Generally speaking, for sweet potato planting, one acre of land requires fifty kilograms of sprouted sweet potato root pieces.

But for the first time planting, Liu Mingqi was not from an agronomical background, so of course she didn't know the degree. He could remember the approximate gaps and sowing density, so he had never lost the face of a child from the countryside.

More than 200 kilograms of sweet potatoes from afar, plus germination, etc., were divided into a total of more than 300 kilograms of land by Liu Mingqi to sow seeds.

This small ten acres of land was also planted by Liu Mingqi in four directions, southeast, northwest and northwest of the Imperial Capital.

He was worried that if the Feng Shui in some place became a problem and caused the sweet potato planting problem, he would be in tears.

A prestigious engineering dog or experimental dog is so worried that he has superstitious ideas!

This shows how nervous the young man is.

This is no wonder Liu Mingqi.

Anyone who knows the function of sweet potatoes will treat them as treasures.

Originally, he used twenty people to take care of the supervisors. Later, he recruited 707 and a half-year-old boys from the Fengwo Coal Workshop, and he sent another twenty people to deal with it.

In fact, taking care of ten acres of land cannot require so many people.

But on the one hand, Liu Mingqi was too nervous, and on the other hand, he wanted more people to be familiar with the process of planting and raising sweet potatoes from the beginning and cultivate professional talents, so he sent so many people to take care of them.

Today, Liu Mingqi came to the sweet potato test field in the east of the city.

This test field is the largest in the southeast, southwest and northwest, with a total of three acres.

The location is inside the sugar workshop, near the wall.

The sugar workshop has an area of ​​more than 300 acres, and it is still expanding outward. It is easy to divide a few acres into several acres.

Although everyone found it strange and didn't know what the little prince was going to do, they saw Liu Mingqi's magical people in Prince Yu's mansion, and never doubted his ability.

Even if they could see that they were growing crops, they felt that this must be an unusual crop.

Seeing the green sweet potato leaves covering the entire land, lush and beautifully growing, Liu Mingqi was in a very happy mood.

"Can you get a harvest?" Liu Mingqi asked the little supervisor standing beside him.

The young supervisor was named Yu Zheng, who was originally a son in Prince Yu's mansion. Although he was not very smart, he was very down-to-earth and serious in doing things. So General Manager Tian chose him to plant sweet potatoes for Liu Mingqi.

Yu Zheng nodded and shook his head when he heard this: "The sweet potatoes grown in some places are already very large, but some places are still almost on fire. The old farmer means to wait a little longer, not that short of this time."

In order to grow sweet potatoes well, Prince Yu's mansion specially hired many old farmers to provide guidance on planting.

Although they are not educated, their experiences and lessons are very important when dealing with farming for a lifetime.

Yu Zheng did not treat them badly. Each person's salary of five taels of silver per month was more than most farmers, and it was much more cost-effective than farming themselves.

So this group of old farmers simply handed over their land to their children to take care of, and they took the people from Prince Yu's mansion to soak in the fields all day long.

Now they have made great contributions to the vigorously growing sweet potato field that Liu Mingqi has seen.

Specializes in technology. Although no matter how good you plant the fields in the new era, you can't compare to the fingers of the financial industry, in this ancient times, experienced old farmers have always been treasures!

It’s just that the rulers rarely pay attention to it.

Not to mention ancient times, but modern times, aren’t there any big grain farmers who have built thousands of acres and planted tens of thousands of acres of land?

The money they give to ordinary workers is 30,000 yuan a year, but experienced and capable old farmers can get more than 100,000 yuan a year.

This is how people make a living by relying on their abilities!

So the old peasants in ancient times could do this.

They are more simple by nature. After getting so much money, of course they are working hard for your boss, so they cannot be lazy.

The boy grew up in the countryside, but because he was devoted to studying, he didn't know the details of the planting, but he knew that sweet potatoes must have been harvested before winter.

Why?

Because every late autumn, the villagers dig cellars to store sweet potatoes.

It is September now, and at most one month, you can harvest sweet potatoes.

But the boy's heart is also itchy now.

He asked, "Old Yu, are there any mature sweet potatoes in this field?"

"have."

Yu Zheng pointed to a place and said, "There are already a large piece of sweet potatoes ripe there, they are so big!"

The one he gestured was probably bigger than the cucumber, but it was much smaller than the kind of roasted sweet potatoes that Liu Mingqi knew.

Or after many years of careful cultivation and breeding of farmers, the growth of the future generations is getting better and better?

The boy guessed in his heart.

"Well, pick two for me, and then mix in the wood ash that burns firewood stove and is stuffed for an hour, and then take it for me to eat." The young man couldn't wait to order.

"yes!"

Yu Zheng didn't ask much, and quickly asked the people next to him to pick them.

"The other pieces of land are also very good." Liu Mingqi walked to the side, and Yu Zheng also reported: "Old farmers estimated that one acre of land can harvest more than five or six hundred kilograms, which is a very high yield."

"hehe."

Liu Mingqi disdains to argue with him.

But Yu Zheng still heard the disdain of his little master.

He was a little surprised, thinking that the little master was wondering whether the output could reach five or six hundred kilograms.

After all, in this era, the highest yield of rice in Jiangnan is about 380 kilograms per mu. The fish and rice town in the Lianghu area can almost reach this number.

This is the highest.

In ordinary places such as Gansu, Guizhou, Xikang and other places, the yield per mu will not exceed 250 kilograms.

The wheat yield will be reduced by one third because it is difficult to grow wheat. In addition, wheat that grows once a year in the north is not as good as rice that grows for two seasons in Zhejiang, Lianghu, Guangdong and other places in the south.

It is precisely because these places require two seasons of rice harvest, the taxes of the court are divided into summer and autumn fu in one year.

If a edible thing like sweet potatoes can produce a harvest of five or six hundred kilograms in a year, it will definitely be a very big harvest.

No wonder the little master didn't believe it anymore. If he hadn't been here all day and carefully pondered and discussed with the old farmers, he wouldn't have believed that sweet potatoes could have such a large yield.

When I get the harvest, I will ask the little master to come and he will know that I am not exaggerating.

Just as Yu Zheng was thinking this, Liu Mingqi said, "Before harvesting, you must tell me that you cannot harvest privately, and basically you will tell me when everything is available for harvesting. Do you understand?"

"yes!"

Sure enough, I still don't believe it.

Yu Zheng, who was a little depressed, had never imagined that Liu Mingqi's disdain was not that he thought five or six hundred pounds were too much!

But I think it's too little!

Grandpa Yuan finally got a kilogram of rice per acre. Liu Mingqi didn't know because when he traveled through time, Grandpa Yuan, who was in his 90s, continued to fight and continued to make a big impact.

But the yield of sweet potatoes is basically fixed.

Depending on the regional climate, the seasons of sweet potato sowing are also different. Those novels all write about the unified harvest time of sweet potatoes, which is wrong.

Because the growth cycle of sweet potatoes sown in spring is longer and more nutritious, they usually reach 5,000 to 7,000 kilograms per mu. They are finely cultivated and fertile, and occasionally have more than 10,000 kilograms, but that is not the norm and cannot be promoted.

The growth cycle of sweet potatoes sown in summer will decrease a little, but the yield will be at least 4,000 kilograms, and up to 5,000 kilograms.

What is this concept?

Take rice from the past for example. The best fields in Jiangnan only yield 380 kilograms per mu. However, they can speed up planting for two seasons a year, and the annual output is only more than 700 kilograms.

If you work harder in spring, you can basically reach ten times the rice yield! More than ten times the wheat yield!!

And the most important thing is that the land for planting sweet potatoes is not that picky at all. All water-deficient sand can be planted, and those sandstone mountains can also be planted.

In any land that rice and wheat do not look down on, there is basically no sweet potato that cannot be grown!

People in remote mountainous areas can only reproduce by sweet potatoes.

What is this concept?

This is the old ox in the crop world!

Not picky about food, not spoiled, with a lot of output, and a treasure all over the body!!

As long as sweet potatoes are promoted, even if they can only produce four or five thousand kilograms, it will be equivalent to an increase of about eight times the cultivated land!

Modern people say that sweet potatoes are flared and fucked, etc., and they don’t like them, but what else do ancient people choose?

Food that can eat enough to keep the whole family from hungering is a treasure given by God!

Isn’t it because of the beginning of the Qing Dynasty that the population of my Qing Dynasty soared from 40 million in the late Ming Dynasty to 500 million?

If it weren't for the Taiping Heavenly Kingdom, the Nian Army and other rebellions, the population south of the Yangtze River would have been reduced by more than 100 million. By the time the Qing Dynasty was destroyed, our country's population would have soared to 600 million to 700 million.

The Qing Dynasty was not rich, and they didn't know how to do business at all. There were many bannermen who needed to be supported, and overseas trade was also very poor, which was far inferior to the Ming Dynasty, let alone compared with our Song Dynasty.

Why do they support so much population?

Isn’t it because of these high-yield crops?

During the Qing Dynasty, Gansu, Shaanxi, Sichuan, Guizhou, Yunnan, Guangxi and other places gradually became more populous because of the cultivation of sweet potatoes.

Otherwise, in many periods in history, the population of these provinces was not as large as that of the three provinces in Jiangnan.

Only Liu Mingqi knows the secret of the true yield of sweet potatoes.

He resisted the urge to wake up Yu Zheng.

This kind of horror should not be used on them, but on the emperor and the imperial court bosses.

Liu Mingqi is very looking forward to what kind of expression they will look like after seeing the sweet potato harvest?

...

Note: "Han Shu·Food and Message" quotes the original words of Li Kui of the Warring States Period: "Now a man takes five people to manage a hundred mu of land, and (mu) earns one and a half stones per year." The conversion of the number of mu to grain production is roughly equivalent to the current yield of mu about 126 kilograms.

During the reign of Emperor Renzong of Song Dynasty, Fan Zhongyan said in his memorial to "Answer the Handwritten Decree and the Ten Things": "I am the magistrate of Suzhou. The land taxes are 34,000 hectares. The profit of the harvest is two to three s of rice per mu." The conversion of the number of mu to grain production is roughly equivalent to the current yield of mu about 360 kilograms.
Chapter completed!