The last human in the universe

Chapter 5 Planting
There is a special reproductive laboratory on the Tinder spacecraft. Every astronaut who participated in the Tinder program has received artificial insemination, genetic analysis, and subsequent use of artificial wombs to cultivate human embryos, deliver babies, take care of babies, and treat babies. Training on common diseases and the like.Of course Zhao Changxing did the same.

Thankfully, during the long voyage of the past 55 years, the sperm bank, egg bank, and reproductive laboratory have not suffered much damage.Otherwise, Zhao Changxing would really lose all hope, and die in vain.

Once you have made up your mind, start doing it right away.He informed Xiao Xi, and came to the reproductive laboratory.

"Take twenty copies of sperm and twenty copies of eggs."

"Good captain."

The reason for taking twenty copies is because Zhao Changxing must consider the risk of failure and gender imbalance.If there are more embryos that survive in the end, he will select the strongest embryos for gestation through genetic analysis.Embryos that are not strong enough have no chance to come into this world.

This seemed cruel, but it was a choice Zhao Changxing had to make.Now the inheritance of human civilization is too weak, all kinds of materials and equipment are too limited, and the environment is too harsh.I don't have the energy and ability to take care of a sick person.

Twenty fractions of sperm and eggs were delivered to the airtight table.With the help of a microscope, Zhao Changxing completed the artificial insemination in complete isolation.Afterwards, they were taken away by Xiaoxi for the next step of breeding.

The specific situation will take a few days to come out. At that time, Zhao Changxing needs to make a choice.

After finishing these things, he took care of the artificial starch reactor and confirmed that everything was normal, so he handed over the matter to Xiaoxi and went to sleep.

When I woke up in the morning, it was still a big bowl of porridge.But for some reason, today's porridge doesn't seem to taste as good as before.

He checked and found that the porridge was still the same, and the seasonings such as soy sauce, sesame oil and salt were also the same, without any change.He pondered for a while, and couldn't help but smiled wryly.

My own mouth is being spoiled.

When I was hungry and could only drink nutrient solution, a bowl of porridge was supremely delicious.Now porridge is enough to eat, but I start to look forward to other foods.

I really miss the taste of vegetables... and the oily meat, which is fried first and then stewed. When the lid is lifted, the aroma...

Zhao Changxing's mouth was salivating crazily.But after fantasizing for a few minutes, he could only face the cruel reality.

Frowning, he ate the remaining half bowl of porridge, and he took the Falcon [-] spacecraft to the surface of Sedna again.

He first checked the reading of the barometer and found that there was almost no change, so he nodded in satisfaction.The test will continue, and he once again put his energy into the construction of the life support area.

Two days later, he finally confirmed that the airtightness of the soilless cultivation workshop was fully qualified.So he began to transport the equipment needed for the next step of installation, such as temperature control equipment, automation modules, water circulation system, various shelves, trays, etc., to here.

The height of the soilless cultivation workshop is a little over three meters. At this height, for some shorter plants, three or four layers can be planted, such as some vegetables.But for taller plants, you can only plant one layer, such as corn and sunflowers.

This requires him to divide the soilless cultivation workshop, plant different plants in different areas, adopt different planting schemes, and control different temperature, humidity, and light.After all, different plants have different requirements for the growth environment.

He had already planned ahead.According to the plan, this first soilless cultivation workshop with a total area of ​​[-] square meters will be divided into four areas, one area is dedicated to growing spinach—spinach is chosen because it grows fast, It can be harvested in a month.Zone [-] is used to grow soybeans.Soybeans can not only make a series of foods such as bean sprouts, tofu, and yuba, but also extract oil.

There was originally enough fuel stored in the Tinder spacecraft, but most of it was lost in that disaster, along with the rest of the food.He had already eaten the only bit left.Without oil, nothing tastes good.

The third area is used to grow staple food, and he chose rice.What to plant in the fourth district needs to be carefully considered.

This area, in his plan, is intended to be used to grow some food suitable for babies.After all, babies are different from adults and are special.

Originally, there was milk powder in the Tinder spacecraft, but unfortunately, most of the milk powder was also lost, only a little remained.Such a little milk powder, when Zhao Changxing was the hungriest, he would rather drink the nutrient solution than eat it, just to leave some rations for the babies.

But obviously, such a little milk powder is not enough.Although there are frozen cow embryos in the Tinder spacecraft, I have no food to feed them now. It is nonsense to get milk now, and I can only find a way to provide food for babies from plants.

After much deliberation, he finally chose Xiaomi.This thing is boiled into a paste, although the nutrition is not comprehensive enough, but for the confinement babies, it should be able to barely feed them.

In ancient times, if the mother's milk was insufficient, the poor family could use cow's milk instead, and they could worship their godmother and drink Baijia's milk.Zhao Changxing did not expect that he, no, it should be said that it is human civilization, such an advanced civilization, has now become so miserable.

There is still no way.

He also imagined that when the first human base was almost built, there would be cows and milk to breed the next generation, but he still gave up on this plan.I really can't afford to waste time.

Use a special partition to separate the four areas - you don't need to pay too much attention to the sealing, even if there is a slight air leak, there is no hindrance.Among the four areas, the rice planting area is the largest, covering about 40 square meters. There are 4 rows of shelves with a width of 0.6 meters and a length of 9 meters. Each row of shelves is divided into upper and lower floors, and a total of about 43.2 square meters of rice can be planted. , three months to mature, with the blessing of new technology, a total of about 3 kg of rice can be harvested.On average, about 60 kilograms can be harvested a day, plus vegetables and oil, not counting artificial starch, which is enough for Zhao Changxing to eat.

The millet planting area is the second largest, with an area of ​​about 30 square meters. There are three rows of shelves with a width of 0.6 meters and a length of 9 meters. Each row of shelves is also divided into upper and lower floors. A total of about 32.4 square meters of millet can be planted. It also matures in three months, and with the blessing of new technology, about 30 kilograms of millet can be harvested each season.

The soybean planting area ranks third, covering 20 square meters. Two rows of double-layer shelves with a length of 9 meters and a width of 0.8 meters are placed. The total planting area is 28.8 square meters. The growth period is also three months, and each season can harvest about 17 kg look.

The spinach planting area is the smallest, with only a row of shelves with a width of 0.7 meters, but this shelf is divided into four floors, with a planting area of ​​25.2 square meters.It can mature in one month, and about 160 kilograms of spinach can be harvested each season.

With such a high output, Zhao Changxing and the future babies obviously couldn't finish it.But for the rest of the spinach, he has his own plans.

All the shelves in the soilless cultivation workshop are 9 meters long, and the remaining one meter is reserved for internal passages.

After a busy day, I just separated the four areas and assembled a shelf.The "lunch box" brought from the Tinder spacecraft and stored in the Falcon [-] spacecraft has been eaten. When it was time for dinner, he was so hungry that he couldn't bear it. The Falcon [-] spacecraft is back in the Tinder spacecraft.

At this moment, the results of artificial insemination have come out, and the result is that all twenty fertilized eggs have successfully developed. Zhao Changxing has to sigh that the civilized ruling committee really did a careful selection.

At the beginning, facing the inevitable end of human civilization, after proposing the fire plan, the ruling committee launched a call to the whole people, calling on all healthy men and women with high IQ and no genetic diseases to undergo medical examinations, donate sperm or egg.And for this matter, people also exploded with great enthusiasm, and almost everyone who met the requirements came to sign up.

A total of more than one billion people signed up, and finally after a lot of screening, only a total of 200 million sperm and eggs were screened out.Every selected one undoubtedly carries the best genes in the entire human civilization.

But Zhao Changxing can only reluctantly give up ten of them at this moment.Through genetic analysis technology, he selected the best again, and finally selected ten, carefully manipulated them, and with Xiaoxi's help, put them into the artificial womb for further development.

Then came the long wait.They will not be born until more than nine months later.And if everything goes well, by then, Zhao Changxing will welcome them with the living environment he has tried his best to transform.

Time is still passing slowly, and about a month later, the soilless cultivation workshop was finally completed.Rows of racks, air conditioning, water circulation, humidity control equipment, lighting, automatic harvesting, fertilization, and a full set of equipment have finally been installed.Next, as long as the last thing is done, the crop planting operation can officially start.

This work is the configuration of the nutrient solution.

It is obvious that crops cannot grow by relying on water alone.They also need various elements during their growth, such as nitrogen, phosphorus and potassium.Zhao Changxing needs to configure various elements or compounds for crop growth in a certain proportion, and dissolve them in water to supply crops, so that they can grow.

The various elements needed for plant growth are not lacking on Sedna, but they all exist in the form of various compounds, and they need to be further processed through various chemical reactions, or filtration and purification processes.In fact, Zhao Changxing has been doing this on and off for a while—the water ice that was transported to the Pyro spacecraft before was not just water ice.All kinds of impurities separated from there were collected by him.

Now he has some nutrient solution in stock.Although not much, growing one season of spinach is completely enough.

"The nutrient solution needed by other crops will be collected and deployed slowly, and the spinach of this season will be planted first."

He took out the nutrient solution and spinach seeds, and left the Tinder spacecraft again.

(End of this chapter)