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

Rest time is fleeting.

The silent light curtain reacted again

【The ten crops with the greatest scientific contribution to mankind!】

【Let’s start with the fourth place in popular science: corn!】

【Corn, also known as corn, reed, corn, corn, cob, corn, corn, reed, corn, and maize cob】

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

【Corn is a root crop. The underground node roots are the main part of the root system and are deeply embedded in the soil. The stem is composed of nodes and internodes, which is cylindrical and has a hard tissue. Corn leaves are composed of leaves and leaf sheaths. The inflorescence is monoecious; the seeds 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 of corn per mu can now reach about 1,500 kilograms.】

【It is one of several high-yielding crops recognized in the world】

【......】

Qin Dynasty.

Ying Zheng was numb.

Why is it America again!

Last time the sweet potatoes were in the Americas, this time the corn is still in the Americas.

The key point is that each of these two crops is amazingly large.

Such a comparison.

Da Qin's staple food, corn, was simply not enough.

Zhao Gao understood Ying Zheng's mind and admonished:"Your Majesty, I have the courage to make a suggestion and build a huge ship. Once we know the location of America from the light curtain, we will send people directly there."

Li Si thought for a while and added:

"Your Majesty, I think it is feasible. Even if America cannot be found and a few more continents are discovered, Great Qin can expand some of its territory."

As the right-hand men of the Qin Dynasty, the two men united on the front line at the critical moment.

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

There stood a veteran.

It was Wang Jian. He did not go to court at all on weekdays.

Now he is here too Arriving at the palace,

Ying Zheng shouted,"Wang Jian, what do you think of this matter?"

Wang Jian, who originally wanted to fish, saw that he was discovered, so he could only quickly come to Ying Zheng.

He bowed and replied:"Your Majesty, I think what the two adults said is absolutely true."

There are several people who support me.

Ying Zheng looked at the officials and said in a deep voice:"I have passed the imperial decree to build a huge ship and recruit sailors immediately."

"yes!"

The Qin Dynasty had a strong mobilization ability, and there was an atmosphere of an army throughout the country.

The next day, the shipbuilding craftsmen had already started working.

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

Han Dynasty.

Liu Bang looked shocked.

America is blessed with many blessings.

Two high-yielding crops have emerged.

At the same time, an idea came to his mind.

Is there a great power in America?

After all, if one place has 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 and showed the gentle smile he had when we conquered the world together,"Han Xin, I want to recruit 100,000 elite soldiers across the country. What do you think?"

Han Xin was stunned when he was named.

Then he said ecstatically:"Yes! The more troops the better."

He was worried that he had nothing to do recently................................

Shu Kingdom.

Liu Chan looked at the light curtain in the sky and had thoughts in his mind.

I'm so envious.

If America were given this wonderful land to me, wouldn’t I be able to eat, drink and have fun better?

At that time, playing with the palace maids every day, fighting crickets and cocks with the ministers and eunuchs, would be a happy thing.

As for domestic government affairs, you can safely leave them to your father-in-law.

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

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

‘It seems that I have to fight again this time! '

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

Tang Dynasty.

The sweet potatoes Li Shimin just received are not yet warm.

As a result, I saw corn on the light screen.

This guy has a stick full of seeds!

And it's bright yellow, which makes it look lovely.

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

It was gray and autumn, and it was still covered with mud.

Li Shimin wants to exchange sweet potatoes for corn............................

Song.

Zhao Kuangyin looked at the picture of corn and felt that it was destined to him at first glance.

"I am bound to win!"

【Popular science continues】

【Regarding the introduction of corn varieties into our country,"Chinese Corn Varieties" said:"Corn was introduced from Europe in the first half of the 16th century.】

【However, recent discoveries show that corn was introduced into my country obviously earlier than the Ming Dynasty】

【Here are some examples: Volume 2 of Yuan Jiaming's"Dietary Instructions: Cereals":"Maize is wheat, sweet in taste and mild in nature." Volume 5 of Yuan Li Dongyuan's"Food Materia Medica: Grains":"Maize: a jade sorghum, grown in the western soil. The leaves of the seedlings are all like sorghum, fat and short, and also like coix. The seedlings are three or four feet high. They bloom and produce ears in June and July, like wheat. There is a bract in the armpit of the seedling, like a brown fish, with white whiskers on the bract. It hangs down. After a while, the buds will be peeled off and the seeds will come out, and they will cluster together. The seeds are also as big as rice dumplings and are yellow and white in color. They can be fried and eaten."】

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

【It's just that the rulers at that time didn't care and didn't cultivate it carefully. They probably just regarded corn as an ornamental plant.】

【......】

Ming Dynasty.

Zhu Yuanzhang was surprised at the corn yield at first.

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

He felt fond of it.

But when he saw the second half of the science popularization, his expression changed!

What the hell?

Corn appeared in the Yuan Dynasty!

Zhu Yuanzhang's face turned red and he said angrily:"We are so angry! Corn appeared in the Yuan Dynasty, but the damn Yuan people didn't care! Otherwise, if corn is popularized, our parents, brothers and sisters will starve to death?"

Come on.

In his heart, the sins of the Yuan Dynasty were increased by one!