Of course, it's going to be soon, it's been planned for a long time. Pen, Fun, Pavilion www.biquge.info promote kapok, and crop rotation. It can be in some barren countryside, relatively remote and poor places. Because of the backward agricultural technology in these places, the productivity has not been high. The local population has not been able to sustain itself in food. Always rely on external input.

However, the promotion of cash crops is carried out in some relatively developed places, such as Shuzhong, Yangzhou and other places. Why? Because of the convenient transportation.

In fact, these economically developed places are places with more flat land and dense water networks, and the transportation is more developed. Only in such a place can we truly and effectively improve the local economic situation, even if it is a place where the economy is relatively developed, what is wrong with going to the next level.

However, in these places, the original production of food is suddenly converted to the production of cash crops, and the production of food will be reduced, and if it is too widespread, it may even cause food shortages. It's terrifying.

In the past, this would be very troublesome, and now it is no longer producing grain, which is a big problem. But that was before. Now Li Chen is vigorously expanding maritime trade, and under his name alone, he belongs to him, and he belongs to the royal sea vessels, there are twenty.

In addition, under his influence, or more correctly, fueled the flames, many wealthy families began to go to sea and build their own merchant fleets.

Li Chen did not deliberately prevent others from poaching his sailors, or even the captain, and even the beam shipyard was returning to its original location and began to sell Li Chen's new ships to the outside world. Originally, I was worried about the leakage of technology and the loss of competitiveness. But after he became the emperor, his mentality changed.

In the past, he was afraid that people would steal his studies, but now he hopes that everyone will have a boat, and the more people go to sea, the better. Could it be that the development of maritime trade only depends on his royal development? It's really not good. To be an emperor, you can't be so petty.

The main key is that the Japanese and the Arabs should not learn this shipbuilding technique. Li Chen is very strict about this, but the leakage of technology may be inevitable. After all, not everyone who buys a boat is aware of secrecy.

As for how he contributed to the troubles, Li Chen opened Datang, and even the world's first navigation school, whose function is to teach captains, sailors, and various positions on ships, and is also responsible for continuous research on advanced navigation technology, which is fundamental. In fact, as long as the Chinese do not have internal strife, technology will always continue to flourish, continue to research and develop, so that they can not keep up, this is the fundamental way.

Also, the change in mentality will not allow smuggling. It can't be like the Ming Dynasty, where the sea is banned, and the result is that those big families take advantage of it, rely on the official face, blatantly smuggle, and go to sea. As a result, Jiajing strictly forbade the sea, and those big families actually colluded with pirates, pretending to be Japanese robbers, and wantonly plundering the southeast coast for a generation.

Li Chen formally established the Municipal Shipping Division, and many ports were opened, unlike before, only Guangzhou and Lingnan had municipal shipping envoys. Several ports were opened, allowing free access to the sea. Export sales do not need to be taxed, but they must be declared and sampled.

Imports are subject to taxes, but the taxes are much lower. In the past, the tax was as high as 30 percent and 5 percent, but now it has been reduced to 10 percent. However, tariffs have not been reduced because of this, but because of the reduction of tariffs, maritime merchants have surged, and taxes have increased year by year.

What does this have to do with imported food? The relationship is big, Li Chen has a very simple stipulation, there is a certain amount of grain transported by a ship, and one percent of the tax is paid. If not, the tariffs will not change.

Do you say that the Maritime Chamber of Commerce will not carry it? Li Chen did not stipulate that the amount was too high, and even allowed the amount to be bought and sold. How to buy and sell? It is a ship, according to the regulations, how much grain must be carried, and I carry more than that, and I can sell it to those who do not carry it.

As a result, there is a large influx of cheap grain from overseas. Many maritime merchants only go to the South China Seas. Transporting spices and other goods, and by the way, carrying more local rice, and selling the amount to those who have traveled all over the world. So there is no need to worry about food at all. Only then did he dare to vigorously promote it.

However, promotion is promotion, Nanyang rice, Li Chen himself does not eat. It's not that it's poisonous or anything, after eating it once, I think Nanyang rice is cheap and very cheap, because it grows fast, but the taste is poor and not delicious.

Well? Li Chen doesn't eat it himself, but gives it to the people. Although it is non-toxic, is it not authentic? Of course not, it was not Li Chen who deliberately let the people eat food with a poor taste, and there were several reasons for the introduction of a large number of Nanyang grains. In addition to the gap in the balance caused by the reduction of grain production, as mentioned earlier. There are several other factors.

If the taste is poor, the habit will be good. What's more, many people don't have so much rice to eat, the taste is poor, but it is cheap and abundant, enough to eat. First ask to eat well, then ask to eat well.

Again, because of the poor taste of Nanyang rice, it highlights the good local rice. In some places, the soil and water are good, and the rice produced is also delicious, which can just be turned into a special rice, and the price can be relatively increased.

Just like Taiwan, there are a lot of Ikegami rice, Koshihikari rice, and Japan has Akita rice, which grows slowly, and with excellent water and soil, it tastes good. This can be sold as a high-end rice.

Not all places are suitable for growing cash crops, which can benefit many farmers who stick to rice farming. Rice is no longer just a food, but has become a high-class food. High-grade rice, of course, has to raise the price. This is tantamount to increasing the income of the peasants, and the income will be better than before just by planting rice.

For the sake of agricultural issues, Li Chen is really concerned. In China, agriculture is a top priority, both ancient and modern. To put it mildly, in China, agriculture is fine, everything is fine. Of course, agriculture involves many aspects, not just farming.

Return to the main story, in places with convenient transportation and developed economy, promote cash crops. Basically, there is no need to worry about food. If there is any major fluctuation in grain prices, there will soon be merchants from other places who will transfer grain in, and there is no need for any regulation.

So, can that rich man not be tragic? In fact, he was right, Shu is relatively closed, and it has always been a grain-producing area, and most of the time, it is to transport grain like other places. Suddenly, I stopped growing grain, and instead planted sugarcane, which I couldn't eat enough. All of a sudden, from a grain-producing area to a grain-deficient area, this will not affect Shudi, even Chang'an will be affected.

Shu was closed, and when problems arose, grain was transported from other places, and I didn't know when. He even counted the warehouses of the government, and planned to wait for the government to open a warehouse to release grain, and he would buy a large amount of it and continue to hoard, and when the time came, he could make a lot of money. When the government reacted wrong, it was too late.

It's a big business with a small amount of money, so he did it, and he felt that he thought about it a lot, and considering all aspects, everything was not a problem.

Therefore, when the price of grain rose more than five times, and the government began to sell a large amount of affordable grain, and even a boatload of rice was brought in, he thought that the government was playing tricks, how could the government have so many grain reserves.

As a result, he bought a large amount of money and ended up losing more, which was just worse. When he found out that the government was really not afraid of people buying, and there was no restriction on purchases, and almost every household bought enough rice to eat for half a year, tragedy happened.

In order to break the lies of the government, he asked all the family members to queue up to buy a large amount of cheap grain, while snickering at the fact that the government did not even limit purchases. But he was horrified to find that when he was too shy to buy food, the government was still selling.

Even, there are many grain stores in the city. It's not that there is nothing to sell, it's that everyone doesn't have to buy it for a short time. So, the tragedy happened, he couldn't pay the money anymore, and he hoarded food at a high price, and now he can't sell it at all. Collecting debts has to block the door all day long, making it difficult for him to live in peace.

This situation lasted for many days, and after many days, he finally quieted down, because even Chang Pingsi came to the door and directly put him in prison in the name of disrupting the market and hoarding Juqide, so no matter how those splashes troubled his family, at least he was quiet and had a coffee table.

The only fortunate thing is that he is not the only one who has a coffee table, there are many people who really have a "vision" like him. was also forced to go into debt, and was also approached by Chang Pingsi. This is not very inconspicuous, it does not show the mountains on weekdays, and it does not show the water, and he opened his big mouth.

Shu is relatively closed, and it is not easy to transport a large amount of grain from the outside, but it is just not easy. As long as you prepare in advance, plus you can find food, it is not a problem at all.

When food prices fluctuated, Tsunehei noticed it. Unlike the departments that were slow to respond in the past, Chang Ping Division was transformed by Li Chen, and he usually monitors the price fluctuations of various necessities for people's livelihood. It's not that you have to wait for something to happen before you react.

Although the places they mainly monitor are some relatively remote places, they take care of these places that are vulnerable to famine. Like Jiangnan and Shuzhong, not to mention the absolute wind and rain, but the transportation is convenient, and it is usually less valued.

But as soon as Li Chen had already made a decree to pay attention to them, there were also the agricultural judges and the representatives of the royal firms. As soon as grain prices fluctuated, the mechanism of affordable prices was activated, and grain began to be mobilized from the preset number of warehouses.

When the price did not fall but rose, and it was determined that someone was raising the price, Chang Heiji began to investigate. On the one hand, the investigation began, and on the other hand, the preparation of grain in large quantities began. The result is a tragedy for speculators.

First, I didn't expect that the imperial court would react so quickly, and secondly, I didn't expect that there was a shortage of grain here, a shortage of grain in the whole country, and there were overseas imports. The tragedy is not unexpected. If the circumstances are minor, they will be heavily fined. It's so serious, in addition to the fine, I was also imprisoned,

These are all things that will happen in the future, Li Chen doesn't know yet, and even if he knows, it's a trivial matter, and he doesn't care at all. He put down the last piece of music, which was a report on the promotion of biogas digesters.

The Chinese have long known the role of composting. As far back as the Western Zhou Dynasty, they consciously used rotten weeds to fertilize the fields. The Book of Songs. In the Song of Zhou, there is "the decay of the grass, and the grass is mao".

The Book of Rites. "Moon Order" also mentions that the use of high temperature and rainfall in summer to rot weeds, "can be manure fields, can be beautiful on the territory", and later, it is the application of green manure, taking advantage of the farmland, planting green manure, no longer waiting for weeds.

By the time of the Tang Dynasty, dung had long been known to be used. The Han Dynasty has known for a long time, and in the Tang Dynasty, there was a professional collection of urban water and fertilizer, which was sold to farmers for occupation. When he was in Xu's house, although he was embarrassed, Li Chen still escaped by relying on this.

However, these were not enough, and Li Chen began to promote biogas digesters. Let the people concentrate and ferment all kinds of rotten things. There are many reasons, first of all, if human feces are not fermented, it is easy to infect some parasites to others. Secondly, for the sake of biogas.

Biogas can be used to cook rice and boil hot water. At present, coal stoves are beginning to be widely used in the city, but in the countryside, most of them still burn firewood.

The promotion of biogas digesters, in addition to environmental protection, reduces the number of villagers to cut down trees for heating, and finally the most important purpose is for gunpowder.

Gunpowder requires a lot of saltpeter, and the other two are good to say, there is a lot of sulfur in the volcanic area, and there is a lot in the neighboring countries. There is also a lot of carbon, but there are too few saltpeter mines. Without the modern chemical method, before the mass production of pure nitrate, human beings relied on feces.

Saltpeter is extracted from manure. For example, there is a desert in South America, because birds pass over and excrete, and over time, the nitrate content is unusually rich, so the place belongs, and a war broke out in South America, this desert, just on the border of several countries.

In addition, in a certain island country in the Pacific, tens of thousands of years of seabirds have contributed guano, which also allows the people of that island country to lose their personal income to advanced countries just by selling these.

Therefore, Li Chen had no choice but to use his brains on everyone's excrement. The promotion of biogas digesters is to obtain old soil by refining the biogas digester to obtain nitrate.

This is not funny, in fact, the British have also issued a similar decree, for the sake of nitrate, the people of the whole country, even the aristocracy, must also have soil latrines, just to refine nitrate.

Of course, this alone is quite boring, Li Chen tried his best to promote the biogas digester, and by the way promoted the knowledge of fertilization that was not available in the Tang Dynasty, and mentioned it again, thanks to the fact that he had gone to ancient Chinese agricultural history, things still remember.

In the Song and Yuan dynasties, fertilizers had to be further developed, such as river mud, sesame cake, and inorganic fertilizers lime, gypsum, salt and sulfur. Adapt to different situations to get land.

For example, the application of lime in a low field can warm the soil and help seedlings grow. It is best to apply hemp and fire manure in seedling fields, but large manure can not be used, especially direct irrigation of raw manure.

Planting ramie, using donkey and horse dung can generate heat and cold, planting lilies and leeks with horse manure is particularly suitable, planting yams, avoiding human dung and urine, suitable for cow dung, wilt, etc.

Li Chen didn't know, he actually remembered these things, the class was very mixed at the beginning, on the one hand, it was really interesting, on the other hand, he also wanted to have a very cool and easy class, but he didn't expect to remember it now.

'Thank you, professor of Chinese agricultural history, although I forgot your name. After reading all the chapters, Li Chen got up and moved comfortably. I'm going to meet a few prime ministers and give them lessons. (To be continued.) )