Da Qin: Comparing his sons, Ying Zheng was sour.

Watching the prince Fusu and the others on the canopy start to go to the Sixth Division of the Ministry of Agriculture, after waiting for so long, the people of Qianshou who finally waited for what they wanted to see also took action.

"Literate, is there anyone who is literate?"

"Whoever is literate will write down everything His Royal Highness the Crown Prince said later!"

"My son is literate, let him memorize it!"

"Brother Bian, Brother Mu, Brother Yu...... We'll each write it down later, and then we'll put it together again, how about it?"

"This method is good, add me one!"

"I'll come too, I'll remember a paragraph too, and if I don't remember it when the time comes, you will tell me!"

"We went to the officials, we were illiterate, they were literate, let them help me write it down, and then teach it to us. "

"Old sister-in-law, this method is good, let's go for a walk, let's go to the lord. "

....

The people of Qiantou all over the world have their own ways to think of their own ways.

If there are literate people in Qianshou, then go to the literate people in Qianshou to help record what the prince Fusu said.

If there is no literacy among the people of Qianshou, then one person will remember a paragraph, and then everyone will piece together the content of the memory.

There are even some bold ones, for example, the old Qin people directly found the Qin officials near them and asked these Qin officials to help them record.

And the Qin officials who were approached did not dare to refuse.

After all, if it was just one or two old Qin people looking for him, then he could still refuse.

But hundreds of old Qin people from Wuyang came to the door together, and even Qin officials couldn't simply ignore it.

And although I heard that His Majesty the First Emperor will change the law in the future, at least now the Qin State is still knighted for military merits.

The old Qin people in front of him who are looking for his records may still be just ordinary people of Qian, but who knows if his father and brother will come back with a title on the battlefield.

Once you have a knighthood, then the other party's status is instantly higher than your own.

Therefore, the Qin officials who were found at the door basically did not dare to slack off, and picked up pen, ink and bamboo slips one after another, ready to record them carefully.

Moreover, even if these Qianshou people do not find them, in fact, they themselves will record it.

After all, they themselves have acres of land to cultivate.

Even if they didn't think about others, but only for themselves, they had to record as much as possible the cultivation methods mentioned by Prince Fusu that might increase yields.

Therefore, under such circumstances, the people of Qianshou all over the world are holding their breath, waiting for the prince Fusu's narration.

[Soon, Tai 06 Zi Fusu, Qin Wang Yingzheng, Xu Zi, and Zhang Han, who served as an attendant, also came to the Agricultural Division, one of the six divisions of the Ministry of Agriculture. 】

[It is said to be a farming division, but in fact, it is a large field that has been fenced. 】

[And Xu Zi, who is the secretary of the Ministry of Agriculture, also opened his mouth to introduce to the prince Fusu and Qin Wang Yingzheng: "At present, the Agricultural Division has reclaimed a total of 600 acres of fields for cultivation experiments. "】

["Among them, the Tianshi group, the fertilizer group, and the cultivation method group are each divided into 200 acres of fields for cultivation experiments. "】

["There is still about half a month before the most suitable time for summer planting, so these acres of land have not really begun to be sown and cultivated. "】

[Speaking of this, Xu Zi looked at Prince Fusu and asked, "Your Highness's thoughts on improving farming, is it about the time of day, or about fertilizer, or about farming methods?"]

[If it is about Tianshi, then he will take Prince Fusu and Qin Wang Yingzheng to the experimental field of the Tianshi Group. 】

[If there is anything about fertilizer or cultivation methods, then he will take Prince Fusu and Qin Wang Yingzheng to the experimental field of the fertilizer group or the cultivation method group. 】

[Prince Fusu looked at the cultivation method group and said, "There are some ideas for improvement in the cultivation method. "】

[Xu Zi nodded and said directly: "Okay, then let's go directly to the cultivation method group first.] "】

[At the same time, Xu Zi also called the other two groups, and even the children of the other five divisions who were temporarily idle. 】

[After all, with the emergence of a new way of farming, all of their peasant children must be known, learned, and mastered by everyone. 】

[Soon, everyone went to the experimental field where the cultivation method group was located, and at the same time, the farmers of the other two groups and the fifth division were also rushing over one after another. 】

[After the children of the peasant family had almost arrived, the prince Fu Su was in a clearing, holding a tree branch and sketching, and said: "The cultivation method we use now is mainly the 'mu method'. "】

["The mu method is composed of two parts: the mu and the mu. "】

["Among them, the mu is the ditch, and the mu is the ridge, so the mu method is also a ridge method. "】

["The use of land by this farming method includes two ways: 'abandoning acres in the field and abandoning the acre'. "】

["Its characteristic is: in the high-lying field, the crop species are planted in the ditch, not on the ridge, which is called 'abandoning the acre'. "】

["In low-lying fields, planting crops on ridges instead of furrows is called 'abandonment of the field.'" "】

["Planting ditches without planting ridges in high fields is conducive to drought resistance and moisture conservation; planting ditches without planting ditches in low fields is conducive to drainage and flood prevention, and is conducive to ventilation and light transmission. "】

[The peasant children who were listening around all nodded slightly, and they were also familiar with the Mu Law. 】

[In a few words, Prince Fusu said concisely and clearly the cultivation methods and cultivation characteristics of the Mu method, which can be seen that Prince Fusu does have an in-depth understanding of cultivation methods. 】

[After simply drawing the mu method with tree branches on the open space, Prince Fusu drew a boxy box next to the mu method, indicating that this is another mu of land. 】

[Then, Prince Fusu dug three more ditches and three ridges in this box. 】

[Then the prince Fu Su explained: "This is a farming method that I thought of after the solitary observation of the mu method. "】

["In one acre of land, make three furrows and three ridges, and the positions of the furrows and ridges are exchanged once a year. "】

["Everyone knows that there is a difference between fertile and barren acres of land. "】

[However, even if it is a fertile field, if it continues to be cultivated. "】

["Then the acres of originally fertile land will gradually become less fertile, and the yield of grain per mu will gradually decrease. "】

["I think the reason for this phenomenon should be that in the process of planting, the crops gradually absorb the fertility of the land. "】

[Speaking of which, Prince Fusu looked around and found a small canal more than ten steps away, and then took out a towel and asked Zhang Han beside him to take it and wet it, and then take it back. 】

[But after more than ten breaths, Zhang Han came back with a wet towel and handed it to Prince Fusu, and also picked up a gourd scoop next to him on the edge of the canal, filled most of the scoop of water and brought it back. 】

[Prince Fusu glanced at Zhang Han approvingly, then took the wet towel and explained: "The fertile land is like this towel covered with water. "】

["But in the process of planting crops year after year, the fertility of the acres of land is gradually absorbed by the crops, just like this wet water towel, and gradually loses its original moisture. "】

["Eventually, acres of fertile land will gradually become barren. "】

[Prince Fusu said, while twisting his hands in the opposite direction, gradually wringing out the water on the towel. 】

[But after three or five breaths, the original moisture on the towel was twisted by Prince Fusu. 】

[In the end, Prince Fusu spread out the towel again, only to see that the towel that was originally stained with water became crumpled. 】

[It can be said that it is a very vivid explanation of how the fertile land and acres gradually become barren. 】

[Xu Zi on the side, as well as a group of peasant children, also saw that their eyes were shining. 】

[As they have studied and cultivated for many years, it can be said that they immediately understood the meaning of what Prince Fusu said. 】

[And according to their past research on farming, it is almost certain that the fertility of the land per acre that Prince Fusu said, because the loss of perennial cultivation is correct. 】

[Because of such things, they have seen many times in their past farming careers. 】

[It's just that apart from letting the people of Qianshou temporarily abandon this piece of land after losing its fertility, they haven't come up with any other good solution for the time being. 】

[But looking at the appearance of the crown prince Fusu, it seems that there is a better solution. 】

[Thinking of this, Xu Zi and the children of the peasant family all looked at the prince Fusu with expectant expressions, and listened more carefully. 】

["If you want to make this land fertile again, there are probably three ways. "】

["The first way is to leave it vacant for the time being, and no longer cultivate on the acres of this barren land. "】

["Leave it vacant for one or two years, or three or five years later."] "】

["The fertility of the land, which was originally absorbed by the crops, will naturally and slowly fill back from all corners of the earth. "】

["At that time, this land will naturally become fertile again. "】

[While explaining, Prince Fusu put the crumpled towel on the ground, and then simulated the wind, sun and rain, and dropped a few drops of water on the towel from time to time. 】

[Although the recovery time of the towel is relatively slow, but after a while, it finally becomes moist again.] 】

[Hearing this method, Xu Zi and the children of the peasant family nodded slightly, this is their previous method of dealing with the loss of fertility per acre of land. 】

["The second is to re-replenish the fertility needed by the acres of the land, that is, to supplement the acres of the land with fertilizer that is conducive to cultivation. "】

["Things like grass ash, rotting weeds in the field, etc., these can be used as a kind of fertilizer to supplement the lack of fertility of the land. "】

["In this way, the acres of land that were originally barren will become fertile again. "】

[Prince Fusu wrung out the wet towel again, and then picked up a handful of water from the gourd scoop next to him and sprinkled it on the shriveled towel again. 】

[Soon, the originally crumpled towel became moist again. 】

[Xu Zi and the children of the farmers on the side nodded when they heard this method, fertilizer is indeed a good method. 】

[However, at present, they have not yet fully determined the amount of grass ash suitable for various crops. 】

[After they have determined it, they can use this method to supplement the fertility of those barren acres of land.] 】

[Thinking of this, Xu Zi and a group of peasant children decided to increase their research on fertilizers. 】

[At present, there are only two kinds of fertilizers, plant ash and rotten weeds, which are still too little. 】

[If the land fertilizer they have researched is enough, then maybe all the barren fields in the world can be turned into fertile fields in the future!]

[Land fertilizer research is promising!]

["And the third method, Lone named it the rotation cultivation method. "】

["There are two kinds of rotation tillage methods, one is called crop rotation tillage method. "】

["It means that this year, wheat will be planted on this acre, and next year it will be planted on the same acre of land, and then it will be planted back to wheat and the like the year after."] "】

["However, this crop rotation method has not been confirmed for the time being, but I think it should be feasible. "】

["After all, the crops are different, so the fertility required by the crops should also be different."] "】

"Some crops may require more fertility, while others may require less. "】

"If you plant a crop that requires more fertility in the first year, then plant a crop that requires less fertility next year. "】

["This can not only allow the acres of land to get some time to ease and restore their own fertility, but also allow the people of Qianshou to continue to have more or less harvests on this land and acres. "】

[Prince Fusu narrated, twisted the towel handkerchief, and then dripped a few drops of water back, in this way, simulating the crop rotation method. 】

[In this way, even if the prince Fusu has been twisting, the towel will always be kept in a certain moist state because of the replenishment of water droplets. 】

[Hearing this, Xu Zi also spoke: "When His Royal Highness divided the six divisions of the Ministry of Agriculture before, he briefly mentioned this cultivation method, and after I came back, I also set up such a crop rotation control research group. "】

[Immediately, Xu Zi's eyes also fell on Chen Xin, the 740th brother of the farmer on the side, and he was in charge of the crop rotation control research team. 】

[Feeling his teacher's gaze, Chen Xin also stood up and replied: "At present, we have a total of fifteen groups, ten of which are responsible for studying the rotational cultivation of grains between acres of the same land. "】

["The other five groups are studying the rotational cultivation of grains and soybeans on the same land. "】

["I want to see which two kinds of grains have the best rotation effect among the five grains, and which kind of grain and soybean have the best rotation effect!"]

[Hearing Chen Xin's answer, Prince Fusu also nodded and said approvingly: "Very good, Lone is looking forward to the day when I see your research results.] "】

[A group of farmer children related to the crop rotation control research team all responded in unison: "I will live up to His Highness's trust!"]

[Qin Wang Yingzheng, who had been standing behind the crown prince Fusu and was silent, also nodded slightly when he saw this scene. 】

[And Prince Fusu continued: "Another method of rotational cultivation is called the rotational cultivation method of cultivated land. "】

["It is said at the beginning that in one acre of land, three ditches and three ridges are made, and the positions of the ditch and ridge are exchanged once a year. "】

[For example, this year the crop is sown in three furrows in the acre of the land, and then next year the three furrows will be turned into three ridges, and then the original three furrows will be turned into three furrows. "】

["In this way, when the crops are planted in the three ditches, the part of the land in the three ridges can take the opportunity to recuperate and restore the fertility of the land. "】

["Then when the acres of land where the three ditches are located have been planted once, the crops can be planted in the three ditches dug by the original three ridges. "】

["And the original three ditches have now turned into three ridges, and you can take the opportunity to recuperate and restore your own land fertility. "】

["In this way, the ditches and ridges are exchanged every year, and the acres of land can take turns to recuperate and restore fertility, so that the yield per mu of crops can also be reduced year after year. "】

["This kind of sowing is the ridge rest, the year is easy, the ridge is replaced by the ridge, and the cultivation method of the ridge is also called the 'field method'!"

[Prince Fusu divides the towel into two halves, twisting only half of the water each time, and then the other half is taking the opportunity to replenish a certain amount of water droplets. 】

[Under this repeated operation, half of the towel is always kept moist. 】

[When Xu Zi on the side saw this scene, he couldn't help but be excited: "This method is very good! This method is wonderful!"]

[Although this method has not yet been implemented, but theoretically speaking, Xu Zi, who has cultivated all his life, can almost be sure that the cultivated land rotation method mentioned by Prince Fusu, or the substitute field method, is indeed feasible. 】

[Theoretically feasible, then the rest is to really put it into practice.] 】

[Xu Zi's gaze looked left and right, and then fell on Chen Xiang's body and said: "Chen Xiang, your research on cultivation is temporarily handed over to other peasant children to be responsible, and you are specifically responsible for practicing the Daitian method mentioned by His Highness!"]

[Chen Xiang also immediately came out of the queue and said: "Yes, teacher!"].