But it is also true that after the establishment of the school, the imperial court subsidized a lot, including the salary of several gentlemen. The salary of only six people reached more than 1,000 guan a year, among which Song Jiu was the highest, and the monthly money, grain and rice were almost nearly thirty guan a month.

There are also rewards from time to time, such as pens, ink, paper and inkstones, various books, tables and chairs, etc.

This is a subsidy for the open and various dark places, such as the dinner fee, the copying fee for the test paper, and the blackboard chalk, which are all small money, but these small money are counted together, and they are not small money. Song Jiu paid for his own expenses. Without accounting, the salary given to him by the court was far from enough.

Students are not fools, they all know what they think.

Mrs. Zhu San pinched Zhu San with a angrily, but Song Jiu didn't take it seriously. The two of them have been joking together since the last year and are used to it.

Sister Qi was still thinking about it: "Where is more than 10,000 kilograms?"

"Sister Qi, don't worry, the output is also high."

"Song Jiu, why do they grow so well?"

"Dr. Yan has many reasons. He has applied three fertilizers and a lot of farm fertilizer. He is not affected by rainy days, has a constant temperature, and carbon dioxide. You should not ask about this." Song Jiu didn't want to say more, and after saying that, Dr. Yan couldn't understand, and even more so, he couldn't understand nouns such as photosynthesis.

“How much will it produce?”

"I don't know much, but I probably won't exceed 80,000 kilograms."

"Are there 80,000 jin?" I was scared together.

Song Jiu shook his head. Some of them were experimental factors, and some were infected with pests or were not protected well, which affected the yield. But the main thing was seeds. It cannot be said that the fertilizer was not good. The fertilizer bought by himself, various fermented manure, wood ash, wheat bran, as well as three fertilizers, nitrogen, phosphorus, potassium, and various trace elements were enough. It cannot be said that it was temperature. It was made of ice and boiling water and human body temperature, from zero to one hundred degrees. Although this thermometer was very strange, it was basically accurate. The temperature was adjusted between twenty-five and twenty degrees through charcoal fire. It cannot be said that it was moisture. More than 20 vegetable farmers who were caring for had planted vegetables for their lives. They were all experts. There was only one reason, that was seeds!

I heard in my previous life that greenhouse cucumbers can produce 30,000 kilograms of high yield. One Song jin was also measured by calculating the density of water. One Song jin in Kaifeng was 589 grams. About the Song jin in Kaifeng was not standard, and the memory was more than 590 grams. Anyway, the error was not much, close to one kilogram and two liang in later generations.

But it is also 25,000 Song Jin.

The fact is that the yield of leeks and celery is a little lower. Song Jiu estimated that it could only be around 4,000 Songjin. It was not as if he had imagined that there would be a yield of 10,000 jin per mu of vegetables.

However, this number scared everyone.

This principle is hard to explain. Song Jiu simply said, "It's high yield, I'll do some more calculations, the cost of glass, the cost of greenhouse itself, the cost of charcoal, and the cost of daily management. For example, in order to keep the cold, wheat straw and plastic film must be added, and a large amount of wheat bran must be added, and the wine lees must be used to improve the resistance to cold. Every day, it is necessary to clear frost and snow, and even some coal stoves must be produced at the corners to prevent the cold air from pouring in and the vegetables are frozen. How much does this cost?

A dozen people and vegetable households were rushing to it, and Hu Xingtou led a dozen villagers to patrol. The cost alone would reach more than 7,000 yuan. My income cannot be calculated based on the market price, but I can only calculate income based on the price of my stockings. A pound of vegetables is only 400 cents on average. I will make a profit. But each experiment costs money, how much will it cost? Furthermore, a larger classroom will be built next year. After all, how much will it be left by next year?"

"Yes, it's too expensive," Dr. Zhang sighed when he heard Song Jiu finish the accounts.

"Dr. Zhang, you can't say that. The main cost is still glass. This is not a good solution to the high cost caused by mass production. The laboratory is studying mass production and has a clue. Once mass production is achieved, the cost of glass per acre will drop to 80 stakes, fifty stakes, and twenty stakes."

"So many twenty stones of glass?"

Song Jiu scratched his head and said he was missing. Twenty silos were probably impossible. The cost factor was determined by sulfur. The court followed his advice and borrowed three sea boats from Wu and Yue. The Song Dynasty did not have a decent sea boat, and there was no sea chart. This year, more than 5,000 stone of sulfur was transported back. Otherwise, sulfur would not be enough. Sulfur was not valuable in Liuqiu. However, the cost of sea boats was too high, and it was a sailboat, which had to be reached with the help of the monsoon. There were risks at sea. From Liuqiu to the capital, the mud was also moved to the gold price. As well as some special sand and other materials needed, the mining cost was not enough, and the shipping fee to transport to the capital was also high. If it were not for his proposal

The court restricted the price of carbohydrate, and the cost would be higher. Therefore, Song Jiu said: "Twenty cents are probably impossible, but forty or fifty cents are still possible. In a few years, the seeds will gradually improve in the greenhouse, and the yield will be further increased. Vegetables grow by themselves, save labor, and greenhouses can also be built by themselves. They are diligent and have no money to get it. They just buy some carbohydrate and some three-fertiliser soil. Then the cost of a mu of land is enough, and it is not even used. The cost of a pound of vegetables will drop to twenty or thirty cents, and selling for forty or fifty cents will be profitable. At that time, off-season vegetables can enter thousands of households."

Everyone nodded together.

This vegetable worth a few cents per pound is not eaten by people, at least not by middle-aged and lower-class people. If it costs for forty or fifty cents per pound, it is still expensive. However, if ordinary people want to open their appetites, they can afford it.

The actual output is still. If it is increased to 10,000 kilograms, the market price may drop below 20 cents, which is unlikely. Moreover, once it is promoted, various pests and plagues will occur. After Song Jiu took the land, he immediately ploughed and exposed the sun, and some pests still occurred. If this happens, Song Jiu has no way to stop it. Once all small and medium-sized vegetable farmers operate, they must be careful in their calculations, unlike Song Jiu who lacks money to buy. This careful calculation has one advantage, saving costs, but if it is not done well, it will cause mistakes and eventually affect the harvest. In fact, it will be far away from the seasonal vegetables of forty or fifty cents per kilogram, and the most realistic thing is that they will drop to about 100 cents.

The next day it snowed.

Song Jiu went to Hezhou first, and the work in Hezhou was stopped, leaving only some disaster victims and guards patrols. Song Jiu went to see the victims first. In fact, the victims spent more money, and it seemed that the wages were less. The subsidies such as clothing, food, fabric, coal, shed, salt and vegetables were combined together, and they spent more money than the wages of the civilians in the Two Rivers. I don’t care about this. I just treat it as a good deed, but I’m afraid that the victims will have an accident.

The scene I saw was not bad. Many victims were cleaning the snow on the shed. Coal stoves were grown in the shed. Although it could not be said to be warm or cold, Song Jiuyi walked past the village and told them to open the door from time to time to change the air and breathe, otherwise they would get poisoned by coal. They rode their horses toward the steel supervisor.

A few days later, Song Jiu took a few things to Kaifeng Prefecture.

When I saw Zhao Kuangyi, I first took out a thing, an iron shaft and two bearings. Zhao Kuangyi had also seen it on Hezhou, but this bearing was different, and there were ten steel pillars outside. Zhao Kuangyi said: "Song Jiu, what is the purpose of this thing?"

Song Jiu took out two more wheels from outside and threw them on and turned them.

"This is good..." Zhao Kuangyi's eyes lit up.

Song Jiu talked about the cost of driving and the transportation cost of this era hindered the development of many things, including the cost of glass. As long as there is this cost of driving and driving, its price will never be cheaper. But there is no good idea. It is a joke to talk about steam trains, and the steam engine is not complicated. If more than ten years later, a large group of students who are proficient in matter-based learning will grow up and the steel output will surge. The quality of steel can be kept up. But the steam engine on the train is not simple. Besides, there is so much iron to pave the railway? No need to spend too much, just pave a railway from Kaifeng to Chang'an. It means no matter how much, and the cost of dealing with the Xixia people will be reduced by half in the future. Even the Jin people invaded the Central Plains and could immediately shrink to Guanzhong defense. But is it possible?

Song Jiu didn't think about these things at all, and it was just a fantasy. Even if it was the railway from Sanmenxia to Chang'an. After thinking about it, Song Jiu still thought about it based on the original basis.

Nowadays, transportation is one is a ship and two is a car. The cost of the ship is still acceptable. In addition to crossing the ocean, it is not a car that is heavy. It is not that the car is bad, but some big cars can also pull more than a thousand kilograms. However, this kind of clumsy wooden wheel has two disadvantages: one is that the friction is high, which makes it difficult to pull, and the other is that the loss is serious, especially the axles. Although some parts are replaced by iron or ceramic, the damage rate is still very serious and it also affects its speed.

It is possible to marching one hundred miles a day by one person, but it is highly dependent on logistics supply, so large troops can only marches thirty or forty miles a day. The speed of civil transportation is also not as fast as possible.

So Song Jiu improved the axle and directly used bearings.

The bearing does not look complicated. The inner steel hoop and outer steel hoop, plus steel balls, asphalt and grease can replace lubricating oil. The upper steel hoop can be made tighter by thermal expansion and cold shrinkage.

But there are many troubles. Unlike the bearings on the crane, they are all very large, and the problem of half a millimeter of error is not too serious. Shrinking to the carriage, the outer steel hoop and the steel ball cannot be missed by one millimeter, and the steel ball itself cannot be missed by one millimeter.

And the round throwing technique of steel balls is also a difficult problem.

In the past, the bearings on the crane were solved by the mold and manual mode, with serious waste rate and almost one-time molds. If they are reduced, the accuracy will be higher, and funds must be invested to continue research and development. Otherwise, even if they are manufactured, the price will be too expensive.

“How much does it cost to develop it?”

"The two great kings, the ministers don't know, but if they want to develop them, the court must reward them. With the heavy rewards, there must be good strategies. Once one good strategy is accumulated, one can succeed. Its significance is very important."

"I am not a fool, can't I see it?" Zhao Kuangyi walked a few steps back and forth. This was the benefit of Hezhou development. If there were no Hezhou, there would be no such bearing. Thinking about it, he said: "Song Jiu, can he develop it? How much money will it cost at most?"

"The second king, Weichen has built many bearings in the Steel Supervision Bureau, and is not unfamiliar with its craftsmen. Weichen thinks that it is unlikely to reduce its cost to three or four times the ordinary steel products, but it will be reduced to about ten times the ordinary steel products, craftsmen will definitely have a way. It is still expensive to use more than ten times, but it is not large in quantity, and the price is acceptable. As for how much money is, Weichen dare not say, but he can allocate some money in the Steel Supervision Bureau to support the craftsmen to research and develop and think about it in his spare time. In this way, there will be no more money, even if the reward money is added. Collecting ideas, there will be ways to reduce the cost. Weichen has many affairs and is far from the Steel Supervision Bureau, otherwise Weichen can also participate. But if the court is interested, Weichen can ride horses over and take a look from time to time and come up with ideas."

Zhao Kuangyi rolled the wheels with his feet and said, "As long as the cost can be afforded, I can make the decision, but Song Jiu, you forgot one thing."

"What's up?"

"It's time to leave."

"Where do you really want to go to Liangchuan?"

"Jun is not joking, is the emperor joking with you?"

"There is no need for a gentle minister on the two rivers, and it is useless to go there," Song Jiu said bitterly. Han Chongyun told the inside story. The two rivers were not a problem of refugees. He brought Wang Quanbin back and replaced him with Cao Bin. A few good officials went down to calm the people's hearts, so the refugees could take the initiative to return home. The problem was that the Song Dynasty had become a big group in Liangzi in Liangchuan this time, and if he was not careful in the future, he would stab a hornet's nest. It was not necessarily Zhang Shun and Li Xiaobo, but Wang Shun and Zhang Xiaobo could do it. As long as the officials were not good and one person took the lead, the people were likely to rise up.

"Go and have a look. Mr. Lu mentioned it twice in the memorial. Let you go and take a look. Don't worry, the rebellion of the two Sichuans has not yet been quenched, and the court will also send capable soldiers to protect your safety. You are very precious from the bottom to the bottom, and even one hair falls off with steel, expensive cucumbers, eggplant, glass, buns that have always been money, and a lot of copper smell..."
Chapter completed!