The short videos I watched from all dynasties

【Hybrid rice, now we can have enough food. 】

【…

"If we understand what factors cause weeds to grow wildly, we can also increase rice yields like weeds."

...

Finally, we achieved a yield of 1,000 kilograms per mu.

As yields continue to increase, the rice fields are filled with golden rice.

It is this technology that has enabled the Chinese people, who once suffered from hunger, to now firmly hold on to their rice bowls.

From 1976 to 1988, the cumulative hybrid rice planting area in the country was 12.56 billion mu, with a cumulative increase in rice production of more than 1000 billion kilograms and an increase in total output value of more than 200 billion yuan.

In 1995, the two-line hybrid rice began to be produced on a large scale, and the average yield per mu increased by about 10% compared with the three-line method.

By 2006, hybrid rice had been planted on more than 55 billion mu of land, adding more than 5000 billion kilograms of rice.

从突破700公斤、800公斤、900公斤、1000公斤，到2023年10月的1251.5公斤，在各地的示范田里，杂交水稻大面积亩产的世界纪录不断刷新。

According to statistics, the increased grain production from hybrid rice can feed nearly 100 million more people each year.

...

"My greatest wish in life is to free mankind from hunger and to let everyone in the world have enough food."】

＜Eternity＞

＜Now we can have enough food, but we also need to increase the grain yield per mu. [Like]＞

＜May starving people no longer fall into this world [bless]＞

＜The god who controls food among humans.＞

＜Before: What to eat today?

Now: What to eat today? ＞

＜You can be picky about food now, but don’t forget why you had a full meal today.＞

＜It is really important to understand the relationship between male sterility and hybrid rice＞

＜Many scientists believed that natural hybrid rice is the result of the male stamens pollinating the female pistils, and that rice flowers are not only hermaphroditic, but the two stamens are also very close together. If one wants to artificially change the way self-pollination works, the best thing to do is to find male sterile plants and allow the two rice plants with good genes to hybridize.＞

......

Li Ranran saw another video below which was talking about famine in ancient times.

Why did famine often occur in ancient times?

[Natural disasters can cause land to become barren. Due to the limitations of science and technology and the lack of modern weather forecasting technology, it is difficult to effectively respond to extreme weather such as droughts, floods and other natural disasters.

In ancient times, the phenomenon of land annexation was serious, unowned land increased, and farmers were landless. At the same time, farmers had to bear heavy taxes and corvée labor. The agricultural tax system in ancient times changed with the change of dynasties. The Qin system nationalized both land and population and levied taxes on all land and population. The Han system of rent and tax levied taxes on farmers' labor and land separately. The Tang system of rent and tax levied taxes on farmers' labor and land together. The Song Dynasty's two-tax system was divided into two parts: land tax and capitation tax. The end of agricultural tax was in modern China in 2006, when agricultural tax was completely abolished, ending the agricultural tax system that lasted for more than 2600 years.

Ancient agricultural technology was backward, farming methods were inefficient, and there was a lack of fertilizers, pesticides, irrigation technology, etc. Ancient water conservancy projects often caused civil unrest due to the high labor costs and high costs of the people.

There are also many man-made factors such as war. War will lead to a reduction in labor force, damage to agricultural production, and sometimes the government will impose excessive taxes, which will aggravate food shortages. 】

＜There was a great famine and people were cannibalizing each other＞

＜In fact, the farming methods and technologies in ancient times have been constantly improving, but they could not resist natural disasters and man-made disasters [sigh]＞

＜Now that I think about it, we ate almost everything because we didn’t have enough to eat before [covering face]＞

＜There are four main reasons that are currently recognized for solving the world's food problem: the production of fertilizers, the emergence of pesticides, the increase in food variety, and the use of mechanization.＞

＜You can take a look at the painting of abundant grains and peace by Li Di of the Song Dynasty. The meaning of the painting is "the granaries are full in the autumn harvest, so there is no need to worry about the number of birds on the tiles." However, the rice in the painting is too small compared to the rice today＞

＜If someone were to grow something like this now, they would be laughed at to death [laughing]＞

＜I feel that the abolition of agricultural tax is a policy that will greatly reduce the burden on farmers and increase their enthusiasm for production.＞

＜In ancient times, fertilizers were basically lime fertilizer, green manure, bone meal fertilizer, plant ash, sulfur fertilizer...＞

＜In ancient times, when famine occurred, it would become a normal thing for farmers to flee. The journey was difficult, and people encountered food shortages during the journey in order to survive. The victims would eat the dead and buried bodies...＞

＜Alas, the main reason is that there is not much to eat. Unlike the potatoes, corn, and sweet potatoes that are later＞

＜At that time, only a small number of people controlled absolute resources, so the distribution was seriously uneven.＞

......

When Li Ranran saw the comment [There was a severe famine and people were eating each other], she felt as if her whole body was stung.

People from all walks of life in the modern world finally understand why modern China can feed more than one billion people, they can have enough to eat, and their grain yield is 1,000 kilograms per mu!

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Qin Shi Huang's Thirty Years

Qin Shi Huang Ying Zheng was very happy. Even if he didn't have the technology now, it didn't mean he wouldn't have it in the future. Even if he didn't reach the level on the light curtain, it would be good to have one of them.

The farmers have to do something.

Li Si, Xiao He and others analyzed the various issues raised by the light curtain together.

"Natural disasters are inevitable, but man-made disasters are. Now that the Qin Dynasty is unified, developing agriculture will surely make the people of the six former kingdoms submit."

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Han Dynasty, the fifth year of Yuanshou

At the beginning of the year, Emperor Wu of Han, Liu Che, ordered the counties to mint Wuzhu coins, and Zhang Qian returned from his mission to the Western Regions, bringing back grape seeds.

Zhang Qian offered advice to Emperor Wu that an alliance with the Wusun Kingdom could cut off the right arm of the Xiongnu, and he suggested to Emperor Wu of Han that he should win over the Wusun Kingdom.

When the Xiongnu learned of this, they wanted to send troops to attack the Wusun Kingdom. Now the Wusun Kingdom's envoys also came to the Han Dynasty to request an alliance.

"I am proposing marriage on behalf of our king. We hope that our two countries can form an alliance through marriage." The envoy of the Wusun Kingdom was stating the purpose of his visit to Chang'an.

"I have heard the envoy's words. I hope the alliance between our two countries will go smoothly." After saying that, he sent someone to send the envoy of Wusun back to the Manyi Residence.

The reason why Liu Che did this was entirely because today was the day when the light curtain was opened again. From the news brought back by Zhang Qian, he knew that not all countries had the light curtain. Currently, only the Han Dynasty and the previous Xiongnu had the light curtain.

...

After the video on the light screen was played, the Han officials could not control their expressions at all.

"The light curtain said... the yield per mu is 1,000 kilograms?!"

"Pollination? Hybridization?"

“I didn’t understand a single one…”

“And what are those farming methods?”

“Is the land in the picture used for farming?”

"Empress! Quickly draw the picture shown on the light curtain!" Liu Che could not remain calm either. The impact brought by the light curtain today was too great.

If there really was such rice, how could the people not have enough to eat? In that case, internal stability and external expansion would be much easier.

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Tang Dynasty, the third year of Zhenguan

In March of the third year of Zhenguan, Li Shimin appointed Fang Xuanling as the left servant, Du Ruhui as the right servant, and Wei Zheng as the right chancellor as the secretary supervisor, allowing them to participate in the government.

"I have decided to send troops to attack the remaining Turks again this year."

Although the Tang Dynasty had defeated the Turks in the second year of Zhenguan, their remaining forces had not been eliminated. For this reason, Li Shimin decided to completely destroy the Turks this year!

Let the Turks no longer be a threat to the Tang Dynasty!

Just as the military generals were discussing how to deploy troops and vying for the position of commander-in-chief, and the civil officials were discussing where to transfer food and how to resettle prisoners, the light curtain reappeared.

So everyone put down what they were doing and started watching the light curtain.

"..."

"..."

Fang Xuanling and Du Ruhui looked at each other, both seeing surprise and astonishment in each other's expressions.

The Tang Dynasty's rulers and ministers were silent for a moment, absorbed in the beautiful scene shown in the light curtain.

It was General Cheng Yaojin who spoke first: "It would be great if we in the Tang Dynasty had this technology!"

"Do you understand what the light curtain said?" Li Shimin looked at several civil officials and asked.

"Well... the light curtain also said that the level of technology in our time is low, and it would be difficult to reach the level of the light curtain's technology."

Du Ruhui sighed. The vision was good, but he didn't know whether this method could work in the Tang Dynasty.

"We can call upon experienced farmers from the public to conduct experiments."

Wei Zheng put forward his own suggestions.

"Is the agricultural tax system listed in the light curtain going to get better as time goes on?"

Li Shimin looked at the light screen with emotion. A prosperous age is one in which even the common people at the bottom of society can have enough to eat.

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System 999 has opened up sharing permissions on the light curtain, enabling “cross-time and space sharing”.

Some people placed the drawn farm tools on the light curtain, while others placed books such as "Qimin Yaoshu" on it.

When someone asked what potatoes and sweet potatoes were, the Qing dynasty explained their confusion.

Some dynasties also began to prepare for going to sea.