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

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

[Seventh place: Cotton science popularization is completed.] 】

[3 minutes later, the sixth place in popular science: soybeans.] 】

Generations of people were accustomed to this scene.

Obediently waiting for new popular science content to appear.

While waiting, a huge question arose in everyone's minds.

What is the "credit mall" mentioned in the popular science video?

Is it like a street stall where you can buy things?

If so, what currency do you need to buy it in?

The crowd was puzzled.

[End of break.] 】

[Sixth place in popular science: soybeans.] 】

[Soybean is an annual herbaceous plant of the genus Soybeans in the legume family. 】

[Native to the Chinese region, it is cultivated all over the country and is widely cultivated all over the world. 】

[Soybean is one of the important food crops in China, with a history of 5,000 years of cultivation, and was called soybean in ancient times. 】

According to the color and grain shape of the seed coat of soybeans, they are divided into three categories: yellow soybeans, green soybeans (green beans), and black soybeans (black beans).

[The characteristics are as follows:].

[Soybean is 30~90 cm high, and the soybean stem is thick, erect, densely covered with brown long hard hairs. 】

[Leaves usually with 3 leaflets; pedicles veined, pubescent; petioles 2-20 cm long; leaflets broadly ovate, papery; racemes with short few flowers, long with many flowers; pedicels usually with 5-8 sessile, tightly packed flowers; bracts lanceolate, covered with rough hairs; small bracts lanceolate, covered with pubescent bristles; calyx lanceolate, flowers purple, lilac or white, base with petioles, wing petals cast-shaped. The pods are hypertrophied, slightly curved, drooping, yellowish-green, densely covered with long brownish-yellow hairs, 2-5 seeds, oval, nearly spherical, smooth seed coat, pale green, yellow, brown and black. 】

[The flowering period is 6~7 months, and the fruiting period is 7~9 months. 】

[Growth Habits:].

[Soybean is warm-loving, seeds begin to germinate at 10-12 °C, the most suitable is 15-20 °C, the appropriate temperature for growth is 20-25 °C, the appropriate temperature for flowering and pod-setting is 20-28 °C, the pod-setting is delayed at low temperature, and the plant cannot bloom below 14 °C, and the plant will end its growth early if the temperature is too high. Seed germination requires more water, and the soil moisture content is required to be 70%-80% during the flowering period, otherwise the flower bud shedding rate will increase. The fertilizer uptake of soybean before flowering is less than 15% of the total, while the flowering and podding stage accounts for more than 80% of the total fertilizer uptake. 】

This time, popular science.

There was not much reaction from the dynasties.

Soybeans were planted even in the Qin Dynasty, and no one questioned that they could rank sixth.

Qin Dynasty.

Inside the Xianyang Palace.

Ying Zheng just drove Hu Hai's rebel away, and then ordered someone to harvest the cotton.

The light curtain is popularizing soybeans.

"Shu, it is not surprising that it can be ranked sixth. "

Ying Zheng commented casually.

【Limited Time Q&A!】

[Tip: Please answer the following questions correctly within 1 minute.] 】

[May I ask which dynasty is closest to the origin of soybeans?].

[Option 1: Qin Dynasty].

[Option 2: Han Dynasty].

[Option 3: Three Kingdoms].

[Option 4: Yuan Dynasty].

[Option 5: Ming Dynasty].

Ying Zheng saw the pop-up window, and his expression froze.

Why is this question and answer not a rush answer, but an answer within a limited time.

Fortunately, the difficulty of the questions is not high.

The obvious answer is the Qin Dynasty.

"Your Majesty, it's option one, answer quickly. Li Si reminded on the side.

The other ministers were also flushed with anxiety.

It's literally bringing the benefits to your mouth, and you just need to open your mouth to eat it.

Ying Zheng relieved himself and replied loudly: "Option one!".

To his surprise, after several breaths, the light curtain did not react.

Could it be that the emperors of other dynasties have already preemptively answered?

Ying Zheng thought in his heart, and shouted an answer to the light curtain again.

Until the countdown ends on the pop-up window.

[Time is over.] 】

[Congratulations to the emperors of all dynasties for completing the limited-time Q&A, reward: the whole process of soy product production. 】

Followed by.

A paper book appears on the ground.

Ying Zheng stepped forward to pick it up personally.

As soon as he started, he sensed that something was wrong.

It can be written, but it is not cloth and bamboo slips.

He looked at Li Si and puzzled: "Prime Minister, come and see what this is, why can it be written on it, and it is so thin." "

What insight Ying Zheng is.

In just an instant, he discovered that the biggest reward this time was not the whole process of soy product production at all.

It's something in his hand that can write words.

When Li Si heard the summons, he immediately stepped forward.

"Your Majesty, the ministers are here. "

He looked at the books.

The handwriting on it is clear, and the text is neatly typeset...

What shocked him the most was that he could write on both sides!

Li Si was surprised: "Your Majesty, this is probably the biggest reward this time, not the words on it." "

"Haha, the prime minister and the widow have thought of a piece. "

Ying Zheng laughed heartily.

If you can figure out the material of the written item in your hand.

It can completely replace bamboo slips.

Ying Zheng thinks about the twists and turns he deals with every day, and he has a headache.

The Qin Dynasty used bamboo slips for all the folds.

It was no match for the object in his hand, not only was it heavy, but there were very few words carved on it.

In order to be able to carve more content on the bamboo slips, the characters on them are usually as small as they can be.

Every time he looked at it, his eyes were uncomfortable.

I am afraid that the only advantage of bamboo slips is that they are resistant to storage ......

I can't think about it, go on, he doesn't want to deal with tomorrow's twists and turns.

Ying Zheng dispelled his cranky thoughts.

"Show me, Prime Minister. "

"Amazing, how the hell is this thing made?".

"Prime Minister, even you can't understand it?"

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

Many ministers gathered in front of the books to express their opinions.

Li Si was blushed by the noisy discussion around him.

In terms of knowledge.

There was almost no one in Great Qin who could compare to him.

But the light curtain in the sky can always come up with novelties that have never been seen before.

This made him, who has always claimed to be erudite, embarrassed.

I can't wait to dig a hole in the ground.

"Father, the son asks the father to let the craftsmen of Daqin see this thing together, and seek benefits for the students of the world as soon as possible. "

Fusu didn't know when he appeared.