In the middle of the night, after a wanton reckless joy, Xia Ziyun, who was already exhausted, would fall asleep groggily, and when he felt the embrace around him in his dream, he called softly.

"Don't, spare the slaves, spare the slaves......"

A similar soft chant spread in Zhu Mingzhong's ears, only making him feel a little proud in his heart, in this era, but all those who are in high positions have several concubines, although Kou Yun and Xia Ziyun and Xia Ziling are not concubines, but their status in this mansion is also equivalent to concubines.

Although the process of obtaining it has a semi-forced taste, but the times are like this, Zhu Mingzhong doesn't care.

Gradually, Xia Ziyun fell asleep.

And Zhu Mingzhong couldn't sleep because he had something in his heart, so he couldn't get up and go outside, thinking about something while changing the clothes he wore outside.

This former Caoyun Governor's Office occupies a large area, the garden of the back garden also has a bit of the scenery of the Jiangnan garden, although it can not be compared with the hundreds of years of careful renovation of the Guogong Mansion in Nanjing, but as a family house is inevitably too big, in this along the corridor in the garden walking, soon, Zhu Mingzhong walked to the back garden, the so-called back garden is actually just a small courtyard that covers an area of no more than three points, the use of this courtyard varies from person to person, it can be a small vegetable garden in the house, it can also be a garden, all because of the hobby of the owner of the office, Now, for Zhu Mingzhong, this is a small experimental field, and the crops that are being planted are only vegetables such as peppers and potatoes, but the former is not planted now, and the latter has just been planted.

Came to the "experimental field", looking at the green leaves growing in the vat, the potatoes in this vat are the potatoes sent by the patient's family members carried by Zhu Mingzhong, the growth period of this common Dutch potato in the 21st century is very short, but only 60 days, because his grandfather had planted this kind of Dutch potatoes at home, so Zhu Mingzhong is no stranger to planting potatoes, a few days ago, he cut the potatoes that have sprouted into pieces, smeared the wounds of the cut potatoes with plant ash, and then planted them into this vat.

"The seedlings have already emerged......"

Looking at the young seedlings emerging from the sand in the vat, Zhu Mingzhong's eyes faintly carried some expectations, the current northern China is different from later generations, because wheat is relatively water-intensive, in the drought-prone north, because of the backward irrigation conditions, it has always been drought-tolerant sorghum and millet, at least wheat has become the staple food in the north, that is in the middle and late 20th century. After the autumn harvest, until March of the following year, the land has been idle, and the grain crops north of the Yangtze River are all once a year.

The promotion of sweet potatoes in the north at the end of the Ming Dynasty and the beginning of the Qing Dynasty changed the grain crop of one season a year, and the population growth of the Qing Dynasty was also fundamentally related to the promotion of sweet potatoes in the north, which made the idle land in the north in winter be utilized, thereby stimulating the growth of population.

Compared with sweet potatoes, which require seedlings, potatoes are easier to grow and promoted. Of course, more importantly, compared with sweet potatoes, these Dutch potatoes brought by Zhu Mingzhong from later generations have a short growth period and high yield.

"Sixty days of maturity, the yield per mu is more than two tons, but there is no chemical fertilizer in this era, and the yield per mu should be able to guarantee one ton......"

Thinking like this in his heart, looking at the young seedlings in the tank, Zhu Mingzhong knew that once these potatoes were popularized in China, what kind of changes would they bring to China's agriculture in the future, and even cause a population explosion, after all, the yield of potatoes per mu alone was enough to feed two or three people.

"I just don't know if the Chinese people can adapt to the staple food ...... potatoes"

Zhu Mingzhong does not know whether the Chinese people can adapt to potatoes as the staple food, but it is certain that the sandy land around the Yellow River such as northern Jiangsu, Henan and Shandong is undoubtedly more suitable for planting potatoes, and in the case of insufficient food, they should be able to accept potatoes as the staple food, at least as the staple food from October to March and April of the following year, the reason for this restriction is that potatoes are not resistant to storage.

"Plant in August, harvest in October, and then eat for five months, if you can't eat it all, it will be wasted, so compared, it is not as good as sweet potatoes, after all, sweet potatoes can be directly sliced and dried for long-term storage......"

Thinking like this in his heart, Zhu Mingzhong secretly complained again.

"If I knew I would have crossed, I should have brought some seeds with me."

Although the yield of potatoes is high, potatoes are not resistant to storage, and even long-term storage of potatoes in later generations is a problem, so potatoes can only be used as a short-term food in this era.

"It's better to have food than not to eat!"

Muttering to himself, looking at the buds in the jar, Zhu Mingzhong was not as full of expectations as before, after all, potatoes have such and such restrictions.

"Perhaps, when we have time in the future, we can breed good seeds here!"

Although most of the biological knowledge learned in school has been returned to the teacher, but for the cultivation of improved varieties always remember some, those textbooks seem to be simple breeding knowledge, in fact, is the accumulation of human experience in hundreds of years of scientific breeding technology, with the help of those knowledge can be completely successful breeding of some good seeds, so as to fundamentally improve the yield of wheat and rice.

"Take your time! When the Manchus are driven out of China in the future, when the time comes, there will naturally be time to cultivate good seeds, maybe, when the time comes, you can still mix a fiefdom, and it is not necessary to be a free king, and you will not be able to ......live on a woman's belly all day long."

In fact, Zhu Mingzhong has never been a person with any ambitions, otherwise he would not be willing to mix in the urban-rural junction, where he will be a free and easy "unlicensed traveling doctor". Even in this era, in addition to restoring the Han people, he also has little ambition, and it is precisely because of this that when facing suppression, he can face it with a relatively peaceful attitude, and will not be dissatisfied with Zheng Chenggong because of the suppression.

For Zhu Mingzhong, his biggest dream is to expel the Qing captives, as for the future, he prefers to be a Xiaoyao King, at least the Xiaoyao King does not need to bear so many responsibilities, and can enjoy the wealth of the world.

Of course, he had never told anyone else about this dream, and he hadn't even thought about it carefully, but it was just a feeling for a while, and when he thought of King Xiaoyao for the first time, Zhu Mingzhong was stunned at first, and then said to himself.

"When the time comes, if Yongli really wants to crown himself king. Which fief should I ask for? Over here? Or somewhere else? Otherwise, just ask North America for yourself! ”