Early the next morning, Huang Han accompanied Xu Guangqi on the road to Kaiping Town, the scientist is also a doer, he doesn't care about pomp and circumstance, and he is more impatient and polite, and Huang Han is happy to be casual.

As soon as he arrived, Xu Guangqi, who couldn't wait, personally went to the field to inspect the sweet potato and potato seedlings planted yesterday.

Huang Han is really interested in these crops that can live countless people, and he still accompanies them throughout the process, and personally participates in the work, and also knows how to tidy up the ridges.

The sweet potatoes and potatoes planted in the summer can be harvested in just over 120 days, and now it is only mid-May when the time is completely in time for farming, and Xu Guangqi finally showed a happy smile.

Huang Han didn't know much about agriculture, but he wasn't completely ignorant, at least he knew that potatoes were more hardy and nutritious than sweet potatoes.

Therefore, he advised Xu Guangqi to raise as many potato seedlings as possible, and he called on farmers to plant large areas to ensure that there is enough food to meet the harsh winter this year.

Xu Guangqi didn't expect to be able to grow hundreds of thousands of acres of potatoes and sweet potatoes at all, and when he saw Huang Han full of confidence, he couldn't help but smile dumbly.

He said: "Huang Han, do you know that farmers are ignorant, why is it difficult for them to accept a new crop? I have worked hard for the teacher for more than ten years, but I am still helpless, and the promotion of sweet potatoes and potatoes that can be high-yield is obviously beneficial to the country and the people, but it is difficult. ”

Huang Han said with a smile: "Master, that's because you are a scientist, specializing in scientific research and experiments, the so-called specialization in technology is like this, and promotion is actually a science, you may not be proficient in it." ”

was pointed out by his apprentice that he was not promoting the law, Xu Guangqi didn't care at all, but was interested in Huang Han's topic, and asked: "In this way, you are not confident." ”

Huang Han is also not modest, and he is grandiose: "Of course, as long as you grasp the hearts of the people, understand the needs of the farmers who are digging in the soil, and then weigh what they are worried about, and then find a balance within your ability." ”

Xu Guangqi was immediately attracted by Huang Han's argument and asked, "Can you be specific?" The teacher seems to have understood, but he feels that he still doesn't know the essentials. ”

Huang Han went on to instill a new concept in the scientists, saying: "Farmers are only thinking about food and clothing, what do they need to feed their families, and what if they fail to try new crops?"

What should I do if the crops I grow can't be sold?

As a promoter, these causes and consequences should be comprehensive, and in order to give the people confidence, it is necessary to minimize the risk factor that the people may bear. ”

Xu Guangqi listened very carefully, and he nodded: "Of course it's good, but I don't know how you plan to promote the cultivation of potatoes and sweet potatoes?" ”

"It's very simple, first of all, all the acres of the Huang family that have not been planted with spring wheat have been replanted with sweet potatoes and potatoes in time, and the total is estimated to be 50,000 or 60,000 mu.

The next step is to let the surrounding abandoned acres of land be planted, in order to give reassurance to the farmers who are willing to plant, my Huang family high-profile propaganda to purchase all the output. “

Xu Guangqi was puzzled: "Sweet potatoes and potatoes are new crops, and I don't know how much they are worth?" At what price are you going to buy?

It is obvious that the low bid makes it unprofitable or even a loss for the common people, and they are afraid that they will never touch these two things in the future.

If the bid is too high, the selling price will not have the advantage of being cheap and high-quality compared with the cereals, and there will be a risk that it will not be sold. ”

Huang Han came from later generations and knew that these two things were definitely price competitive, so he packed the ticket and said: "The price of sweet potatoes and potatoes is simple.

In the past, the yield of wheat can be obtained from one mu of land in a medium year is calculated as the base.

This year, the purchase price of sweet potatoes and potatoes harvested on one acre of land will be increased by 20 percent according to the current price base of wheat, so that the common people can get more than 20 percent of the profits. ”

Xu Guangqi thought for a while and said: "Wonderful, wonderful, according to this calculation, five or six catties of sweet potatoes should be about equal to one catty of wheat." The old man felt it, don't mind, don't stop, continue to talk. ”

Huang Han continued: "We first paid a deposit of two taels of silver for every ten acres of land, and promised that if the ten acres of land where they planted new crops were not harvested, the two taels of silver would not be recovered, and it would be used as compensation to the peasants.

This operation makes the farmers invincible, and they naturally have the enthusiasm for production without worries.

When the sweet potatoes and potatoes they grow this season are sold for silver, as long as they can exceed the profit obtained by planting wheat, even if it is only one or two percent, they basically don't need to spend too much time planting next year, after all, it is much easier to grow sweet potatoes and potatoes than wheat and rice. ”

Xu Guangqi nodded continuously, and after listening to Huang Han's entire plan, he twisted his beard and laughed: "Rao is so, haha, Wen Jun's words are better than reading a book for ten years!" The old man was taught. ”

Huang Han hurriedly said modestly: "Master, your old man can't talk like this, the disciple has no place to be ashamed?" ”

"Alas! You have such knowledge, I'm afraid the old man has nothing to teach you? ”

"How can it be, you can teach more, for example, planting rice in the land of Gyeonggi, planting maize, building water conservancy projects, and you can also transfer some master craftsmen in the capital to hand over to apprentices how to cast cannons!"

Xu Guangqi said honestly: "It's no problem for you to learn these things, the technique of casting cannons for the teacher is not yet essential, you have a senior brother Sun Yuanhua who has done a good job, you can ask him for advice in the future."

It is indeed quite good to build ditches and reservoirs for the division, and as long as there is money, grain, and manpower, it is not a problem to build an irrigation system for the division to ensure harvest during drought and flood. ”

Huang Han thought that if he used soil methods to make cement as a building material, even if it could not meet the quality standards of later generations, it would greatly improve the construction difficulty and service life of reservoirs and channels.

Xu Guangqi should be a water conservancy expert who is proficient in the management of small watersheds, and it is not a problem for him to lead students to participate in the construction of water conservancy facilities for the benefit of all people.

Huang Han drafted the promulgation of the new crop promotion method in the afternoon of the same day, and asked the officials and family members brought by Xu Guangqi to guide the cultivation techniques on the spot, and the farmers who came to learn not only provided them with free of charge, but also provided them with warm boiled water and two large cooking cakes to satisfy their hunger.

The news spread all at once, and on the third day, the number of peasants who came to attend the lecture reached two or three thousand, and everyone knew that they could still recover the losses by replanting sweet potatoes and potatoes if they missed the agricultural season.

The peasants who came to listen to the lecture also learned that as long as they planted these two new crops with their hearts, they could basically ensure a harvest this year, and if there was no harvest, the Huang family's two taels of silver per 10 acres of land would be used as compensation and the people would not be required to return them.

You don't have to worry about the pests and diseases of new crops, because during the field management period, there will be officials, family members of the Ministry of Rites, and students of the "Red Banner Army" who come to the field to solve technical problems.