As the village chief, I only raise bugs

Chapter 204 204. Could root-knot nematode be a clue?
Root-knot nematode is an omnivorous plant pathogenic nematode with a wide range of damage. It is a common pest in agricultural production. Because it is very small in size, has strong fecundity, and is located in the soil, it is extremely troublesome to control.

They will form root nodules on the roots of plants, absorb the nutrients of plants, cause the damaged plants to grow short, slow, have abnormal leaf color, produce few fruits, low yield, and even cause plant death.

At the same time, root-knot nematodes are carriers of many fungi and bacteria, and can also harm plants.

Under normal circumstances, it is difficult to cure root-knot nematodes after outbreaks, because their outbreaks, in addition to their own harm, will also cause harm to other fungi and bacteria. It is very difficult to control, so we can only focus on prevention. If Uncle Meng really It is no exaggeration to say that this is a gold mine.

But even if it is a gold mine, there is no need to put people to death!

Jiang Chongshan speculates that it is most likely that Uncle Meng discovered a special kind of root-knot nematode with a special purpose, and this purpose is a threat or has a huge effect to some people.

There are two reasons for this speculation.

One is that if Uncle Meng found a good way to control root-knot nematodes, then Professor Liu will definitely continue to study based on it. If Uncle Meng lost his life because of that good method, it means that this method has been perfected or tends to be better. For perfection, after so many years, it will definitely be promoted on a large scale. Jiang Chongshan should have heard of it when he was in school, but obviously, no.

The second is that Professor Liu said just now that Uncle Meng had selected a new type of root-knot nematode.Now, there are countless species discovered every year, but almost all the newly discovered species have not been studied for any application, and the one selected by Meng Shuchan must have something extraordinary.

So Jiang Chongshan asked: "Uncle Liu, did you not continue your research?"

"I think so!" Professor Liu sighed, "But I only have that little information, no samples, and no one knows where he got the samples, so I can only put them on the shelf."

"Is there any special purpose for that knot nematode?"

Professor Liu shook his head: "This is also where we are puzzled. The root-knot nematode selected by Professor Meng has a characteristic, that is, it can enrich metals, but this characteristic is not very useful, because metals can be enriched in nature. Plants and microorganisms are particularly abundant."

Jiang Chongshan is a student of agriculture. He knows that what Professor Liu said is true. There are already organizations studying the use of plants and microbes to deal with excessive heavy metals and assist in ore prospecting. But to be honest, there is still a long way to go before large-scale application.

In addition to the application of mineral prospecting, another problem with dealing with excessive heavy metals is that the organisms that absorb a lot of heavy metals have to be treated in the end to avoid causing secondary pollution. In this way, the cost is much higher, which is very uneconomical. , so no one will use it except the laboratory.

Of course, this is a trend, and Jiang Chongshan is not going to study it in depth.

Those who hide in the dark are interested in this knot nematode?
Does this knot nematode have other characteristics that they don't know about?

Or is this knot nematode just a code name, with the real thing lurking behind it?

Professor Liu looked at Jiang Chongshan and said solemnly: "I have said so much, I just want to tell you that if you get married, the troubles of our family may affect you. I don't want to hide this."

Then he turned his head and looked at Meng Pinghui: "There is another purpose of telling you this today, and that is to let you know one of the reasons why your parents passed away. Although this is only a possibility, I should tell you!"

"Uncle Liu, is what you said true?" Meng Pinghui was surprisingly calm.

It has been more than ten years since her parents passed away, and she has grown from an ignorant little girl to an adult. However, she has always thought that her parents died in a car accident. Now she hears another theory, which should be difficult for her to accept.

But after so many years of being alone, her heart has become much stronger, because she knows that if she is not strong, no one will be strong for her, even Uncle Liu and Aunt Zhou who treat her like their own children.

Therefore, although the heart is full of anger, the surface is very calm.

Professor Liu looked at Meng Pinghui with some concern. He knew that this girl was very strong. Over the years, he had tried to help her solve problems many times, but many of them were rejected by her. This was very similar to his brother Meng.

For example, in the first year of Xiaosheng, because her household registration was still in Huanfeng, I originally wanted to help her find someone to enter the middle school attached to Zhonghe University, but she refused, saying that she would stay with her grandma.

And after her grandma passed away, they wanted to take her to live in their own home, but the girl said she wanted to live in the school.

Even after graduation, he tried to help her find a stable job, but she refused.

Over the years, she has walked forward silently by herself, and only came to his house for dinner at her repeated request during the holidays.

But since she finished college and renovated the house, she's been inviting them over.

This girl is also very grateful. Take this house as an example. There are two bedrooms in it for their family, and my daughter will come to live for two days from time to time.

I don't want to tell them about this at the New Year's Eve, but I have been dreaming about Brother Meng for the past few days, and there is a letter left in Brother Meng's information. In the letter he wrote the day before the accident, Brother Meng told him clearly that if something happened to him, he would tell his daughter about it at the end of this year.

Although I don't know Brother Meng's intentions, I can tell from the letter that their accident must not be a simple accident!

"I won't lie to you. Here is a letter from your father, which has been in my hands all these years. There is also a letter from him to me and his research materials. I will give it to you now."

With that said, Professor Liu brought his bag over.

"This USB flash drive is your father's research data photo. I'm sorry that I can't give you the original copy, because these things are in the city." He first took out a USB flash drive from his bag and handed it to Meng Pinghui, then took out two letters, "One of these two letters was given to me by your father, and the other was given to you by your father. The city read and saved the letter for you, but I didn't read it."

Meng Pinghui nodded and took the two letters.

The envelope is a very ordinary white envelope with a picture of a beach, a tall coconut tree, and a few sailboats surfing on the sea. There are some shells and a bunch of footprints on the beach.

When I was young, I had a lot of these envelopes at home. It is said that my mother who worked in the post office bought them because she liked this pattern very much, so I bought a lot of them. Now, there are many in the box she has been reluctant to open. This kind of envelope.

When she saw the envelope, she, who had always been strong, burst into tears!
(End of this chapter)