I Have a Mansion in the Post-apocalyptic World Chapter 175: Make it yourself

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"Planting a cam tree?" Sun Jiao was stunned for a moment, and then a hard look appeared on his face.

"Is there a problem? If you can't buy saplings, you should be able to get them on the market. If you can't, you can let Zhou Guoping think about other ways." Jiang Chen couldn't understand.

"No, it's not a problem of saplings, saplings are easy to handle." Seeing Jiang Chen seemed to have misunderstood her meaning, Sun Jiao couldn't help but smiled bitterly, "The problem is cultivation."

"Cultivation? I remember that this mutated plant should be able to survive on the soil of the last days, is there any problem?" Jiang Chen frowned.

Ordinary crops cannot survive on waste soil, which is contaminated with nuclear, biochemical, and chemical, but it is possible to select and adapt to the modified plants. It stands to reason that what can be planted in the sixth block, the fish bone base cannot be justified.

Hearing Jiang Chen ’s question, Sun Jiao could n’t help but help him to patiently learn the basics of his science.

If you want to plant on waste soil, you have to consider two factors. One is radiation, and the other is soil pollution.

As long as there is material exchange with the outside world, the influence of radiation cannot be avoided. There is nothing on the waste soil that does not carry any radiation at all, even if it is drinking water processed by automated water purification equipment. Only because of the existence of EP and special drugs, the low level of radiation has no effect on people, but the plants are not so well treated.

To keep the grown apples from mutating, it is necessary to control the radiation level below 1. If the radiance is higher than 5, even if the normal seeds fall into the geography, they have to become abnormal. With the technology of the sixth block, it is already the limit to control the radiation level at 3. From this point, it can be reflected from the side, how precious the canned fruits brought by Jiang Chen.

However, mutated plants that survive under natural selection are less expensive, and radiation resistance is generally higher. Take the Kam tree as an example, as long as the radiation value is lower than 40, it can grow normally. The radiation value in most places on the waste soil is between 10 and 20. As long as it is not going to a nuclear crater, the radiation value cannot reach 40.

The degree of soil pollution is relatively easy to solve. After all, the technology of planting out of soil is quite mature in the future.

So, plantations on waste soil can be roughly divided into two types.

One is to use soilless cultivation techniques to cultivate crops.

The benefits of this planting method are obvious, that is, the effect of soil pollution can be completely ignored, and the output per unit area is also higher than that of soil planting. However, its shortcomings are also obvious, that is, higher planting costs. The use of soilless cultivation technology to produce industrial raw materials such as kamm resin definitely has to be paid to the grandma's family. They are usually used to cultivate some luxury goods, such as mutated and not completely fruit.

The representative building in the sixth block has a CNC planting tower. Of course, because of the emergence of canned fruit, such industries are on the verge of bankruptcy.

Another type is conventional planting on the land.

Simple and rough, the product can be produced by sprinkling seeds and watering and fertilizing. Whether to hire serf slash-and-burn or mechanized dense planting is entirely based on the preference of the landowner, and is mainly used to produce less expensive varieties of plants. For example, cam resin used in industrial production, such as tobacco of various flavors ...

The advantage of this type of planting method is the low cost, but the demand for soil quality is somewhat harsh.

Take the Camu tree as an example, the crop can only be grown if the soil pollution is less than 10. Such treasure land is very little on waste soil, so the production of cam resin is not high even in the sixth block. There was no demand for these things originally, but in recent times it has been in short supply.

"Can't you buy soilless cultivation equipment?" Jiang Chen asked unwillingly.

"Planting cam trees with soilless cultivation equipment, then you have to spend as much subcrystals to get one ton of cam resin." Sun Jiao said helplessly.

This is a bit difficult.

Jiang Chen's brows couldn't help but wrinkled up, sinking into contemplation.

But at this moment, he suddenly thought of Lin Ling.

Right! That "Eden Project"!

If you can do it even with the establishment of a local biosphere, there is no reason not to improve the soil technology?

"Have you thought of anything?" Sun Jiao asked, looking at Jiang Chen, whose face was constantly changing.

"Um." Jiang Chen's mouth raised a smile, "It seems that the 'little slaves' in our villa will come in handy."

Sun Jiao seconds understand, a flash of joy flashed across his face.

......

"What? Reduce soil pollution? Why do I have to help you?" The finger pinched the test tube and shook her soft silver long hair to block the disgusted expression, Lin Ling said without a word.

Red and black eyes of the same color are the same as before he left, it seems that she is used to living with an abnormal creature in her body.

"Because you need to eat." Sighing, Jiang Chen said rightfully.

The humiliating expression, he is also a little tired of it, but this chick seems to be enjoying each other?

"I said, are you being bullied?" Jiang Chen said helplessly, looking at Lin Ling, who began to write on the touchpad with frustration.

There is obviously a face that does not lose to the beautiful girl, so she must have such a bad expression.

"Go to death." The finger drew the last stroke, Lin Ling gave Jiang Chen a furious look, and made a grimace with his tongue out.

"What's this?" Jiang Chen ignored her movements and asked near the touchpad.

"Oh, stupid--" Lin Ling raised her chest and raised the corner of her mouth.

"Cough."

"Ah! That's enough! Well, I said yes." Puckering her mouth in frustration, Lin Ling reached out and pointed on the screen. "The first step is pH neutralization. The second step uses an ion filter to remove heavy metal ions, the third step is ... "

"Wait, what is an ion filter?" Jiang Chen stopped her and asked, head to earth.

"A thing that can easily filter out the specified relative atomic mass, should be very common." Lin Ling said casually.

Fat trough, never heard of it.

Jiang Chen suddenly recalled that Lin Ling seemed to have been staying in the research institute, otherwise she would have no idea of ​​the situation in the last days. In this way, she is common in her mouth, just afraid that it is very common in the laboratory.

Mistaken ...

"I'll ask first, how many steps do you have to take in these processes?" Jiang Chen asked with a black line.

"Not many, just 24 processes. I have sampled and tested the soil here, the pollution degree is 68. It is incredible, such a poisonous soil can still produce weeds." One of the areas she is good at The expression on Lin Ling's face also became excited.

"Don't you consider the cost when you are playing in the laboratory?" Jiang Chen said.

"Cost? Of course it will be considered." Lin Ling said disapprovingly.

"You have told me more than 20 procedures, what is the cost?"

Lin Ling gave Jiang Chen a strange look.

"Are you misunderstanding something?" Eden Project "is not a" soil purification plan ". Since it is a sub-project of space colonization, why do we have to study how to control the pollution of the earth. Organic matter and mines on other planets Matter, we can make soil out of it, and it ’s too much trouble to purify something. "

"Make soil?"

"Yes, it is not difficult to make soil, at least it is much easier than washing the ground. But here is full of contaminated 'finished products', and it seems not easy to find pure raw materials for synthetic soil." Lin Ling sighed.

Make soil? Other planets?

Jiang Chen suddenly photographed his head and scolded in his heart.

Lying trough, I did n’t expect it. Why is it so troublesome, I can cross on both sides! Grain can be moved back, how difficult is it to get hundreds of cubic meters of mud?

Since the problem has been solved, Jiang Chen doesn't plan to continue this problem anymore, so he digresses.

"Okay, let ’s not talk about this ... right, the task assigned to you has not been completed." (To be continued.)