Chen Yujie was still a little hesitant...

After all, he has always followed his uncle. Although Xiong Tingbi gave him the opportunity to become an official, he actually knew that as long as he followed his uncle, he could still get a job.

Of course, this is his own business.

The two went to the street outside together.

At this time, the victims were still pouring in. The heavy rains in the past few days caused floods to varying degrees in Shuntian. In fact, this place has always been like this, because it is located in the common water discharge channel between the Taihang Mountains and the Yanshan Mountains. Whether to the west or north, floods from the mountains gather here. During the Liao Dynasty, Yanfangdian was hundreds of miles in the south of Tongzhou. Even the Nanyuan was still inexhaustible all year round and was like a vast ocean. This flood was almost standard when the mountain torrents occurred in summer. These influxes made the prosperous times of the capital change in an instant. The streets were full of victims who were dragging their families and crying and praying for alms. Although Wanli quickly ordered the establishment of a porridge factory, it was obviously impossible to change anything...

Everyone knows how to distribute porridge in the government.

The emperor took out 10,000 taels, and it was estimated that only 1,000 taels were used on the victims, not to mention that the rice price was also soaring.

"Do you know sweet potatoes?"

Yang Xin asked Chen Yujie.

"My uncle has tried planting in Jiangnan, but it is not popular among the people. Jiangnan does not lack food. People who are used to eating rice don't like to eat it at all. What's more, Jiangnan doesn't even like to plant rice now. Mulberry cotton is the most popular. Rice is bought from Huguang and Jiangxi.

Who can still grow sweet potatoes?

In the north, we are currently testing the plant in Tianjin, but we have never thought about how to preserve it. This thing is most afraid of freezing, and it will rot and become uneducated once it is frozen."

Chen Yujie said it very directly.

Then Yang Xin looked at him with a very strange look...

"Brother Yang?"

Chen Yujie said in a daze.

"Will you dig a hole and bury it?"

Yang Xin said speechlessly.

He didn't expect that such a simple question would stump the famous Xu Guangqi.

"Brother Yang can solve the problem of winter storage?"

Chen Yujie said in surprise.

"That's the easiest one. Dig a hole, dry, waterless but damp, then spread sand and bury the thing inside, insert something to breathable, and then you don't have to worry about it anymore. If there is a kang at home, it's perfect, just pile it in it, why don't you hold it all winter?"

Yang Xin said.

"Let's go, look for my uncle!"

Chen Yujie said without hesitation.

In fact, Xu Guangqi really didn't solve the problem of winter storage, but Yang Xin said that with the old man's mind, he immediately understood.

"How much do you know?"

Xu Guangqi asked bluntly.

"ask!"

Yang Xin also took the teacup and said, "I'm not polite to sit on the Taishi chair."

"I have already understood that there is another problem. This species needs to be warm in the weather, and can only be planted in the same species as other crops in spring. However, its growth period is too long and other crops have already harvested this species and cannot be harvested. As a result, the wheat sowing in winter is delayed, so that it can only be planted for one season a year, so that it will be useless to increase its yield. In the south, the warm germination of the seedlings before transplanting them, there is no problem."

Xu Guangqi said.

"Simple, make a seedling bed similar to a kang and line the seed potatoes on top, cover them with soil and burn them to control the heat so that they germinate in advance, and then cut them off and transplant them after they have finished cutting the wheat."

Yang Xin said.

This is the standard practice for seedling cultivation in the north without plastic film, and the Shandong Peninsula does this.

"Aren't you afraid of baking it out?"

Chen Yujie said in surprise.

"I don't want to answer such a primary question!"

Yang Xin said with great urge to be beaten.

"This is not difficult. Experienced farmers can ensure that it can be tried with their hands. Moreover, this kind of seedling cultivation must be experimented. You will understand after a while. This can indeed ensure that it is staggered with wheat, harvest wheat, and plant sweet potatoes after harvesting sweet potatoes, and cultivate dry fields in the north can also ripen twice a year. If this method can be performed, Xiaoyou Yang will be famous for all ages!"

Xu Guangqi said.

Yang Xin continued to drink tea with a cover bowl and pretend to be a master.

"Also, people don't like to eat this, which is also a problem."

Xu Guangqi said.

"This roasted sweet potato, or sweet potato, is indeed too acidic when eaten too much, but we can change the method to solve it, such as brewing wine. How much food will be wasted in the Ming Dynasty? After His Majesty issued an imperial edict, only drinking sweet potatoes will be allowed to solve the use of sweet potatoes? In addition, we can make vermicelli, crust, and even sweet potato pancakes, especially sweet potato pancakes. This not only solves the stomach acid problem, but also resistant to storage. Even if it is cooked, cut dried sweet potato strips and sell them as snacks, which is also very good. For example, I like to make sweet potato strips in winter and roast them on the fire."

Yang Xin said.

Chen Yujie looked speechless.

This means you have eaten it! By the way, we are experimenting in Tianjin in the entire north. Where can you, a so-called Hejian person, eat it?

"I understand wine making, but I don't understand anything else!"

Xu Guangqi said.

"How many sweet potatoes have you planted in Tianjin?"

Yang Xin asked.

"It's not too much, it's only a hundred acres, just on some thin land."

Chen Yujie said.

“Does sweet potatoes still exist now?”

Yang Xin asked.

"Not yet!"

Chen Yujie said.

"Then wait for the harvest. You are responsible for investing, buying a small yard, recruiting some workers, and then after the sweet potatoes are harvested, I will teach them how to make various products. Especially the pastry and vermicelli, I can guarantee that it will be popular. In addition, you can also make small snacks with sweet potatoes, which can be sold. In short, we can use them to make money. Xu Gong, the promotion of the government has no effect, and even if there is one, it will be very slow. But if our sweet potatoes can make money, then there will be people who follow the trend without the promotion of the government. In this way, your sweet potatoes will still be promoted and we can take the opportunity to make a small fortune."

Yang Xin said.

He actually won't do this either.

However, first of all, the foods such as vermicelli have already existed at this time, and have long been popular among the people, and the rest is nothing more than changing it to sweet potatoes.

No sweet potato noodles are needed.

These are all slurries that are cut and ground into sweet potatoes. The rest is filtered and finally obtained pure starch paste and added alum. It is nothing more than this procedure. The rest is the traditional vermicelli method. This is not to make money, but to promote sweet potatoes. In the short term, only Xu Guangqi's real estate sweet potatoes in Tianjin in the whole north will monopolize this industry. Traditional vermicelli is made of mung beans, and the cost of this thing is incomparable to sweet potato vermicelli. Even if the low-cost sweet potato vermicelli is cheaper, it will still be popular. As long as you make money, someone will naturally join this industry.

In the feudal era, the government promoted new crops with the lowest efficiency.

However, once this new crop becomes a profitable business, it will spread like a flood.

Then Xu Guangqi can also sell seed potatoes.

Technical consultation can also be provided, of course, for a fee.

In short, the wealth will be fine within three to five years. After three to five years, sweet potatoes will begin to flood.

“This is worth a try!”

Xu Guangqi said with a smile.

"What else? By the way, corn is also available at this time, right?"

Yang Xin asked.

"Yes, also called Yumai."

Xu Guangqi said.

The first name corn was found in ancient Chinese books. In fact, it was his later book of Agricultural Affairs. However, corn flour cakes also appeared in a famous novel, so this title should be commonly used in the north. However, Xu Guangqi found other names, and he himself said that it was because the sources of introduction were different.

"But the yield of this product is very low, which is not comparable to sweet potatoes, which means the benefit of drought tolerance!"

He said.

“That’s the pollination issue.”

Yang Xin said.

"Plant seeds are similar to human children. They must match male and female to produce seeds that can reproduce. Without male and female, they cannot produce qualified seeds. The male and female corn are on the same plant. The top of the corn is male flowers, and the whiskers at the bottom are female flowers. The corn we plant comes from natural pollination. The pollination process on the female flowers below has corn seeds. However, this pollination process is very difficult to guarantee. Inadequate pollination means that corn cannot be produced, and in the end it can only be used to pollinate as many grains. So just help with it manually. Shake more when the male flowers bloom, or have time to use a brush to dip the male flowers with pollen for the female flowers. If you feel that the yield is not high enough, cut off a male flower from one tree. This thing has a lot of pollen and consumes a lot of nutrients. Without the male flowers, all the nutrients will give the female flowers naturally."

He continued.

This question is very high-end and has exceeded his scientific level.

Hybridization is the kingly way, but he can't play with it, and there are not so many lines. In fact, the modern corn hybrid line did not get a piece until the 19th century.

But auxiliary pollination and de-heightening will definitely increase yield.

"Pollination? Male flowers, female flowers?"

Xu Guangqi said in confusion.

"Mr. Xu, this problem is very complicated. It involves a systematic science and will be difficult to explain clearly for a while. Even if it is compiled into a book, it must be comparable to the Yongle Encyclopedia. If you want to study it, you probably won't really study it thoroughly in your lifetime. Of course, if you really have this perseverance, I recommend you to make an instrument. By the way, you should know about the telescope? Two lenses are superimposed on them to see things in the distance."

Yang Xin said.

"Yanmano mentioned that Galileo observed the stars, but there was no real thing."

Xu Guangqi said.

"Okay, you can find a good crystal craftsman, find a few good crystals, and find another copper smith. Obviously, I can offer treasures to His Majesty again."

Yang Xin said.

He didn't expect that the Ming Dynasty would not have a real telescope.

But this is also normal. Although the Dutch had invented this a long time ago, it was blocked by technology. It was not until Galileo made it himself ten years ago. Ten years later, the Ming Dynasty, tens of thousands of miles away, could know that there was such a thing that was closely following the trend. This was undoubtedly a good thing for him. He could manufacture it in large quantities and then apply it on the battlefield. Not to mention whether it could be useful, at least it is very beneficial to him at present. In addition, he could also make an original microscope to let Xu Guangqi see the true face of the plants.

But after fifty years, Levinhok used a microscope to sound the horn of modern biology
Chapter completed!