Live broadcast: Ancient people accompany me to make up lessons

Zhu Di listened carefully and asked the historian next to him to forget about him and remember Tianmu together.

It is imperative for Zheng He to go out to find corn, but the yield of corn recovered is currently only a few hundred kilograms, which is very different from the yield of later generations. We need to take a closer look at what the later generations did, and wait for them later. I definitely need to find someone to cultivate it.

[In the 19th century, Henry Wallace, an American born in a farmer's family, focused on the advantages of corn hybrid breeding. By the 70s, the corn hybrids bred by Wallace had achieved a corn yield of 2400 pounds per mu. The highest record in world history.

"The so-called corn hybrid, in layman's terms, is the cross of paternal line A and maternal line B, paternal line C and maternal line D respectively to produce S-generation hybrids. The S-generation hybrids need to be repeatedly planted more than ten times. The traits of each branch will be consistent and of good quality. of inbred lines.

Then such inbred lines are combined with each other again to produce F1 generation hybrids. The F1 generation hybrids have to be sown and harvested several times to conduct comparison tests to compare themselves with themselves to select hybrids with excellent qualities. Product comparison test, preliminary test, regional test, production test, final approval and promotion, becoming a corn seed sold on the market. "

Under the high-definition lens, the green plants slowly grow upward, forming strips and ears, and the huge corn kernels are crystal clear and plump. ]

Zhao Guo understood. Just like hybrid rice, you need to select a good site and quality, then record the detailed values, and select and breed based on different traits from generation to generation, and finally breed the best.

These final finished seeds also require several rounds of review before they can finally be planted by farmers.

It is a major matter related to food. It is reasonable for later generations of the court to be so cautious. Even if they know that it may be a high-yielding crop, they still need to have so many monitoring procedures, but in the end it will be sold on the market...

Many people are wondering, should such important seeds be released and sold like this? Shouldn't it be distributed uniformly by the imperial court?

"If they can be bought and sold at will, then why can't future generations just go to the United States to buy seeds?" Why should we have to work hard to breed seeds ourselves, when wouldn't it be better to use those bred by others?

Someone retorted: "How do you know that the seeds they sell to you must be good seeds? What if you plant them all and they all end up dead?"

Some people also said: "It will degrade. As I said before when talking about rice, seeds need to be cultivated. Over time, the function of conscience will degrade. If you buy seeds, you will continue to buy them in the future. This is not giving money to others every year. ."

Many people nodded in agreement: "That's right. If you buy other people's seeds, doesn't that mean you have to look at the color of other people's seeds?"

[“For a new corn variety, from the initial selection to the stable variety, the chance of success is only one in 120,000. And Li Denghai, who is in his twenties, is looking for his dream in this one in 120,000 chance of success. .

There was no decent laboratory or standard scientific research equipment. Li Denghai and eight people from the agricultural science team used the vast land as a laboratory with only one cow and one acre of land.

In order to get fertilizer, he led people to dig holes in beds, demolish houses, and dig out cesspools; in order to seize the farming season, he harvested wheat, prepared fields, and sown corn, often working day and night. "

In the black-and-white photos and scenes, several young people are building a frame together, bending down to sow seeds in the field, and holding pen and paper to record the budding land.

"Artificial pollination of corn hybrids must be carried out when the weather is hottest. In order to catch the best pollination time at noon in summer, he braved the high temperature of more than 30 degrees and went into the corn field to observe, record and analyze one by one."

Li Denghai's neighbor, an ordinary villager in Houdeng Village, is a dark-skinned, gray-haired, rural old man with good energy.

He sat among the corn cobs being dried and talked about the hardships of that time.

"Without mechanization, you can only give him an ox, a plow, and a columbine, which are all human power. People pull, people rake, and people work, they are all human..."]

Whether it is Li Denghai or the team he leads, everyone is an ordinary person in this small village in Laizhou, a native farmer's child, and they only went to middle school.

They are like this, but they can get together, not afraid of hardship, not afraid of fatigue, and work hard in the fields in order to cultivate high-yielding corn.

Many farmers sighed.

Farming is so tiring. They are a little better than Li Denghai. Maybe they don't need to artificially pollinate corn in the middle of the day, and they also need to use a notebook to observe and record.

Some people are also wondering, if there is only one cow in one acre of land, it is quite good. Who is doing the work without people doing it? Is it possible that in the future, they will not need people for farming?

[Research on corn hybridization and high yield is not easy for Li Denghai, who only has a junior high school education.

In 1974, Li Denghai had the opportunity to study at Laiyang Agricultural School. He was so hungry for knowledge that he completed the four-year course in one year.

The teacher with glasses and gray hair recalled to the camera that at that time, Li Denghai followed him all day long and worked in the fields on weekends. He was in the fields for more than eight hours a day, carrying a pencil and notebook with him. What did the teacher say to him? Write down everything you think is important.

Teacher Liu Enxun liked this studious rural youth very much and gave him 20 grains of precious foreign corn breeding materials when he graduated.

With these twenty precious seeds, he returned to his hometown and began to cultivate his own hybrid corn.

"Compared to flat corn, so-called compact corn overcomes the limiting factors of flat corn in achieving high yields. It is suitable for dense planting and has unique advantages."

The green corns are planted closely together in rows, much taller than any person. Li Denghai introduced the advantages of his compact corn to everyone in the cornfield he planted.

The flat corn leaves are spread out, and many leaves overlap each other, while the compact corn plant shape and leaves are all upward, and the leaves under the ear are slightly flat, allowing for better sunlight exposure, better ventilation and light transmission. ]

Some people who could read and were good at farming kept taking notes. Although they don't have corn, they have many things in common. For example, crops need sunlight to grow.

Although at first glance I don’t quite understand the relationship between temperature, leaf stomata closure and photosynthesis, once I write it down and read it later, I will understand that it is because it is too hot and the leaves cannot breathe and have no strength to bask in the sun for photosynthesis. , so the leaves should not cover each other, maintain ventilation, cool down, and make better use of sunlight.

During the Kangxi period, a small number of Laizhou people who were already growing corn felt proud and distressed when they heard the accents of their future descendants' hometown, and unspeakable complex emotions surged in their hearts.

[The camera cuts to another compact cornfield filled with upward-facing leaves. An old farmer in red clothes is walking through it, looking at the corn leaves very intently.

"In Songkou Village, Pingyuan County, Dezhou City, 74-year-old Song Qingkui has also been dealing with corn all his life. His decades of planting experience have made him, like thousands of farmers, cautious in selecting improved seeds.

Because his land is adjacent to the experimental field of Denghai Seed Industry, and seeing the high yield of the experimental field next to it every year, Lao Song made a bold decision in 2015 to plant a new variety, Denghai 618.

That year, his yield per mu reached 1700 kilograms. ”]

Not to mention that Lao Song didn't even dare to think about it. Even the ancients who knew that the United States over there already had a yield of 2400 kilograms per mu could not help but feel excited.

A child was puzzled: "Master, why didn't he plant earlier? If he planted earlier, wouldn't he be able to harvest more early?"

There are also many other people who wonder why Mr. Li has already produced such a high yield, but later generations of the court did not promote it. It was the old farmer who took the initiative to change the seeds.

Xiaotong’s grandfather understands very well: “We don’t have to believe what others say. If anything happens, all the hard work for a year will be in vain. What I’m most afraid of is that there will be no harvest and starvation...”

There are always people who think that farmers know nothing and are born with short-sightedness, but they have never thought about why they are so short-sighted.

The greedy landlords, the dishonest court, the corrupt local government, and their inability to resist risks at all. If they were not short-sighted and focused on the present, they would have lost everything they have now.

The old man looked at Lao Song in the sky. He was more than ten years younger than him, but much older than him, and his spirit was completely incomparable.

Lao Song smiled happily in his green cornfield and told his experience of farming and corn. His face is wrinkled, he doesn't have much gray hair, and he speaks in a local dialect, but he can say these things confidently.

They are all farmers. They work hard every day. If they are lucky, the weather will be calm and there will be no disasters. However, they do not have much food and have to pay a lot to the superiors. Later generations of farmers who planted rice and corn had dedicated personnel to research high-yielding and improved seeds. They did not force people to plant seeds. They could change the seeds themselves if they wanted to...

[The red machine made a rumbling sound. It walked slowly across the field, and the corn seeds in the bucket were slowly sown on the field. However, Lao Song still followed the seeder habitually, checking whether every seed was buried. In the soil. ]

"What is this? This thing is moving in the field!"

"Planter! Why are they plowing the fields like this!"

After listening to the narrator's explanation, no one would think that Lao Song's caution meant he did not know how to enjoy happiness. They all understood Lao Song's caution about sowing, but they were even more surprised at how this seeder did it.

When people plow the fields, they need to plow the land first, loosen it for planting, and finally cover it with soil. After that, they need to water, weed, and fertilize regularly.

But there was just one person sitting on the seeder, and he quickly plowed all the land that would take at least an afternoon.

"They really don't need people to farm anymore..." murmuring, everyone remembered that Li Denghai's neighbor said before that it was all labor that had to be done.

"There is no mechanization...is this just mechanization..."

The efficiency and functions of this seeder are enough to dazzle everyone. It is a machine that makes them feel as magical as the steam engine, but makes them desire it even more.

It is a big thing that makes everyone obsessed with it than electric lights, computers, wall breakers, etc.

Ying Zheng: Now he also hopes that the anchor can sell things. Not to mention that she is just a little girl studying, but she can broadcast live broadcasts for people in different time and space. She is just buying something. She must have a way!

The Mohist disciples in Xianyang quickly copied the appearance of the seeder and kept discussing.

"Brother, the four wheels at the back can move and plow the ground. The seeds are sprinkled on the plowed ground."

"There are also rows of iron sheets here, which should be used for plowing the ground."

"Plow the ground first before sowing. If the iron piece is broken, it must be replaced. How do they remove it?"

"There are seeds in the bucket, but how can we ensure that each seed is evenly sprinkled on the soil?"

Mohist disciples have all worked in the fields, and they often spontaneously help farmers in the fields to cultivate together to realize their ideal of universal love.

Looking at this seeder, they were enlightened and realized that by studying science, they could achieve the goal of universal love.

Use your own knowledge and skills to make this kind of seeder, as well as various other tools that are beneficial to people's livelihood, so that everyone can save time and effort, farming will no longer have to be hard work, and everyone will have enough to eat first, just like in later generations. Isn't this The greatest love yet!

The few remaining scattered farmers are also on their way to Xianyang. They have been on their way since the first day they learned about hybrid rice. Normally, they would be able to enter the city now, but everyone is willing to follow Tianmu's lecture first.

Although the peasant disciples are extremely weak now, they still have their own goals. In the past, Da Qin's attitude towards them was unclear, but now the sky has changed, and those who don't want to fall behind other schools are rushing to Xianyang.

Looking at the seeder in the sky, the farmer pondered for a moment and found that he still had to go to the Mo family for cooperation.

The public loser who studies the entire riding outfit: Okay, sure, after the riding outfit on hand is finished, this is the next goal.

Liu Bei, who is currently sitting in the fields, hoping to cultivate improved seeds as soon as possible: Kong Ming, when will you be selected as the lucky audience? Please contact your descendants quickly and make it clear that you really recognize their descendants. , we Han really need your luck!

Zhuge Liang, who was remembered by his lord, also looked at the sky curtain drawings he drew based on the images, and found that he still needed to figure out the specific structure and the driving force that could make it move.

The steam engine burns coal, but what does this seeder burn?

Li Shimin looked at his two sons who had both been on the list with serious eyes.

"Gao Ming, Qing Que, next time if any of you are lucky enough to win, ask the anchor if she can sell this seeder. You can also trade it for Er Wang's calligraphy. If not, ask her how it was made. .”

In fact, the two children, who both had something they wanted to change, could only nod obediently.

Zhu Yuanzhang, who knew how hard it was to farm, also looked at the machine in the sky with fascination.

This kind of thing should also be studied by later generations of scholars. Their reading really made a difference in all aspects of later generations. In comparison, the debate between the classics and history subsets and the orthodox Neo-Confucianism among current scholars is really ridiculous.

I have to ask the host to find out how and what to learn so that they can build these amazing machines...