At Qi Zheng's request, Jiangtong Group took out the most polluted piece of land near the mining area in Gaolan County for Jiagu treatment.

This was originally a piece of cultivated land, because of the topography, it was the first to be polluted by heavy metals and abandoned farming, and the area was not large, and it was more than 500 acres.

Among them, Song Tongbin, the head of the technical section, was one of the most disapproving of this, especially after he learned that the plant Jiagu chose to plant was ramie.

Ha, Liu Xu, the leader of the Jiagu team, swore by it, and Song Tongbin still had some expectations, but seeing that the so-called new variety of "gold-absorbing" plants was actually ramie, he completely hammered Jiagu's inadequacy.

He is one of the middle-level cadres of the company, and he started with technology, so he is no stranger to heavy metal-rich plants.

It can be said that the use of some specific plants to enrich and remove pollutants such as heavy metals in the soil is a field of phytoremediation technology that has attracted much attention today.

Theoretically, these super-enriched plants with specific functions can enrich toxic heavy metals into the aboveground parts, and by harvesting the aboveground parts of the plants, a large number of pollutants in the soil can be removed. In recent years, new cadmium-rich plants have been discovered.

However, due to the lack of planting base, both adaptability, economy, and ecological risks need to be examined. In addition, the cultivation and processing technology is not mature, and it is not an overnight effort to promote these plants on a large scale.

Crucially, he had never heard of ramie as a super-rich plant that was particularly capable of absorbing cadmium.

Thinking of this, he couldn't help but glance at Liu Xu, and complained in his heart, do you really think that we can only mine?

The confident Liu Xu didn't know anything about Section Chief Song's mentality. Since he joined Jiagu Laboratory, he has been responsible for building a team to control farmland pollution and ensure the safety of food production, and is committed to heavy metal phytoremediation research based on Jiagu's advantages in biotechnology.

After years of research, his team is now confident that the heavily metal-contaminated farmland can produce safe food.

Ramie, which should be called "Golden Ramie No. 1", is one of the great achievements.

This is the first battle of "Golden Ramie No. 1", Liu Xu is full of ambition and personally leads the team to guide the phytoremediation and management of this heavily heavy metal polluted land.

"Golden Ramie No. 1" is a deep-rooted variety, in order to reflect the effect as quickly as possible, Liu Xu adopted the method of cutting buds and propagation, and directly transplanted ramie seedlings.

Interestingly, the planting of "Golden Ramie No. 1" is not like the square planting used by ordinary ramie, but adopts a triangular planting pattern, which looks a bit like a cloth maze.

Song Tongbin, who was watching coldly, also asked with some curiosity: "Why do you plant hemp so ...... Messy?"

Liu Xu explained with great interest: "This is to better absorb the heavy metals in the soil. Because the heavy metals in the soil are not evenly distributed, after our testing, the planting layout in the form of such a triangle is like a network to form a large net, which has a more comprehensive adsorption of heavy metals in the soil......"

Song Tongbin couldn't help but be a little surprised when he saw Liu Xu's serious appearance. Judging by his level of dedication, he really looks like he's doing things.

Liu Xu didn't know the inner drama of the goods in front of him, and said proudly: "For the treatment of heavy metal pollution in the agricultural field, we focused on determining biological control methods at the beginning. ”

"A large number of plant analyses have shown that ramie is highly tolerant to cadmium, and some varieties can even grow on land with cadmium concentrations of up to 100 mg/kg. ”

You must know that the cadmium standard in China's farmland is 0.3 mg/kg of total cadmium, and the cadmium content of 100 mg/kg is simply heavily polluted.

"One of the secrets of ramie's resistance to cadmium is that it has an antioxidant mechanism that prevents oxidation when plants are 'stressed' by cadmium. In other words, when cadmium enters the root, it mainly stays in the root epidermal cells and accumulates in the root epidermal cells, and only a small amount is transferred to the shoot. ”

"Focusing on this characteristic, we have carried out the screening and cultivation of hemp varieties suitable for the environment of serious heavy metal pollution, and finally made a breakthrough in 'Golden Ramie No. 1'. The highest cadmium content in the roots of this variety can reach 10,000 mg/kg, which is thousands of times higher than that of ordinary plants, and the corresponding enrichment coefficient (the ratio of cadmium content in plants to total cadmium content in soil) is as high as hundreds of ......."

Song Tongbin looked at Liu Xu, who was fanatical, in confusion, and fell into deep thought: Could it be that he is serious?

But in an instant he reacted.

To say that Jiagu once cultivated some ramie plants with strong cadmium-absorbing properties, he did not doubt it, after all, there are many plants in the world, and there are no surprises.

However, as he said earlier, the characteristics of plants are regional, and the traits of plants may be completely inconsistent in another place, and some laboratory samples are even less representative.

Now it seems that Liu Xu or Jiagu don't know whether he is too confident or too naïve, and he really thinks that he has mastered the "real" technique.

In fact, it is not difficult to understand this kind of thing, and some domestic research institutions claim to have developed the world's leading technology. But if you dig deeper, a lot of the technology stays in the lab, or rather, in the newspaper that reports it in large numbers.

After the results report is over, and the evaluation of professional titles and advanced uses has been used, many "world-leading" technologies will no longer be mentioned.

The general operation is to let the "advanced technology" blind the eyes first, and then tacitly bury it quietly, and the self-confidence of such a mysterious person as Jiagu is simply a slap in the face.

Liu Xu didn't know that Section Chief Song had already made up the "truth" in his brain according to the normal situation in China.

As ramie was planted and grew taller, the team began to track changes in soil cadmium concentrations.

In less than a month, near the roots of "Golden Ramie No. 1", the measured cadmium content dropped by 5%!

Song Tongbin, who received the feedback on the results, looked indifferent, and even wanted to laugh a little.

His first thought was the falsification of Jiagu's data.

If the heavy metal adsorption efficiency is followed, doesn't it mean that in less than two years, this heavily polluted plot of land with heavy metals will be able to return to normal?

If it is really so easy, why is the control of heavy metal pollution called a worldwide problem?

This data is too fake, so fake that he doesn't even bother to complain.

Song Tongbin felt that it was time to remind Jiagu, it was okay to brag, but it couldn't go to heaven, right?

So Song Tongbin also took the inspection team in the mining area, and said to Liu Xu with a light smile: "Your data feedback is amazing, let's come and witness it......"

Liu Xu understood this and enthusiastically let them test casually.

Seeing Liu Xu, who was unimpressed, Song Tongbin fell into confusion again: Is he psychologically strong? or ...... Earnest?

After his own test data came out, Song Tongbin looked at it, and the calm look he had always maintained collapsed in an instant.

“...... Your ramie...... Is it really that amazing?"

Liu Xu was at a loss: "Didn't you say it earlier? This is already the third generation of the breeding 'Golden Lai No. 1', and it still maintains strong cadmium enrichment characteristics, which is enough to confirm its stable genetic characteristics......"

Song Tongbin took a deep breath, yes, fortunately I didn't say what was in my heart, I was blinded, so it was better to be beaten and swollen in the face!

......