corn was discovered before the Ming Dynasty. 】

[It's just that the rulers at that time didn't care about it and didn't cultivate it carefully, and it is likely that they just regarded corn as an ornamental plant.] 】

【......】

Ming dynasty.

Zhu Yuanzhang was surprised at the yield of corn at first.

There are hundreds of seeds on a stick, and the key is that each one is bigger than a bean!

He liked it tightly.

But when he saw the second half of popular science, his face changed!

What the hell?

Corn appeared in the Yuan Dynasty!

Zhu Yuanzhang's face turned red, and he said angrily: "I'm angry with us! Corn appeared in the Yuan Dynasty, and the damn Yuan people don't really care! Otherwise, if corn is popularized, our fathers and brothers and sisters will starve to death?"

Come on.

In his heart, the sins of the Yuan Dynasty are added to one!