Changsun Wuji has a good character. Although he is quite sinister, he has never heard of owing others that he will not pay back his debts. He told Li Xiao that 2,000 guan, so the Changsun family was in charge of the house that day and brought several large trucks of money from the opposite village.

There are both copper coins and silk, and there are even some gold and silver.

Li Xiao took the people seriously and counted them three times, and after clicking them twice, he confirmed that the number was correct, just two thousand guan, and then he smiled and asked the manager to take them home.

To farm, you have to have fertilizer. It is not enough to pick up some cow dung and sheep dung eggs from the field. Lijiazhuang has only a few people, and those toilets can't produce much.

Li Xiao was even more reluctant to pay for it to buy it at Taipu Temple.

Do you have to buy this thing?

How could he suffer a loss if Li Xiao wants to do things? The horse manure in Taipu Temple is not only expensive, but also difficult to buy. If you have to buy it, you have to queue up and you have to owe everyone favors.

I simply went to Chang'an to build some toilets, and then got a few feces to collect manure, and went to various lifangs to pick up the feces. Some people were willing to help people clean the toilets for free, so I guess everyone was too happy.

This manure is a treasure. It is good to transport it back and build a few manure tanks. After fermenting, add mud and ash to make dry manure. It is just diluted and pulled to the ground by directly diluting it. It is all good things. In the era without chemical fertilizers, organic fertilizer is the king.

With wood ash, it will definitely increase production.

If you go to the fields to build some biogas pool, throw feces, urine, some grassroots and leaves into it for fermentation, you can also get the worm liquid.

This thing is not only a good fertilizer, but also can be used as an insecticide or even as a herbicide.

Why is the high grain yield in later generations? Isn’t it because of the excellent grain seeds and sufficient fertilizers, and then insecticides. The farming of those large farms is mechanized, but in fact it is very extensive in management, similar to the planting at this time. It can only be achieved by fertilizers, seeds, and insecticides to ensure high yields.

There is no potion or fertilizer, so you can only rely on organic fertilizer.

Autumn is about to sow, and the wheat fields that have just been harvested have begun to plow and turn over the fields. If you can water some manure in the fields as base fertilizer, it will definitely greatly improve the fertility of the fields, promote the germination and survival of seeds and the healthy growth of young seedlings.

A 2,000-ton coin can buy more than 300 big bulls, which is a lot of money, and you can even buy a considerable luxury house in Chang'an.

With this money, it is still no problem to build some toilet in Chang'an City.

He was writing and painting in the study and designing the style of the public toilet, but Li Zhi came.

Li Zhi still came in contempt, with only a dozen followers.

Li Xiao came to greet him after hearing the news. After looking at the dozen followers, he knew that there must be a large guard troops nearby.

"I heard that the wheat produced by Sanlang's family produced 5 stones per mu, which is very impressive." Li Zhi sat in the hall with a smile and ate watermelon.

"It is indeed a per mu yield of five stones and two."

"Is there any secret here? I heard that your wheat seeds are excellent, where do you get the new wheat seeds?" Li Zhi asked with concern. If it is a wheat seed problem, wouldn't it be auspicious like corn? If all the wheat fields in the Tang Dynasty were replaced with this kind of wheat, wouldn't the grain output of the Tang Dynasty have increased a lot?

Li Zhi came in disguise and did not want Li Xiao to treat him with courtesy.

"When I go back to your Majesty, wheat seeds are not new foreign seeds, but seeds carefully selected and cultivated in existing wheat seeds, selected and cultivated, and maintained water and fertilizer. Therefore, the yield per mu was five stones and two stones. Compared with previous years, this land has increased by about 60%."

Originally, the yield of this land was more than three stones per mu, but now it has suddenly surged to five stones and two stones, nearly doubled.

"Select the best, cultivate and cultivate in depth, and keep water and fat? That's that simple?"

"Your Majesty, if you can do these nine words, you will definitely be able to increase your output a lot."

"It's easy to say, but it's difficult to do it. Just say that it's not easy to cultivate deeply. Although my Tang Dynasty has been stable for many years, not every family has a ox. Many people still rely on people to carry the plowing fields. How to talk about deep plowing? Fortunately, the curved plow you invented is that you only need one ox to plow the land as much as two oxes, and the plow is deeper. Even if it's a human being, it's much easier than before."

The key to deep cultivation is to have large animals, cattle, horses, mules, and good farm tools. This is not only a more advanced plow like a curved plow, but also enough iron.

The plough of the curved plow is also made of iron, and it must be used well, otherwise how to plow deeply and turn over the soil. But iron has never been a cheap material. This is a national strategic material. Iron must give priority to the supply of weapons, armor and weapons in the court.

It is no problem to fully promote the curved plow, but it is not easy to install iron plows on all curved plows. People cannot afford to have money, and the court does not have such a large iron output.

Li Zhiyou thought of the Quyuan Plough, and the Quyuan Plough thought of iron, and then the iron ore, and the iron management supervisor, the further they thought of the distance.

When Li Xiao saw it, he had to pull it back, otherwise he wouldn't know where to think of it.

"Digging iron ore is not easy, and smelting iron is even more difficult. Although it is so hard to cut wood, burn charcoal and start furnaces and smelting iron, it is difficult to smelve much iron from subway ores a year." Li Zhi sighed.

Salt and iron have always been exclusive to the court, which has been since the Han Dynasty. Although this dynasty followed the old rules of the Sui Dynasty and banned salt, it did not sell salt exclusively, but allowed the people to produce salt themselves and then sell it freely by merchants, there was no ban on iron at all.

Iron is a national strategic material. The imperial court set up many mining supervisors in various parts of the world, specializing in mining and smelting iron. However, in this era, the prospecting and iron smelting technology were not enough, resulting in very low output.

Li Xiao thought to himself, if the iron can be managed privately, I would have some ways to improve my technology, but now the iron is operated by the state, so I am too lazy to spend my brains on it.

"Your Majesty, in fact, it is not necessary to cut wood and burn charcoal. There is actually a natural charcoal in the mountains, which can be burned when dug out. It is actually much more convenient to use for smelting iron, which can save a lot of manpower and time for logging and burning charcoal."

Although he didn't want to get involved, seeing what Li Zhi said was difficult, he couldn't help but remind him. Anyway, he had this knowledge and had no chance to smel iron by himself.

"Is there natural carbonite underground in the mountains? Can I smelte?" Li Zhi stared at Li Xiao, "What is this carbonite?"

Carbonite is coal, and coal is a natural thing formed by charring trees many years ago after being buried underground.

However, this explanation may not be believed by Li Zhi. Li Xiaobing said simply, "Carbonite is a kind of burning stone. It looks black but has strong firepower, which is not much less than charcoal. Find the right veins and continuously excavate the energy source, which can not only be used to smel iron, but also to boil water and keep heating."

"There are such magical things in the world, why have I never heard of them?" Li Zhi was puzzled. He might not believe what others said, but he couldn't help but believe what Li Xiao said.

"Your Majesty, the book Shanhai Jing is called Shi Ni, while Taoist priests during the Wei and Jin Dynasties called it graphite or charcoal, and they also used it to make medicine. However, it is useless to refine alchemy as medicine. Its biggest function is to burn and heat."

The history of coal being discovered and utilized in ancient China was actually quite early, but it was often used for limited use. For example, until this time, coal was more used as elixirs, and like sulfur, saltpeter, etc., it was sold in pharmacies.

Some merchants dig mines and hired people to dig coal for sale.

It is not unusual for the emperor to not know about it.

"Coal is so easy to use? Can it replace charcoal?"

Of course, it is not easy to cook charcoal. You have to cut trees in the deep mountains and then load kilns to burn charcoal. There are many processes, transportation is not convenient, and the efficiency is not high.

But coal is different. If you find a mine, you will be constantly mining the energy source, and the amount is not of the same level.

"Let me ask someone to buy some to try it out," Li Zhidao.

Just try it, anyway, you will know it once you try it.

The emperor was here, and Li Xiao remembered his organic fertility. He was unwilling to miss the opportunity at the moment, so he quickly told the emperor about his plan to establish the 241st team of Chang'an.

"Term 241? Is this a new one?" Li Zhi asked.

"Yes, this business is called the environmental sanitation business, referred to as the sanitation business, which mainly serves the sanitation and cleaning of Chang'an. For example, we plan to set up 600 public toilets in each street and the city gate and the east and west cities, and hire some elderly and weak people in Chang'an to clean the public toilets and streets... From now on, Chang'an Street will be clean and tidy, and there will be no scattering and urine flowing or sewage. Even horses and mules entering and leaving Chang'an City have to install a butt bag behind the ponytail to collect the feces and not pollute the streets."

Li Xiao describes a clean and beautiful street in the future.

"Why do you have this idea?" Li Zhi didn't expect that Li Xiao would still have the heart to think about these small things.

"In fact, this matter is not the idea of ​​the minister. It is the idea of ​​the Grand Tutor Sun Gong, Yu Gong, Han Gong, Chu and other prime ministers before retirement. Although they retreated, they still want to contribute their light and heat to the court, and to do something practical for the people of Chang'an and do their part to the beautiful imperial capital and to do their best to the towering imperial city of the beautiful imperial capital..."

It was actually planned by Changsun Wuji and the others. Li Zhixia thought that there might be a deep meaning in it.

But Li Xiao said that although the matter was planned by several old ministers, the few who were old and had no energy to take care of it, so they paid 2,000 guan of money and handed over it to the ministers to deal with the matter.

"You have been in contact with the Grand Tutor and the others recently?" Li Zhi said something.

"I help Your Majesty care for several old masters." Li Xiao also had something in his words.

I know you are not at ease with them. I will help you monitor them. I am a loyal minister, please praise me.

Li Zhi nodded, and the one who knew me was indeed Li A San.

"Just leave this matter to Yongzhou Prefecture, you should supervise the corn." Li Zhidao, how could a big talent be used in slight use?

"If this matter is handed over to the government office, I am afraid that although the original intention is good, it will be inevitable that the situation will change over time. It is better for the people to do it privately. In fact, as long as your Majesty gives the Yongzhou office a decree and asks them to approve the floor for the public toilet to me, I will naturally do other things, and there is no need for the court to pay a penny."

Li Zhi laughed, "I'm not a small tone. I don't have to pay a penny in the court. Can you get things done?"
Chapter completed!