Tang Yue sat in the dung heap and used scissors to cut open the vacuum packaging of the stool, due to dehydration and low temperature, the feces in the bag were all dry and crunchy, looking hard, but in fact they would crumble like sand when they were lightly pounded.

He never thought that he would have the privilege of being in close contact with stool in this life, in the past, Tang Yue would pull up his pants and flush away, quite ruthless, and never look back.

Tang Yue poured the dried feces in the vacuum bag into the iron plate, he could even tell what he ate that day according to the food residues in the feces, many foods rich in crude fiber are not fully digested in the human stomach and intestines, and will be excreted with the feces, Tang Yue often ate canned vegetables for a while, and incompletely digested plant fiber can often be seen in the stool during that period.

Tang Yue was wearing a two-layer mask, but fortunately, the stools had been dry for a long time and had no smell.

"The smell in the feces mainly comes from 3-methylindole, which is skein, and if it gets on your clothes, it will smell like a lump of stool." The old cat sat on the side to help, and he smashed the feces and broke it up.

Tang Yue felt that it was more interested in the feces themselves.

"Tang Yue, look at this tuoxiang, there is a long thing in it...... Is it roundworms? Oh no, it's undigested fiber......"

"Tang Yue, are you eating vegetables this day? I saw the scraps of vegetable leaves, which is food waste, you know? I think these leaves can still be eaten when picked out. ”

"Tang Yue, are you not very good at gastrointestinal function and digestion......

Tang Yue clapped his hands and turned around.

He had just shoved a ball of rolled up gloves into the old cat's mouth.

It's finally stopped.

"Human manure is a very traditional fertilizer, rich in nitrogen, phosphorus, potassium and calcium, which is very suitable for growing vegetables, and they can provide enough nutrients for tomatoes." Mai Dong's voice sounded in the earphones, "Tang Yue, you need to rehydrate these dried feces, that is, add water and stir thoroughly, and then mix them with the soil taken. ”

Perform rehydration......

Tang Yue's forehead began to sweat.

Although Mai Dong said it so academically, isn't this behavior just ...... Stirring up?

Tang Yue glanced at the iron hammer in his hand, the purpose of a stick depends on who is in it, if it is in the hand of Harry Potter, then it is a tall wand, if it is in Tang Yue's hand...... It's just a-stirring stick.

Origin is everything.

Tang Yue asked the old cat to bring over the condensed water last time, and the specific amount of fresh water should be used Mai Dong did not explain, she only described that "the water added should be enough to soften and dilute the feces, and the viscosity is between thin soup and thick porridge, which should be like a pot of curry with a little too much water." ”

"Then the manure is added to the substrate soil, like curry is poured over rice."

This metaphor is truly invincible.

Tang Yue didn't want to eat curry rice in his life.

Due to the preliminary experimental nature of planting, Mai Dong and Tang Yue were not prepared to use up all the tomato seeds, and if they accidentally failed, it would be over. Tang Yue decided to plant only about ten tomatoes in the first batch to verify the feasibility of the plan, and when he was 100% sure, it would not be too late to sow the remaining vegetable seeds.

Therefore, the soil and manure were prepared according to the amount of ten tomatoes, and Tang Yue still had a lot of feces in his hands...... On barren Mars, poop is indeed a valuable and scarce resource.

Tang Yue imagined that if there was a primitive farming civilization on Mars, then poop would inevitably be a sought-after commodity, and perhaps someone would make a fortune by collecting and hoarding poop.

The old cat and Tang Yue each put a helmet on their heads, as if they were facing a great enemy.

The old cat held the sink in his hand, and the sink contained ice water.

Tang Yue held an iron skewer tightly in his hand, and in front of him was a large beaker, in which was dark brown mysterious powder and lumps.

"Are you ready?" The old cat's eyes were resolute.

"Ready." Tang Yue nodded.

The old cat tilted the sink and poured the water into the beaker, the feces in the cup were washed away, the water immediately became turbid, the black residue mixed with foam swirled and floated up, the water was quickly absorbed by the feces, and the dry powder stool became viscous again, like a jar of thin mud, Tang Yue held his breath, inserted the iron skewer in his hand into the stool, and began to stir hard.

Tang Yue comforted himself that he was a happy dung digger.

"Tang Yue, you just need to think of it as black sesame paste." Mai Dong said.

Tang Yue and the old cat were both stunned.

"Sister, I beg you to stop talking, you have already scourged curry rice, please don't scourge sesame paste again!"

·

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·

Mai Dong was wearing blue overalls and a matching hat on her head, floating in the core cabin of the Crystal, and the screen in front of her was connected to the communication system of Kunlun Station, with dense control panels on the front and back.

Mai Dong never dared to turn off the communication system, she was worried that the old cat and Tang Yue on the Kunlun station would also be like the earth, and they would disappear as soon as they woke up.

Only by looking at the man and cat did Mai Dong know that he was still alive.

Life alone in the space station is boring and boring, although the universe is vast, but being in a small space station can make people claustrophobic, the Crystal core module is the largest and most spacious cabin in the United Space Station, but it is only a few steps back and forth, and the other cabins are not like rooms, more like pipes, cylinders or cuboids, and walking through these pipes has the feeling of traveling through a labyrinth or an anthill.

Mai Dong has a very regular daily life, physical training, eating, checking the work of the space station, taking care of plant samples, and finally sleeping, she only sleeps five to six hours a day, and she is in low-earth orbit day and night, so Mai Dong often suffers from insomnia.

After all the scientific work was canceled, the free time freed up for girls to rest and have fun, there was a lot of music, movies and video games in the space station, and there was even a set of Sony's special PS10 game console, which was brought by Lao Tang - each astronaut had a certain share of personal belongings, in addition to the necessary supplies and scientific research equipment, the members of the scientific expedition team were allowed to carry a certain weight of personal belongings, you can bring dolls, photo albums, and even vinyl records, as long as it does not violate safety regulations.

To cope with the fatigue of the long journey, most people bring entertainment supplies, such as a dozen terabytes of movies and music — except for Old Mai, who is a math maniac who carries a large stack of scratch paper and declares that he wants to overcome the Goldbach conjecture during the Mars mission.

Of course, he forgot about this ambition when he got on the ship, and happily began to play the Elder Scrolls and Call of Duty with Lao Wang.

Mai Dong doesn't play games, she listens to music and watches movies in her free time, there are a lot of very classic old movies on the space station, girls are not interested in Hollywood's bizarre special effects blockbusters, since the earth disappeared, Mai Dong has been watching "Gone with the Wind", "Notre Dame de Paris" and BBC documentaries repeatedly, imagining that the blue planet is still 100 million kilometers away.