Chuan Shu Qi Leng: I own a department store

"This is the rice field, and the dead hybrid rice is still inside. We didn't touch it casually until we found out the cause."

"Academician Chu, can you give me a pair of water shoes? I want to go down and have a look."

"This is impossible! Comrade Xu, you don't know that the water and mud in this rice field can eat people!"

Xu Wanning subconsciously looked at Academician Chu: "Can water and mud eat people?"

Academician Zhang was also shocked: "How can water and mud eat people?"

Academician Chu patted his thigh excitedly: "Can I still lie to you? Some of our colleagues went down there. Even if they wore water shoes, they only stayed for a short time. When they came ashore again, they were soaked in the water. My feet and calves became red, accompanied by a burning pain that didn’t go away for a long time!”

What Academician Chu said about "eating people" was just an exaggerated metaphor.

But it is an indisputable fact that there is a problem with this rice field.

Xu Wanning didn't dare to go down rashly, so she asked someone to bring a stainless steel basin over and scoop out some water.

After observing for a while, she made an important discovery.

"Academician Chu, do you usually have the habit of applying fertilizer to the rice fields?"

Academician Chu shook his head: "We take care of these seedlings very carefully. We take care of them completely according to the manual you left. We don't dare to slack off. You specifically stated that you should try not to use fertilizers or the like so that we can observe it more intuitively. The seedlings are not growing well, so we haven’t fertilized them.”

"However, judging from the condition of this basin of water, there is nitric acid in the rice field."

"Nitric acid? What is this?"

"Nitric acid is a strong acid with strong oxidizing and corrosive properties. It is a chemical substance that belongs to the monovalent inorganic strong acid. It is one of the six major inorganic strong acids and an important chemical raw material. From an industrial point of view, nitric acid can be used It is used to make fertilizers and pesticides. To put it more bluntly, there are fertilizers made from nitric acid in rice fields.”

"Chemical fertilizer? What is chemical fertilizer..."

Academician Chu was still confused.

Xu Wanning knows that it will take a few years for chemical fertilizers to be widely popularized, because there are not too many chemical elements discovered and possessed in China, and the fertilizers used now are only the most basic ones.

Based on the current situation, the fertilizer in the rice fields should not have been spread by someone familiar to Academician Chu.

After listening to Xu Wanning's words, Academician Chu also understood that someone must be tampering behind the scenes and quietly spreading fertilizer into the rice fields while they were not paying attention.

"Adding a small amount of chemical fertilizer appropriately can promote the growth of seedlings, but if the amount is too large, the current situation will occur. Because of excess nutrients, the seedlings cannot accept it, so they will die in large areas."

"According to my knowledge about nitric acid, the time to spread this fertilizer should be between three and five hours after you find the rice is dead."

If it had been earlier, due to the corrosive nature of nitric acid, all the seedlings in the entire field would have been withered to death, and no one would have survived.

"If it takes three to five hours, it will be easier to investigate. Comrade Xu Wanning, thank you very much. If it weren't for you, I believe we wouldn't have discovered the problem even if we tried our best."

"It's getting late, and you have really worked hard after traveling a lot. In this way, I will take you to have some light meals first, and then you can have a good rest. After I find out the culprit, I will reward you well."

"You're welcome, Academician Chu. We know where the canteen is. Just go and eat by yourself. You can go about your business first and don't worry about us."

As for the place to stay, it’s naturally a guest house near the Academy of Agricultural Sciences.

On the way to the cafeteria, Academician Zhang asked, "Wan Ning, is the matter settled now?"

"How should I put it? Now we have just found out the cause of this situation. If we want to really solve the problem, we have to wait until Academician Chu finds out who did it."

Academician Zhang was silent for a moment and suddenly asked: "Then who do you think will be the one who takes action?"

"This..." Xu Wanning whispered: "It's just those people who can't see that China is getting better and better."

It is possible whether they are Japanese people or those who surrender to the enemy and betray the country.

Because Chinese people who truly love their motherland only hope that hybrid rice will become popular as soon as possible, so that the problem of people not having enough to eat can be fundamentally solved.

After simply eating something in the cafeteria of the Academy of Agricultural Sciences, Xu Wanning and Academician Zhang went to the guest house.

After returning to the room and putting away her things, Xu Wanning said to Academician Zhang: "Academician Zhang, I have nothing to do now. I want to go for a walk. You don't need to worry about me. Just mind your own business."

"Okay, okay. Then you must pay attention to safety."

"must."

Xu Wanning first went to the stall where she bought radios and hair dryers.

"Beautiful girl, you're here? Long time no see. How are you?" The boss, who was originally lying on the recliner, saw Xu Wanning approaching and immediately stood up to say hello.

Xu Wanning asked in surprise: "Boss, do you still remember me?"

It's been a little over half a year since she last came here.

The boss smiled and said: "You are much prettier than our local girls in Yangcheng. You are also generous and easy to talk to. I may not meet many beautiful girls like you in my whole life when I open my business. Of course, I will have a deep memory." La. Pretty girl, what do you want to buy this time?"

Xu Wanning asked: "If there are any novel gadgets recently, boss, please introduce them to me."

"Yes, of course. The most popular ones now are BP machines and mobile phones. But mobile phones are not very expensive. I can't even buy one at this stall. But I do have a few BP machines here. Taiwan, just wait, I’ll show it to you.”

The boss turned around and went into the back room. When he came out again, he was holding several boxes in his hands.

He placed the box in front of Xu Wanning, opened it, and took out the BP machine inside.

This is the first time Xu Wanning has seen a BP machine.

In her previous life, she had only seen it in pictures.

It is said that BP machines were popular for a while in the 1990s. After all, Big Brother costs thousands of dollars more and is as bulky as a big brick and is difficult to carry. In comparison, BP machines are small in size and low in price. It is also affordable, so many people use it.

"Boss, how do you use this BP machine?"

"It's very simple. As long as you leave a message to the owner of the other machine, he will reply to you after seeing it."

"Boss, you have to tell the truth to this pretty girl. Without a paging station, this BP machine is just like a toy, and you can't contact anyone at all."

Although the BP machine has many functions, its use is more limited.