Chapter 175 (1/2)

”Plant the Kam tree?” Sun Jiao Leng Leng Leng, the face immediately appeared a touch of difficult color.

”Is there a problem? If you can't, let Zhou Guoping think about other ways to get it. ” Jiang Chen did not understand.

”No, it's not about the saplings. They're easy to make.” Seeing Jiang Chen seems to have misunderstood her meaning, sun Jiao can't help but smile, ”the problem is cultivation.”

”Cultivation? I remember that this mutant plant should be able to survive in the soil of the last age. Is there any problem? ” Jiang Chen frowned.

Ordinary crops can't survive in the waste soil, which is contaminated by nuclear, biochemical and biological pollution, but the mutant plants that have been selected and eliminated can. In principle, the fish bone base can't grow anything on the sixth block.

Hearing Jiang Chen's question, sun Jiao could not help but help her, so she had to patiently popularize basic knowledge with him.

If you want to plant on waste soil, you have to consider two factors. One is radiation, 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 no radioactive substance on the waste soil, even the drinking water treated by automatic water purification equipment. Only because of the existence of EP and special drugs, low-level radiation has no effect on people, but plants do not have such a good treatment.

In order to make the apple plant does not mutate, the radiation must be controlled below 1. If the radiation level is higher than 5, even if the normal seeds fall to the geography, they will become abnormal. With sixth block technology, limiting radiation to three is the limit. This can be reflected from this side. How precious is the canned fruit brought by Jiang Chen.

However, the survival of mutant plants from natural selection is not so expensive, and the radiation tolerance is generally high. Take the Kam tree as an example. As long as the radiation value is lower than 40, it can grow normally. The radiation values of most places on the waste soil are between 10 and 20. As long as you don't go to a nuclear crater, you can't get to 40.

But the soil pollution degree is relatively good to solve. After all, the technology of planting without soil is quite mature in the future.

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

One is the use of soilless cultivation techniques to cultivate crops.

The benefit of this planting method is obvious, that is, the influence of soil pollution can be completely ignored, and the yield per unit area is higher than that of soil planting. However, its disadvantages are obvious, that is, the planting cost is high. If we use soilless cultivation technology to produce Kam resin, this kind of industrial raw material must be paid to grandma's house. It is usually used to cultivate some luxury goods, such as the fruit with incomplete variation.

A representative building on the sixth block is a CNC planter. Of course, with the advent of canned fruit, this industry is on the verge of bankruptcy.

The other is conventional planting on the land.

Simple and crude. The product can be produced by sowing seeds, watering and fertilizing. It is up to the landowners' preference to employ serfs for slash and burn cultivation or mechanized close planting, which is mainly used to produce less expensive varieties. For example, Kam resin used in industrial production, such as tobacco with various flavors, has the advantage of low cost, but it has some harsh requirements for soil quality.

In the case of Kam tree, only when the soil pollution level is lower than 10, can it be planted. This kind of treasure land is very rare on the waste soil, so the production of cam resin is not high even on the sixth block. At first, there was no demand for these things, but recently, the supply is in short supply.

”Can't we buy soilless cultivation equipment?” Jiang Chen asked reluctantly.

”How much subcrystal do you have to spend to get a ton of Kam resin out with soilless equipment?” Sun Jiao helped her forehead helplessly.

It's a bit difficult.

Jiang Chen's brow can't help wringing up, fell into meditation.

But it was just then. He suddenly thought of Lin Ling.

By the way! The Eden Project!

If you can even build a local biosphere, there is no reason why there is no technology to improve the soil?

”Do you think of anything?” Sun Jiao looked at Jiang Chen, whose face was constantly changing, and asked.

”Well.” Jiang Chen raised a smile at the corner of his mouth. The ”little slaves” in our villa will come in handy. ”

Sun Jiao seconds to understand, the face is also a flash of joy.

”What? Reduce soil pollution? Why do I have to help you? ” Fingers holding the test tube shaking, soft silver long hair blocked the expression of that dislike. Lin Ling said rudely.