Lan Ruyu placed the five pieces of paper she pulled out separately, each with the same symbol and figure on each of them.

"This must be the same element in the new material found in the soil of various parts of the ancient earth, right? What is it? "If you don't know these symbols, doesn't it mean that she has no brains?!

These pieces of paper are recorded in the new substances found on the ancient earth, and below are the compositions. Based on some textual descriptions and common sense, you can basically guess it.

Nan Bei glanced at it and found that Lan Ruyu had really found out.

"We brought back all the samples of the new substances, tested them with instruments, and then analyzed the composition. It was discovered that these new substances contained unknown elements that had not been discovered by the Federation at this time, and that there were more than one.

However, there is only one unknown element that is common to all five new classes of substances. That's the kind of element you pointed out.

We named it the 'Ji' element. ”

"Isn't there an element of this on other planets?" Lan Ruyu's voice was a little excited, and she leaned forward a little.

"Naturally, how could it be called a new element... This element has been around for about a thousand years on the ancient Earth.

However, I checked the information, and I found that the predecessor of the ancient earth, the earth, seemed to have an element similar to the structure of the absorbing element, and the effect should be similar. But then this element disappeared. ”

"A thousand years..."

Lan Qiyu read it in his mouth and began to think back to the lord's codex he had read.

From a thousand years ago to the present, with the rapid development of federal technology, ancient earth technology has become more and more decayed and backward.

The land detector has not been updated in a thousand years, and it has not been able to detect new elements. Naturally, it was not reported to the relevant federal government departments.

"Draw the elements... Is it easy to extract this element from the land? ”

"The extraction rate is 80 to 83 percent. It is an easy-to-extract element. ”

"Is there an extracted extraction element? Can you give me a little bit of it? ”

"What are you going to do?"

"Do a little experiment."

……

Lan Qiyu directly dug a pot of soil in the courtyard of the scientific research institute, and after testing the composition to determine that it did not contain the extractive elements and the composition of the elements was the same, the soil was divided into two equal parts.

One of the soils was filled with the extracted elemental solution of Nanbe, which is a mixture of sterile water and elemental extraction. Add the same amount of sterile water to the other serving.

Soil is placed in the incubator.

The same seed is then sown in two parts of soil. He took out the ancient earth planting robot from his terminal and clapped his hands after setting the watering interval.

"Wait, wait for two planets."

Lan Ruyu was also a little helpless, after two planets, it had been a month since the start of the hidden mission. But what can be done then?

She didn't dare to use ripening agents and nutrient solutions to speed up the germination of seeds, so she had to wait. Rainbow Literature Network

The wait is long.

But because the seeds are all rotten, Lan Qiyu has to discuss with the major planets and then renegotiate, and she is also quite busy. After these things are done, two weeks have passed in a busy time.

Lan Niyu came to the laboratory again, and before she could walk in, Lan Niyu saw small green seedlings emerging from the soil of one of the groups. Lan Ruyu rubbed her eyes, for fear that she had seen it wrong.

He took a few more cautious steps forward, and his face was pressed against the glass of the experiment box.

Small green seedlings, vibrant green. Although only a few centimeters popped out of the soil, it was these few centimeters that made Lan Ruyu's whole person so excited that tears filled her eyes, and she was so happy that she danced with her hands!

Shen Panchi, who was a little late due to talking to Meng Jiao, saw Lan Qiyu spinning in circles in place as soon as he entered the laboratory, with a silly smile on his face.

Lan Ruyu saw Shen Panchi, and hurriedly ran towards him, her mouth grinning, and a few big white teeth smiling at him.

Shen Panchi also laughed, "Xiao Hanhan." ”

It's so cute to laugh, so cute that it bubbles. Hanhan.

"That sprouted?"

"Uh-huh!" Lan Ruyu pulled Shen Panchi close to the experimental box, "You see, the seeds of the ingredients that are added to the extraction element will sprout." The one that didn't add the element didn't sprout, I guess it was rotten. ”

Lan Qiyu took a picture first, and then took out the two parts of soil and used a small shovel to cut open the unsoaked soil. Sure enough, with a very faint rotten taste, rotten food seeds came out.

The other side was dug out, and it had already taken root. It's normal.

Lan Siyu took another photo to dispose of these things.

"It seems that this is the reason for the extraction of elements, and the soil of the food seeds needs to absorb the elements in order to develop and mature normally. None of the earth's soils contain the element Extraction. Therefore, the food seeds cannot survive. ”

Lan Qiyu said that normal soil cultivation needs to absorb elements, but if some special culture medium is used to replicate the ingredients, then there is no need to draw elements. However, this does not fit into the content of the hidden mission. And it's not realistic to replicate ingredients in large quantities.

Now Lan Qiyu is much more relaxed, knowing that the ingredients and seeds need to absorb the elements to survive, and the extraction elements are real. All you need to do is add Elemental Extraction to the test fields on each planet!

"I now understand why these delicious foods are slowly disappearing in 100,000 years.

In addition to the fact that with the development of technology and the addition of interstellar races, there was a need for a unified simple food, and the nutrient solution was invented.

Another reason should be that other planets do not contain the elements needed for the growth and development of those crops brought to the stars by earthlings 100,000 years ago, so they are slowly becoming extinct. ”

This is just Lan Yiyu's speculation, after all, there are still differences between the earth's crops and the seeds of the system.

"Well, now that we've got to the root of the problem, the next step is to fix it. So where are you going to get a lot of the Extraction? At present, only the ancient earth of the Federation has found the element of extraction. ”

"Then the ancient earth..."Lan Qiyu blurted out, and his expression froze after speaking.

Extraction elements have existed in the soil of the ancient earth for thousands of years, and have formed a stable ecosystem, if the extraction elements are extracted, the ecological balance of the ancient earth will be destroyed.

Although only 9,000 acres of land content is required to complete the hidden task, it is not much. However, if the 9,000 acres of soil absorb elements disappear, no one can say whether it will cause a chain reaction such as deterioration of the surrounding soil.

Lan Ruyu thought about it for a long time before slowly saying that he had thought of a way in his heart,

"Let's look for it within the federal territory first, if you can't find it within four months, you can select nine thousand acres of land in the remote desert of the ancient earth to extract."