"This thing is good," Cheng Shimeng and the others circled around the mosquito coils.

Under Zheng Lang's repeated indoctrination, several people knew that the root cause of malaria infection was mosquitoes and some unclean water. Therefore, once you are bitten by a mosquito, you are afraid of being infected with malaria.

"Its main ingredient is the plants I asked the Great Food Merchant to bring, and I plan to set up another prison." Zheng Lang said.

Pyrethrum is pungent and easy to grow.

What bothered Zheng Lang was that many businessmen brought the wrong seeds, half of which were not real pyrethrums, but fortunately, Zheng Lang was prepared, and the regional planting was carried out, and after it grew, its dried branches were dried and ground into powder, and several officials saw it and thought it was some kind of medicine. It can also be used as a medicine for the treatment of scabies, which is not the main thing, and the actual chemical development, the same can appear many drugs. The problem is that things come out, technology can't keep up, medicine can't keep up, and the various diseases mentioned by Chinese medicine are different from the various diseases mentioned by Western medicine, and some chemicals cannot be converted into drugs very well.

Zheng Lang still values the meaning of mosquito coils.

Send someone to study mosquito coils, the incense is known, the proportion is known, but the burning time cannot be mastered.

Finally, after trial and error, there were mosquito coils that ten officials saw today.

It is slightly longer than the mosquito coils of later generations and can burn for six to eight hours, depending on the humidity and dryness. With this time, it is enough to survive the night.

Then he presented mosquito coils to the imperial court, including Zhao Zhen and various ministers, and sent a large number of them. It's not a gift or a bribe, it's a prison.

Set up a supervised production, divided into several equal parts, ordinary mosquito coil materials are simple. It only plays the role of mosquito repellent, and the price is very cheap, which is convenient for the people to use. The latter kinds of spices are added slightly, which not only play the role of repelling mosquitoes, but also play the role of incense burning, and are sold to rich landlords, merchants, large families, and magnates.

The other is to sell overseas.

The countries of the South China Sea, the Great Food and the Tianzhu countries, and some countries also have many rich people. Where there are also a lot of mosquitoes. Except for the mosquito coils used by ordinary people, they are not intended to make profits, and the other kinds are mainly for profit.

At the same time, the technology of secrecy will also become an export goods after the Song Dynasty. At the same time, it can be used for the benefit of the country. It may not be a lot, and it is not as profitable as sucrose, but it is well managed. The profit obtained in a year can be comparable to that of the tea franchise, which can be equivalent to a year's tribute to the Khitan, and may reach more than 600,000 yuan, which is not a small number.

This is direct, because a large amount of sawdust powder, starch, nanshu powder, and pyrethrum are needed, and it will also drive the development of planting, manufacturing, and wood industries, so that more people can have a chance to improve their lives. The state will also profit from these indirect industries.

Zheng Lang sent another batch to the Ping An Prison, the Cane Sugar Supervisor and some big banks with good moral integrity.

Yes, this is another opportunity.

The amount of money raised will not be too much, and it will not account for a large proportion of the development of the two Guangzhous, which is calculated in units of tens of millions. No matter how small a lice is, it's meat. And it's not a lice anymore.

Zheng Lang divided a batch to several officials.

There are not many mosquito coils made, most of them are left as seeds for the next year, and the current output is very small, which cannot meet the demand for pyrethrum in the future.

The appearance of mosquito coils will play a certain role in avoiding the occurrence of malaria.

Zheng Lang still longs for another plant. Cinchona tree, supplemented by this irregular artemisia annua, the harm of malaria in Liangguang can be controlled to less than 20%.

Several people continued to hold the meeting, and it took three days before the decision was made.

began to act, first sent a request to Dali to buy cattle, donkeys, and mules from Dali at a high price. Ma also buys a batch, but not much, Ma is too expensive. There are still a very small number of barbarians in the local area who can use elephant labor, including arable land, but the cost of elephant breeding is high, and Zheng Lang did not put elephants in the plan.

At first, Dali did not pay attention to the fact that there were cattle in Dali, most of which were raised to eat, and the price of Zheng Lang was half higher than the market price, and he took the initiative to cooperate with various tribes to sell cattle to Guangnan West Road. In the end, the price of cattle in Dali quickly became expensive, and even some civilized areas sold cattle to the Song Dynasty regardless of local farming, and Dali controlled it, but it was too late by then.

The number is too large, and where it is placed, there will be riots.

Zhang Kang continued to preside over military training.

It is not enough to have troops at hand, it is necessary to train a militia that can barely fight.

Zhu Shoulong and Gao Weihe presided over the arrangement of immigration, and several other officials divided into regions, each responsible for the planning of their respective areas.

Zheng Lang himself also received the task, Acacia Dai and Lingqu.

Then officials were sent to Jiangnan West Road, Fujian Road and Zhejiang West, as well as to the mountainous areas in the south of Jiangnan East Road, to encourage the people to move to Guangnan West Road. In fact, since the spring, there are still people who have fled to Liangguang one after another, because there are not many projects, it is impossible to use labor for payment, and the hometown is the cultivation season, and there are not many people who come. Many people are waiting for the start of the autumn project on Guangnan West Road, and if they want to move to a foreign land, they must have some money, silk and food and tools in their hands. And if you want to get this, you have to participate in water conservancy work.

However, some people hesitated when they heard that it was the West Guangnan Road, and a large number of tenant farmers moved to the south, and there was a shortage of tenants in several roads, and the landlords were aggrieved one by one, and they had to reduce the rent, raise wages, and retain the people, so these people were reluctant to come.

In the end, as Zheng Lang expected, there were not as many people as last year, only 180,000 households, but only 100,000 households. Some families have an actual population of only two people, and they have just started a family, and before they have given birth to a child, they let their parents divide the family and covet the 40 acres of good land.

Seeing these news, many officials shook their heads, intensively cultivating, two people, and raising a child in the future, can they cultivate forty acres of land?

Anyway, there is a lot of land, and they spoil it, so they turn a blind eye.

But the length of the migration was beyond everyone's expectations.

As the development of the two provinces became more and more successful, in the end, the second development was not organized, as Yu Jing said, on the contrary, a large number of people continued to flock to the two provinces every year, and the population became more and more dense, and the officials of various prefectures and counties successively resettled the remaining water conservancy development and resettlement with these people.

This also made the migration last for more than ten years, and the most bitter were those landlords. In the end, they are about to offer the tenant farmers as their ancestors, otherwise they will have to move south. It was not only the Jiangnan of the Song Dynasty that was affected, but also a small number of people in the north, a small number of people in Dali and Jiaozhi, who also secretly moved to Liangguang. Even after a dozen years, a small number of people continued to migrate south, but by that time most of the plains and river valleys were gradually becoming more and more solid. Most of the interhills and mountainous areas remained, and the number of people migrating gradually decreased.

But this year, the number of people who have migrated. made Zheng Lang feel a little insufficient. Historically, the area of the Southern Song Dynasty shrank, so they had to send people to develop the two Guangxi provinces and make some supplements. Poor effect. In the Ming and Qing dynasties, the scale of water conservancy really gradually expanded, for example, there are 163 Pitang in Gaozhou, which is not large, and there are 27 embankments and polders in the barrier field. However, there is no national development like Zheng Lang, which has led to many shortcomings. During the Jiajing period, Zhang Yue, a good official, guarded Lianzhou, widely regarded as Pichi, taught the people to grow crops, and at that time, the benefits of the field were opened to the public. However, at the beginning of the Qing Dynasty, the local people still did not know how to divert irrigation, and even the land near the water could only be cultivated as land and planted dry crops. It has not been cultivated into paddy fields. Until the Qianlong period, the prefect Zhou Shuoxun specially hired craftsmen to build a waterwheel for demonstration, and the governor Bandi made a waterwheel and distributed it to Hepu County for a trial performance, and also recruited people who were familiar with agriculture in the south of the Yangtze River to come to the vicinity of Lianzhou Mansion to develop 50 acres of paddy fields to advocate the rate. Only then did the villagers learn about the method of paddy field cultivation and attach importance to cultivating paddy fields. Later, Lianzhou Mansion built Pitang Weir Dam more and more, "until Jiaqing so far, the method of farming is more precise, where Haikuang and slope land can be transplanted, that is, the Ling Pupae Thin Field is mostly cultivated with ash manure, so its harvest is often increased." "It's not a dung thing before. Today, plough the fields in winter to dry the snow, and in the spring to plant seedlings,...... Those who attach to the mountain dig ditches and build dams, dig wells and open pools in the original, and those who are close to the water make cars to make oranges or irrigate. ”

That is, Zheng Lang made a direct transition from the Song Dynasty to the middle of the Qing Dynasty, and the scale was even more magnificent.

One point that cannot be ignored is that the barbarians do not know how to plant agriculture, and they need the Han households to take the lead and guide them.

The more Han households migrated, the more mature the agricultural development became, otherwise the barbarians themselves would not be able to drive the agricultural development of Liangguang by making a hundred Dujiangyan in Liangguang.

Another area of Guangnan West Road, the main area of the development of the Yujiang River Basin, in the Ming Dynasty adopted the policy of recruiting people to reclaim, resettlement and reclamation, which is quite similar to Zheng Lang this time, but the time is longer, the scale is very small, so that the cultivated land area reaches more than 7 million acres, Yongzheng changes the land and returns to the stream, so that the population from other provinces can move into Guangxi in large numbers, and the advanced production technology of the Han nationality is all brought, so that the cultivated land area of Guangxi reaches nearly one million hectares.

It is still Han households, and half of them are forcibly relocated.

But Zheng Lang didn't dare to force the Han households to come over, so he had no choice but to develop these populations.

When he arrived at Lingqu, he received an edict allowing Zheng Lang to set up a sleeping prison in Guizhou, and Zhao Zhen personally named the mosquito incense, sleeping incense.

Seeing this name, Zheng Lang felt a little strange in his heart, and he thought of sleeping pills......

I almost thought of euthanasia, this is the emperor's name, what should I do, the sleeping incense will be the sleeping incense.

Put down the edict and check the Lingqu.

The maintenance of the Ling Canal is divided into three parts, water diversion, water storage, and irrigation. Steep doors. Embankment.

The southern end of the Ling Canal is the upper reaches of the Li River, and the northern end is the upstream irrigation of the Xiangshui River. But more than 30 miles west of the source of the Li River, there is still a river, the Xun River. If a river is dug to cut off the water of the Xun River and lead it to the source of the Li River, some dikes are built, and some steep gates are built at the junction of the Ling Canal, the water level of the Ling Canal can be raised, which is conducive to navigation and irrigation.

However, after looking at it, the project was too big, and the money that could be used in his hand was very tight, and he finally abandoned this tempting idea.

The remaining first part can only have two parts: water storage and irrigation.

The means of water storage include excavation of collapsed canal sections, digging depth and width, and then regulating through steep gates.

The more steep gates, the smoother the current, but the more steep gates, the management costs will be high, the cost of navigation will increase, and the sailing speed will be slow. Therefore, the setting of each steep gate is very important.

After turning back and forth several times, Zheng Lang still looked at the west, longing for the water of the Xunjiang River. But after calculating the cost in mind, the idea was abandoned again.

After repeated deliberation, there was no increase of 10 steep as in the Qianlong period of Echang and Tang Suizu, so that the number of steep gates reached 32 steep, 10 bridges were built, and only a few steep were added, so that the number of steep gates reached 26 steep, and the number of bridges reached 8.

It is not over, but several forks will be built to store water and discharge flood water for irrigation, and to ease the flow rate of the river.

Finally, there are stone dams, which are now mostly earth dams and collapse. The stone dam must be used, and later the repair was carried out with the Qian Yue cage stone method and the Ming Dynasty fish scale pond method two methods to build the stone dam. The fish scale pond method is the most robust, but it is also expensive. It is impossible to use the fish scale pond method in all places, even in Quang Nam East Road, only a few sinister places are used in the fish scale pond method, and the cage stone method is still used in other places. Use bamboo basket sac stone, inlay embankment, bag deep river channel. Not a simple project. Without the practical experience accumulated over the years, Zheng Lang would not have been able to plan the maintenance plan of the Ling Canal.

is only a spiritual canal, Zheng Lang has been back and forth three times. The inspection lasted for two months, and more than 60 officials and more than 200 soldiers were mobilized.

After designing the spiritual canal, I went to Acacia Dai.

Dai refers to the weir on the river, before the Tang Dynasty, there is no steep gate (navigation gate) on the artificial canal, there is a slope on the dai, the ship passes the dam, and it is necessary to use manpower or animal force to pull. At the beginning of the excavation of Acacia Dai, the water was diverted from east to west. After the dai is separated, such as relatives are far away from the world, and acacia is like water and remembers each other, which has this beautiful name.

It already existed in the Tang Dynasty, but it was called Acacia Water. Just to meet military needs, it was built hastily, not only did it not have a steep gate, but it was not dug deeply, and the design of the river was unreasonable until the Ming Dynasty. Only further maintenance, become Acacia Dai, also officially recorded in the annals of history, but the design is very unreasonable, the silver carp steep area "rushing rapids, the base stone is mostly decadent", "the rapids up and down, the disparity is close at hand, the stone beams are choked, and the ctenophores are more than the hindrance". Yongzheng Ortai passed by the silver carp, about was frightened by the river rapids, reported to the imperial court, Yongzheng issued an edict Ortai and Jin Hui to visit the survey, build the steep water of the 20, chisel to obstruct the ship of the stone 386, the project maintenance cost a lot of manpower and material resources, it took a year to complete.

The acacia water cultivated in the Tang Dynasty is definitely not good, Zheng Lang wants to repair Acacia Dai is equivalent to starting from scratch, and the project is even bigger than Ortai's. But once it is completed, its function can be at least a quarter of the Ling Canal, and the ships from the huge Liujiang River basin no longer have to go east to Wuzhou, from Wuzhou to make countless detours, go up the river, and arrive in Guizhou. Moreover, this dam can also be used as irrigation.

After going around, the scale of immigration is not as large as last year, Zheng Lang couldn't help but sigh: "There is still less labor." ”

I had to write to Tian Yu and Yuan Xuan, asking them to allocate some labor from Guangnan East Road to support.

In October, he returned to Guizhou, set up a sleeping prison, and obtained more than 1.6 million yuan from the sale of deed shares. Not a small number, but far from enough. If another five million yuan is given, Zheng Lang will dare to revise the maintenance plan of the Ling Canal and divert the water of the Xun River to the source of the Li River. But I'm afraid it can't, once the repair is completed, it can't be recited, otherwise there will be rework, and the waste will be serious. The lack of immigrants and the Lingqu have become the two major regrets in Zheng Lang's heart.

It is difficult to do practical things, and two things that happened in the court also verified this truth.

Ouyang Xiu recommended Wang Anshi as the judge of the herdsmen, I don't know if he values Wang Anshi's ability, or if he wants to improve the relationship with Zheng Lang. Pavilion Inspector Shen Kang also asked Chen Zhizhong to give the post of herd judge, Chen Zhizhong said: "Wang Anshi resigned to call for the test, so the court is superior and sent, and the court set up a pavilion to treat the world's talents. ”

As a courtier, you are a virtuous position, why are you so shameless?

Shen Kang gradually retreated in shame, and at this point, Zheng Lang's three students, Wang Anshi, Sima Guang, and Lu Gongshu, all entered the court.

But not this thing.

The waiter Yang Yongde asked Cai Bianhe to buy a water delivery shop, Yang Cha did not agree, it was inconvenient to hand over the water, Yang Yongde was displeased, and many parties resisted, Yang Cha was annoyed, and Chen Zhuang checked the underwear library to accumulate rulers and silk, and the inner library was not properly bought and paid, and the people in the incense field took begging money and things.

That is, since the beginning of this year, the eunuchs in the palace have become more and more lawless and have done many bad things.

Yang Yongde simply falsely accused Yang Cha, resigned from the guards, and ordered Kaifeng Mansion to investigate these implicated guards. Fan Zhenyan Yang Cha was innocent and did not report it, and Zhao Tuan also said: "If Cha is guilty, it should not be transferred to official qualifications; If he is not guilty, he should not be reappointed. Begging for a new life. "I don't report it either.

With Yang Cha as the head of the household, he raised the collection of jubilee affairs. Wang Gongchen is the new third envoy.

Then to Wang Ding, Wang Ding presided over the murder case of following the pious road, and moved to Huainan, Jiangsu, Zhejiang, Jinghu to prepare and ship the deputy envoy, Yongde please along the Bianzhi auxiliary boat, the year can save 60,000 deaths, Ding Yi thought it was impossible. Wang Ding's advice is right, although the pawn has to change the boat every year, that is, there is a boat to pull, and there is no boat to rest, and you can take turns to rest with each other. Moreover, there was a law of exemption from servitude, and some servants were hired to replace the work of the pawns, but once the bunks were set up and became the norm, the pawns would become drudgery, either if these drudgeries were stripped of the cost of saving, or the state would create a lot of waste. But Wang Ding had a good plan, and the government and the people thought it was convenient, and Yang Yongde was helpless. So the other man was unlucky.

Xu Yuan.

When Xu Yuanchu came to the south, he was also like Wang Ding, iron-faced and selfless, offended many people, and acted inconveniently. So things became sleek. Send some gifts to the magnates in the capital, and relax a little about some heroes, and the giant ship with it. But there are so many boats, and some people can't get them. However, the top is happy, and Xu Yuan is gradually becoming more convenient to do things below. Therefore, he has been in charge of Jianghuai for 13 years, and he has made many contributions.

But I don't know how this news is, so I let Wang Yaochen know.

Two things happened one after another, and people couldn't help but think about Yang Yongde.

Wang Yaochen wrote a memo and said these things about Xu Yuan. derogatory to Yangzhou, but Xu Yuan said that he was free of course and had no guilt.

What to do? I had to do this in order to do practical things and reduce trouble, so I have a clear conscience.

Yang Cha and Xu Yuan have been demoted, but did they do it wrong? Yang Cha can't be tough, Xu Yuan can't be gentle, so how to do things?

Zheng Lang connected these two things, wrote a memo, and then said a sentence later, it is difficult to walk! It's hard to walk! Many divergent roads, where are you now? The wind and waves are at any time, blowing the sails and hitting the mast to bury the sea. Li Bai's pride in "Difficult to Walk", the latter sentence made him tamper with a mess, and then directly presented this piece to the court. (To be continued.) If you like this work, you are welcome to vote for recommendation and monthly passes, and your support is my biggest motivation. )