Wang Changwen's words have said so much, how much Nie Peng listened to and how much he digested, only he knew.

Looking at the time, a long time has passed, I got up to say goodbye to Wang Changwen, went out and shouted to Jiaying, who was waiting to make coffee in the reception room, and pulled a cart of cultivation tanks back to the factory.

"In this weather, it's more difficult to go to Shanghai", Nie Peng looked at the fog outside the car window and still showed no signs of dissipation, and said to Jiaying.

"It's hard to go, besides, it's me driving and it's not you, what's difficult for you?" Jiaying turned on the double flash, kept a distance of about 30 meters from the vehicle in front of her, and slipped away without hurrying.

Seeing that the little Jiaying was holding the big steering wheel, and the whole person was trapped in the velvet backrest, Nie Peng was a little unbearable: "Yes, it's you who work hard, do you say it's difficult to learn a driver's license?" He asked.

"Fortunately, now you can only take the C2 license, which is the driver's license of automatic transmission, which is much easier than before. What's wrong? Sister, this driver is incompetent, and she wants to drive it herself? ”

"Where, I'm afraid you'll be tired."

。。。。

The factory building on the outskirts of the city is still in the stage of purchasing goods at this time, and a large number of steel beams and sand are piled up at the door, which has a sense of waste waiting to be rebuilt at a glance. Jiaying stopped the car and helped Nie Peng take 5 cultivation tanks from the trunk and stack them in the free space in the factory, and the remaining 15 were temporarily put in the car first, waiting for a while to go to Nie Peng's garage to install temperature control monitoring equipment.

Nie Peng checked the incubator made of cardboard boxes, and was pleasantly surprised to find that there were already tiny shoots piercing the soil and drilling out, stubbornly pressing on the plastic bag to prop up a small slope.

Although he didn't know much about agricultural cultivation techniques, he also knew that this was definitely a good sign, so he happily took out his mobile phone and took several photos.

These people were farmers who were farmers at home earlier, and in recent years, they caught up with the rapid development of urban construction, so they had the idea of coming to the city to work and work, and found a contractor in the same township to do hard work, and earned a lot more than one acre and three points of land.

But this does not mean that they have forgotten the ability of the croppers, these people have one count, they don't need to get started at all, they know at a glance that there is a problem with the potato seedlings in the broken cardboard box, if it weren't for the boss who told them to take care of it carefully, maybe someone will help others to transform it.

"Manager Nie, where are you doing this?" The foreman who was directing the construction on the other side of the factory saw Nie Peng and came over to say hello.

"Didn't I get some soil and try to see if I could use it for farming, didn't I buy two potatoes nearby and put them in to try." Nie Peng didn't hide it from him, and explained it to him.

The foreman squatted in front of the incubator, looked at the potato seedlings rolled up the leaves, and asked Nie Peng: "You planted this potato with sprouts, right?" ”

Nie Peng nodded, guessing that this foreman might have experience in farming, and listen to what he can say.

"This soil, no, how can there be a freshly sprouted seedling, so light in color? I didn't eat the fat in the soil at all," the foreman pressed the potato seedlings with his fingers, and felt that the leaves were like miniature celery, and he was stunned.

"Huh? Dirt doesn't work? Nie Peng was stunned for a moment, looking at the seedlings that had been unearthed, and didn't understand why the foreman said this.

"Don't look at us as a project, we haven't planted less land before, and we haven't forgotten what seedlings and harvests." The foreman looked at Nie Peng with an unbelievable look, and defended: "When I cleared the field yesterday morning, I moved this box, and those masters all looked at your seedlings, and they all said no, no fat."

"Not fat? No fat? Nie Peng grasped the key point in his words and understood what the reason he said was that the soil was not good.

"Lack of nitrogen, I don't know where you got this soil, it's too poor, even if you grab a handful of sand, it's better than him." The foreman lifted the plastic covering the basin, put some soil under his nose with his fingers, smelled the smell of gunpowder, and shook his head.

"So, is there any way to make this potato grow well? Is it enough to make the soil fertile? "Since the foreman can see that the soil is not fertile, it means that he is somewhat sure, and it is rare to meet someone who understands, so he has to ask clearly.

"At this time? Urea water, or nitrogen compound fertilizer mixed with water spray leaves, want to make this soil fertilizer is also simple, you have to add some compost, that is, dung, or get some organic fertilizer, don't add more, otherwise burn seedlings" Speaking of farming, the foreman's thinking is very clear, it seems that no matter how long the craft of eating, can not forget.

Listening to his words, Nie Peng, who has been learning astronomical knowledge these days, suddenly thought of the problem, the surface of the moon has been exposed to the space environment for a long time, and there can be no naturally formed organic matter, even if there is, it is brought by comets or meteorites, but just that little bit of poor organic matter is insignificant for the vast area of the moon.

Unlike the Earth's surface, the Moon's hard rocks cannot withstand weathering due to air and water erosion, and will turn into fine sandy soil, which is mixed with the action of microorganisms to form soil that can feed plants over many years.

Although there is no air and water on the moon, there are other erosion factors. For example, the thermal expansion and contraction of the surface of the lunar rock is larger than that of the interior, and this huge temperature change will cause the rock to crack, coupled with the radiation of the sun's ultraviolet light, X-rays and γ rays, the solar wind and the bombardment of atomic nuclei from the universe that is accelerated to nearly the speed of light, will destroy the crystalline structure of the rock and cause the rock to fragment.

With the dust particles of interstellar space constantly hitting the moon, meteorite fragments bombarding the surface of the moon in turn... and so on, a series of factors will gradually change the original appearance of the lunar surface, and eventually the vast majority of the lunar surface will be covered with a layer of dusty material, that is, the lunar soil in this basin.

Nie Peng, who is studying biopharmaceuticals himself, is naturally involved in the life and reproduction of animals and plants, although he can't remember all the 16 elements necessary for plant growth, but the basic six elements: carbon, hydrogen, oxygen, nitrogen, phosphorus and potassium have not been returned to the teacher.

Thinking of this, the picture of Matt Damon planting potatoes with poop as fertilizer in "The Martian" came to mind.

"It seems that this science fiction movie also has some basis, eat potatoes and pull poop, and then use poop as fertilizer to continue to grow potatoes... Vomit... The more he thought about it, the more he couldn't stand it, he quickly stopped his thoughts, and it was estimated that if he continued to diverge his thinking like this, he would basically say goodbye to potatoes in the future.

"It's really a long knowledge, by the way, the report of the Quality Supervision Bureau hasn't been picked up yet!" After thanking the foreman, he took Jiaying to the Quality Supervision Bureau to get the report, and the fast-paced work has already put his thinking about the value of life in the back of his mind.