Chapter 971 Nitric Acid

"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 wanted 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 surprised. He was shocked: "How can water and mud eat people?"

Academician Chu patted his thigh excitedly: "Can I still lie to you? Some of our colleagues have gone down there, and even if they wore water shoes, they only stayed there for a day. After a while, when I came ashore again, my feet and calves soaked in the water became red, accompanied by a burning pain that didn't go away for a long time. "

Academician Chu said he can "eat people", It's 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 rice seedlings very carefully. We take care of them completely according to the manual you left. We don't dare to slack off. You specifically explained it. , try not to use fertilizers or the like, so that we can more intuitively observe the growth of the seedlings, so we have never applied fertilizer

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

"Is this nitric acid? What is it? "

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

"Fertilizer?" What are chemical fertilizers..."

Academician Chu is 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 ones currently used

Judging from the current situation, the fertilizers in the rice fields were not spread by anyone familiar to Academician Chu.

After hearing what Xu Wanning said, Academician Chu also understood that someone must be there . Behind the scenes, they secretly spread chemical fertilizer into the rice field while they were not paying attention.

"Adding a small amount of chemical fertilizer appropriately can promote the growth of the rice 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 understanding of nitric acid, the time to spread this fertilizer should be between three to five hours after you find the rice withered.

If it is earlier, If so, given the corrosive nature of nitric acid, all the seedlings in the entire field will be withered and no one will survive.

"If it takes three to five hours, it will be easier to conduct an investigation. 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 and traveling. So, I will take you to eat something first." A simple meal, and then you guys have a good rest. After I find out the culprit, I will reward you well.

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

." The accommodation is naturally a guest house near the Academy of Agricultural Sciences.

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

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

Academician Zhang was silent for a moment, and suddenly asked: "Then who do you think the person who did it will be? "

This..." Xu Wanning whispered: "It's nothing more than those who can't see that China is getting better and better.

Whether they are Japanese people or those who surrender to the enemy and betray the country, it is possible."

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 and want to go for a walk. You don't have to worry about me and just do your own thing.

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

." Xu Wanning must

have gone to the stall where she bought the radio and hair dryer first.

"Beautiful girl, are you 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 half a year since she last came here.

The boss said with a smile: "You are much prettier than our local girls in Yangcheng. You are also generous and easy to talk to. For a beautiful girl like you, I You may not meet a few people in your life when you open your business, but of course you will have a lasting memory. 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 there are. The most popular ones now are mobile phones and mobile phones. But the gadgets of mobile phones are not expensive. I can't even buy one at this stall, but I do have a few of them here. Just wait, I'll show them to you.

The boss turned around and went into the back room. When he came out, he was holding a few in his hands. The box.

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

This was the first time Xu Wanning had seen the phone. It was

said that she had only seen it in pictures in

the 1990s . Mobile phones have been popular for a while. After all, the big brother often costs thousands of dollars more, and is as big as a big brick and is too big to carry. In comparison, mobile phones are small in size and affordable, so people who use them A lot.

“Boss, how do I use this secret? "

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

"Boss, you have to tell me the truth. Without a paging station, this phone is just like a toy. It can't contact anyone at all

. Although the phone has many functions, it has more restrictions on its use.