A clean street environment and excellent drainage system can solve urban sanitation problems to the greatest extent and reduce infectious diseases. At the same time, the concentrated domestic waste and wastewater can also be used as raw materials for fertilization, increase land fertility, and support agricultural production. In fact, in Beijing, Linqing, and Jiangnan, the authorities have long noticed this problem in the metropolises with a population of over one million. Some specialized people gathered the garbage from various neighbors and bought feces in the city.

Zhu Cixuan remembers reading a report in his previous life that it was in a certain place in Hunan. The old city never accumulated water because of the sewer built during the Song Dynasty. On the contrary, the new city area, which had been built for only 20 years, often had water accumulation on roads due to insufficient drainage. He had observed the drainage system of the Forbidden City. Although it was the foundation laid by the Mongols, he had never seen any water accumulation.

Of course... this may also be related to the Little Ice Age, severe drought in the north, and excessive precipitation.

However, in the capital and Tianjin, he had seen the Ming people's drainage channels. Although they were not as exaggerated as the historical records said in Kaifeng City - some people were home to the waterways, and even gathered thousands of bandits - but they were far beyond the "urban sewage discharge pipeline" in later generations. In his plan, the sewers only reserved space, one was because the drought in Shandong would continue for several years, and the other was because of the current lack of financial resources, so they could only be managed in installments.

The most important thing at present is to organize households and all the people, remove corvee labor and military personnel.

The Pan Army was a system where soldiers from military households in northern provinces went to Jiubian to serve. It was originally intended to be a rotation war to polish the army and train and strengthen the army, but later it became a chore and military slave. Now that the Nine Territory has fallen, the Pan Army will naturally end in vain, but it is still necessary to completely declare the end of this system.

Corvée is a duty that is the most troubled thing for the people. If there are few men in the family, they will be on the turn of corvée. The whole family may not be able to expose the blame. The new policy of Longqing implemented a whip law, combining taxes and labor into a collection of cash, which is the so-called count tax, which is still a bad thing that can make the common people lose their money, and naturally becomes the main reason why the people conceal their household registration.

If the captive tax can be removed, the people will not need to conceal their household registration, and they will naturally reduce their resistance to the work of all households and people.

The resulting labor gap is filled by recruiting civil servants and giving wages. If a key project like the Lexia Defense Line is needed, in addition to recruiting civil servants, there are also engineering battalions and prisoners of war to be dispatched. At the current level, it will not cause the problem of labor scarcity. Instead, it can alleviate the pressure among the people, win the hearts of the people, rest and recuperate, and cultivate the foundation of the imperial Ming Dynasty.

...

"Kuai Xin Gong. It's so hard to get up and talk." Zhu Cixuan stepped forward to help Wang Zheng with his white hair.

This old man named Wang Zheng, named Kui Xin, was already thought of by Zhu Cixuan as early as the early years of Chongzhen. He was Wang Zheng, a great scientist in the Ming Dynasty and Xu Guangqi, who was known as the "King of Southern Xu and Northern" together. In other words, Wang Zheng can be regarded as Zhu Cixuan's commoner pen pal. After eight years of correspondence with Zhu Cixuan, he finally met.

"But I never thought that it was His Royal Highness the Crown Prince! The crimes died!" Wang Zheng refused to stand up. He was 73 years old and burst into tears and was in great excitement.

Zhu Cixuan used the name of his previous life to communicate with Wang Zheng's letters, exchanged questions about physical machinery and language translation, and occasionally discussed the teachings of Catholicism. Wang Zheng only thought he was a wealthy family in the capital, but he did not expect that he was the prince of the Emperor Ming. In his letters, he often regarded himself as an elder, called him a friend, and encouraged him to go to school. At this moment, when he saw the real dragon, he was inevitably nervous in the excitement.

This anxiety was not because he was afraid that the crown prince would hold grudges. But because he was afraid that the Ming Dynasty would have another carpenter emperor in this crisis. Thinking that he actually "tempted" the crown prince to do his job, how could he not be afraid?

Zhu Cilang used a pseudonym because he didn't want to be implicated by him.

At that time, Wang Zheng was appointed as the deputy chief of the Shandong Censor and the Liaohai Military Supervisor, and returned home from the custody office. He was the subject of surveillance. The case he was involved in was the very sensitive Kong Youde rebellion. Of course, Zhu Cixuan did not dare to have any relationship with him on the surface. Otherwise, not only would he not be able to help him, but he would also be missed by villains.

After Zhu Cixuan arrived in Shaanxi, a transfer order recruited the retired official at home to Shandong. Except for the eunuchs around him, no one even knew that there was such a trivial matter. Wang Zheng finally arrived in Shandong under the care of his son Yongchun and Yongshun, but he was confused. The entire Shandong Province was not prepared for this transfer order, and could only take care of Wang Zheng's previous position and support him.

It was not until Zhu Cixuan arrived in Laizhou and settled important matters that he was brought from Jinan.

"Kuai Xin, I have always been frank and forgive me." Zhu Cixuan smiled and said, "Do you dare to ask Kuai Xin, are you willing to serve as the Royal Institute of Technology?"

Wang Zheng was held up by Zhu Cilang, and he barely sat on the chair, looking at the crown prince with tears in his eyes: "My emperor clearly has this yamen?"

"It's not a yamen." Zhu Cilang said: "It's an academy that I plan to invest money to run, but what I teaches is natural sciences such as mathematics, physics, and chemistry."

The communication with Wang Zheng over the years has benefited Wang Zheng a lot. If Western missionaries such as Pondi, Johnson Chan and others opened a window for him, then the crown prince led him into another world. In the era of naturalists in the West, Zhu Cixuan had divided different types of natural sciences and pointed out the fundamental differences.

"Now that the country is in decline, how can Your Highness be distracted by such miscellaneous studies?" Although Wang Zheng has great enthusiasm and love for natural science, he still cannot get rid of the narrow-mindedness of "those who are physically called tools."

Zhu Cixuan never thought of changing others, although he was indeed changing others. He changed his perspective: "Kui Xin Gong, now the bandits are a hundred times more powerful than me. If there is no weapon, how can we compete with the bandits? For example, the "Crane Insight" and "siphon" you invented before are used in farmland. The number of acres that originally required ten manpower to irrigate can now be borne by one person. These nine manpower can be drawn out to participate in the restoration of the great cause, otherwise we can only urgently go to the ridges of the field. In this way, isn't miscellaneous tasks also a weapon for the country?"

"Miscellaneous studies are naturally the weapon of the country." Wang Zheng said: "However, with the honor of Your Highness, you should not be aware of the mud here."

"Haha, so I found Kui Xin Gong to preside over the presidency." Zhu Cixuan followed the way: "I have moved all the craftsmen in Beijing and Tianjin to Denglai, and there are always people who are willing to learn. Kui Xin Gong only needs to talk about this miscellaneous learning and pass on his ink and the way of class, so I can concentrate on governing the army and pursuing the people. Wouldn't that be a big deal?"

"I dare not accept orders!" Wang Zheng returned home to live in the fifth year of Chongzhen and never became an official again. Now he has extinguished his wish to become an official, and he can engage in a career he loves throughout his life, and has received the approval of the crown prince, so he is naturally happy with it.

Zhu Cixuan knew that Wang Zheng was old, so he specially received his two sons, compared Wang Zheng to a national treasure, and ordered them to take good care of him. At the same time, he also gave the treatment of unlimited quota for the Technical College. As long as Wang Zheng felt that it was suitable, he could be collected and no one would care about it. The only rationed account is only used to keep accounts and ask for money, and will never be supervised.

Wang Zheng was not surprised that he trusted the prince like this. Years of divine friendship have laid enough trust foundation. He knew that the prince's scientific level was far above him, so he could only encourage himself to do his best.

"Your Highness, there is a person in the capital who knows astronomy and geography, and is proficient in several languages. Can you summon Shandong?" Wang Zheng asked.

"Yes." Zhu Cilang agreed immediately.

"This person is from Tessie..."

"John Choi?"

"It's this person!" Wang Zheng smiled, knowing that the crown prince was also a fellow like, and there was absolutely no reason not to know Johnson Tang.

"Hahaha," Zhu Cilang smiled, "Father Tang will be here in a few days."

Wang Zheng was happy: "With him here, I will have more confidence."

Zhu Cilang smiled: "I still need him to help me cast cannons, but Kui Xin Gong has to work hard on building, navy, and ship cannons. The Lexia defense line is related to the safety of the Shengjia, and must be formed before the end of this year."

Li Zicheng could not go south before solving Wu Sangui, but Zhu Ciyang did not think that his loss to Wu Sangui and the Qing Dynasty coalition was a coincidence. The current variable lies in Wu Sangui alone. If he could withstand Li Zicheng, the Qing army would not have entered the pass from Shanhaiguan. If he could not withstand, would he surrender to the Qing Dynasty?

In the original historical script, Dorgon gave him the condition to be king of Guanning forever. Later, the Manchus broke their promises and drove Wu Sangui to the south of Caiyun, planting the seeds of the Three Feudal Rebellion.

No matter what, before the 18th year of Chongzhen, Shandong was still safe. It could even expand its control scope to the entire province of Shandong and even the Jianghuai area. (To be continued. If you like this work, you are welcome to come to Qidian to vote for recommendations, monthly votes, and your support is my greatest motivation. Mobile phone users please go to m. Read.)
Chapter completed!