The end of the Ming Dynasty swept the world

Chapter 531 Super High Yield

At the beginning of September, Ding Yi was still in Lushun. Although he was the commander-in-chief of Dongjiang Town, and the commander-in-chief's office was in Pidao, he was actually in Lushun most of the time, and he must have important firearms research here.

This morning, he went to the logistics department first. Many officials in the logistics department were waiting for him. They went to a nearby mountain together to see the sweet potatoes and potatoes planted this year.

The suitable season for planting sweet potatoes is from April to May, and also in June, depending on the local weather.

Because it is relatively high in temperature, Ding Yi chose to plant in April in Jeju Island, while Lushun and Phi Island were planted in May.

Sweet potatoes have strong adaptability and like sandy loam soil. There are still more of them in coastal areas such as Lvshun Phi Island and Jeju. It is best to plant them on sandy loamy mountainous land.

This year Lushun planted [-] mu, also for experimentation.

In addition, [-] acres of potatoes were planted.

Unlike sweet potatoes, potatoes can be planted twice a year, from March to May in spring and from August to October in autumn.

But in Lushun and Phi Island, because of the weather, only one season can be planted, and the time spans two crops, wheat and rice, so potatoes cannot be planted in the original rice fields, and only new plowed fields can be used for planting.

On the other hand, seaside areas with higher temperatures, such as Jeju and Daesuan, can be planted one season after rice is planted to replace wheat, and the yield of wheat is originally lower than that of rice. After combining rice and potatoes, the yield per mu will be greatly increased.

Here in Lushun, the potatoes were planted in April, which is almost ready for harvest.

Chen Youfu took Ding Yi to a potato field first, and saw many people digging potatoes.

They concentrated on digging an acre of land first, and more than a dozen people were working in it. When everyone saw Ding Yi coming, they got up one after another and greeted Mr. Ding enthusiastically.

Ding Yi also waved and greeted them with a smile.

The people here in Lushun are basically the earliest Liao people and immigrants, and those who came later, except for craftsmen, most of them are in Fuzhou, Jinzhou, Pidao and various forts.

So there are many common people here in Lushun, and most of them know Ding Yi.

When Ding Yi arrived, they had already dug a pile on the side, and officials were weighing it.

After weighing a pile, keep an account on the side, and add it up later.

Everyone had smiles on their faces.

Ding Yi looked at the pile of potatoes that looked like a hill, and was also very happy: "They all come from this acre of fields?"

"It's all." Chen Youfu said with a smile: "Master Ding, the output is really quite high."

"How many?" Zhang Jing and others asked anxiously.

Even the generals know that if there is no food pressure, there will be nothing in the world that can hinder them in Dongjiang Town.

"I don't know yet, we'll talk about it after we dig it all out."

"Damn, what are you looking at, let's help together." Ma Yue couldn't wait, and jumped directly into the field.

The generals laughed.

Ding Yi thought about it for a while, and vaguely remembered that in later generations, the highest output should be seven or eight thousand, and generally three or four thousand.

In this era, Gao Yi dare not think about it, and hope that if he can have a thousand catties, he will be successful.

Not long after, all the potatoes were dug out, and after weighing, Chen Youfu announced with a big smile: "820 catties."

"Wow." The audience shouted excitedly.

This output is basically about four stones.

Compared with the two seasons of rice and wheat in Lushun, the rice and wheat are just over two stones, which is almost doubled.

"Master Ding." Chen Youfu and other civil officials surrounded Ding Yi excitedly. They really wanted to say some compliments, but they didn't know how to say it.

Mr. Ding can always come up with all kinds of whimsical ideas, this time he simply brought sweet potatoes and potatoes from Mr. Ding, and said that they are high-yielding.

Many people didn't believe it at the time, but now seeing the results, it's amazing.

"With such a high output, hurry up and increase the variety." Some generals shouted.

Dongjiang Town has stockpiled a lot of fields in Dengzhou, Jeju, and Lushun over the years, but it still feels that there is not enough food.

The wheat harvest was lost in the severe cold the year before last, and the loss was even more severe, with hundreds of thousands of shi lost in harvest a year.

In this world, where food is so expensive, having food means having money and people. No one understands such a simple truth.

"You can't grow too many. These two things can't be eaten now." Ding Yi said: "Especially those sweet potatoes, people with a lot of stomach acid are prone to gas and sour."

During the Wanli period, China already had sweet potatoes, but some people would feel bloated if they ate too much, and they might feel that it was not good. In addition, the government did not promote it well, and there was no large-scale planting in the country. It was not until after the Qing Dynasty, that it was ordered to be promoted nationwide during the Kangxi period, and it was not until Yongzheng Only in the past few years has it become a common ration in people's homes.

Whether planting sweet potatoes, potatoes, or corn in the future, they must be paired with rice and wheat.

Ding Yi pulled people from the logistics department to discuss with them.

For sweet potatoes, it can only be planted in May and June, and harvested in October. This is the season for rice planting and harvesting. If you plant sweet potatoes, you will have to give up rice.

But sweet potatoes can be grown in mountainous areas, as long as the soil is sandy loam, so it is possible to store some new fields on the mountainous areas to grow sweet potatoes without affecting the current grain fields.

From last year to the present, people from the logistics department searched everywhere, and finally counted that the mountainous land that can grow sweet potatoes in Lushun and Pidao is only [-] mu, and from Jinzhou to Fuzhou, there are about [-] mu, plus It's almost [-] acres.

In more mountainous areas, either the ground is full of stones (in the Jinfu area) or sand (in the coastal area), so it is best to plant [-] mu of sweet potatoes in the entire Dongjiang Town.

Ding Yi calculated that the output of sweet potatoes in this era is about [-] to [-] catties.

Because when Xu Guangqi was alive, he summed up the "Thirteen Wins of Sweet Potatoes" for promotion of sweet potato planting. One of the famous lines is "one mu harvests dozens of stones."

Xu Guangqi succeeded in trial planting in Songjiang (Shanghai), and he also promoted it in Songjiang. After Ding Yi got the sweet potatoes, he knew that Xu Guangqi had tried planting.

Now some people in Songjiang are already planting, but they have not received much attention from the local people. Ordinary people have something to eat, and even the rich and powerful look down on it.

This is also the reason why Ding Yi went to Songjiang Xu's house many times and did not eat it. If he had eaten it earlier in Songjiang, he would have been able to start planting earlier.

According to the "Thirteen Wins of Sweet Potato" promoted by Xu Guangqi, dozens of stones are harvested per mu, and if it is less, there must be two thousand catties.

Planting one mu of sweet potatoes is equal to ten mu of fields, and Dongjiang Town planted 40 mu, which is equivalent to [-] grain fields.

So here in Dongjiang Town, due to the limited land area, the original rice and wheat fields are not moved, and only [-] mu of sweet potatoes and [-] mu of potatoes are planted (the potato fields need to be newly stocked, so there are only [-] mu).

On the other side of Jeju, there are more mountainous lands that can be planted.

Ding Yi also asked someone to make a circle last year, and there is at least [-] mu.

But there is a problem over there. There is a shortage of manpower, and the population is too different from that of Lushun. Now the land is just right, and it is impossible to expand large-scale cultivation in a short time.

Ding Yi's goal for them this year is to plant [-] mu of sweet potatoes and [-] mu of potatoes.

Sweet potatoes in Jeju are planted in new mountain land, while potatoes can be replaced with wheat, that is, rice and wheat are replaced by rice and potatoes.

In this way, the original [-] mu of rice and wheat can produce [-] shi of grain in Jeju every year.

After replacing it with rice and potatoes, [-] mu can produce six stones a year, which is doubled.

Why didn't all of Jeju be replaced with rice and potatoes? The main reason is that people in this era eat more wheat and need to eat flour.

Ding Yi's final plan is that Lushun's side will not move, and Jeju's farmland will be gradually replaced by [-]% of the farmland and replaced by rice and potatoes, so as to double the output there.

In this way, the rice and wheat over there can be self-sufficient, potatoes, etc. can be made into cakes to feed cows and horses, and the planting of soybeans can be reduced, because the difference in yield is about three to four times, and the efficiency is different. Planting one acre of potatoes can equal three or four mu of soybeans , It is definitely better to use potatoes to raise poultry and livestock, and the efficiency is also high.

A small amount of soybeans can be used as concentrated feed to raise war horses.

On the Dayuan side, there are too many fertile fields that can be cultivated. As long as the population increases in the future, potatoes and sweet potatoes can be planted on a large scale.

Dengzhou is a special place. To be honest, Ding Yi does not want to promote sweet potatoes and potatoes in Dengzhou now.

After all, the Denglei area is not completely under his control.

Therefore, Dengzhou will not change in the past two years.

Ding Yi discussed with several officials of the logistics department on the spot, and quickly determined the order and area of ​​the next promotion.

Xu Wei, who had been listening to the side, suddenly said: "Why don't you plant in Dengzhou, there are so many disaster victims over there."

All the generals looked at him.

Ding Yi thought for a while, then slowly said: "The Dengzhou side still focuses on draining victims. We don't have extra manpower to promote it. Over there, it's not completely under our control."

"But the sweet potatoes we grow can be transported to Dengzhou in the future to be eaten by the disaster victims."

"Oh." When Xu Wei saw everyone looking at him, he felt that he had made a mistake, so he didn't dare to say more at this meeting, so he quickly turned to other topics.

Finally, Ding Yi said: "Rice is still the main food at present. When everyone gets used to sweet potatoes and increase the area, let's eat more sweet potatoes and sell rice, then we will have money, food, and elite soldiers."

Everyone agreed in unison.

(End of this chapter)