On the way to the rice seedling field. Pen, fun, pavilion www. biquge。 info

Everyone was talking about it all the way.

The villagers who were not called became curious.

"Big fat, why are so many of you going?"

"Is there something going on? Why are they all following the second father and son?"

"Why don't the experts look good?

"No, no, Xiaowei said that a solution has been found, but the experts don't believe it, and now prove it. ”

"Ah, the experts didn't expect a way, Xiaowei found it, and he still wants to prove it? Wait, I'll take a look. ”

As he spoke, another wave of people joined in.

Zhang Wei's house is a little far from the rice seedling field, and there are villagers asking questions along the way, and in the end, the team has grown to seventy or eighty people.

And after questioning, these people who joined later learned that Zhang Wei wanted to solve a problem that the experts couldn't solve!

Is it possible?

That's an expert!

If you want to solve the problem, experts can't solve it? This is either bragging, or Zhang Wei is really like the legend of the villagers, the reincarnation of the gods!

Zhang Wei, who was walking in front, sweated for a moment, and the solution was not something he came up with, but the old man Yan pointed out the maze, but the villagers and experts did not believe that it was the solution that they learned after inquiry, and the reason was that the experts said that they had no solution, and they couldn't solve it, and there were people within Jinghai who could solve it? Don't be kidding, there are really such people who can go to the National Academy of Agricultural Sciences to become professors, and they will still nest in Jinghai? The experts even admit death, thinking that Zhang Wei and Zhang Aiguo do not trust them, and now Zhang Wei is relying on the method that the prodigy himself has come up with.

Arrived next to the rice seedling field.

"Er, how do you dig?" asked the old farmer, carrying a shovel.

Zhang Aiguo turned his head to look at Zhang Wei, "You talk to them." He didn't remember what Old Man Yan said at all, it was a bit mysterious.

Zhang Wei said with a smile: "Just dig the ridges on both sides of the rice seedlings." ”

As soon as the old farmer put down the shovel and was about to excavate, Expert Mu walked over and waved his hand to wait for a while, then squatted down, grabbed a handful of soil from the ground and looked at it carefully for a while, he wanted to make sure that the soil was the same as the one tested at noon yesterday, and after making sure that it was still the case, he stood up and said, "Dig it." ”

Everyone looked at the old farmer.

Zhang Wei said to the old farmer: "Third grandfather, dig a little deeper later, about half an arm of mine is as deep." The roots of the rice seedlings are only palm-deep, but in order to make sure that the old farmer digs a little deeper, and the alkaline soil and the acidic soil can be seen as long as they are dug out and looked closely.

"I know. The old farmer dug his shovel into the soil, spat on his palms, rubbed his hands, shouted a trumpet, and dug up.

The soil was dug out little by little, Zhang Wei looked at it carefully, and when he saw the color of the soil that Old Man Yan said, he immediately shouted, "Wait, this is acidic soil." ”

So fast?

Got acidic soil?

That's just three or four shovels!

Many villagers showed suspicious looks, obviously thinking that Zhang Wei was a bit tricky, and just said that he would dig half an arm deep.

However, Expert Mu, Expert Bian and Expert Dai are different, they are all top experts in agriculture, and when they look at the soil, it seems that there are some different colors.

Expert Dai stepped forward and grabbed a handful of soil, "Generally, acidic soil is darker in color, mostly black-brown, while alkaline soil is white, yellow and other light colors, but this soil is still black and yellow, how can it be acidic soil?"

Black-yellow acidic soil?

Expert Bian shook his head again and again, this Mr. Zhang's son is not reliable at all, he pretends to understand if he doesn't understand!

Zhang Wei's face was relatively calm, he also grabbed a handful of soil on the ground, spread his palms and said: "You see, although this soil is black and yellow, it is relatively loose and soft to grasp, and the permeability is very good, which belongs to acidic humus. ”

The experts widened their eyes, judging by their feelings?

Expert Dai shouted: "Humus is not this color!"

Expert Bian also stepped forward and grabbed a handful of soil, "The texture is a bit like humus, but the color is not at first glance, which does not conform to scientific evidence!"

"yes, little... Xiaowei, right?" Expert Mu also said, "Humus shouldn't be this color, I can't be wrong when I have been engaged in agriculture for decades!"

Zhang Aiguo smiled and said, "Xiaowei, what did Master Yan say? ”

Everyone shook their heads, at this time, they were still talking about "Master Yan", and directly said that Xiaowei came up with it, anyway, he is still a teenager, and no one will laugh at it.

Zhang Wei smiled, squatted down, and everyone's eyes followed him to the ground, "I'm not talking nonsense, Expert Mu, you have been engaged in agriculture for decades, you should know that acidic soil is relatively loose in texture and has strong air permeability, while alkaline soil is hard and easy to clump into lumps, generally speaking, the ventilation and water permeability are relatively poor, right?" These are all things that Old Man Yan said to him, but Old Man Yan couldn't have said it so professionally, and he said everything according to his own understanding.

As he spoke, Zhang Wei gently rubbed a lump of soil and immediately sprinkled it down, "You see, this is completely in line with the texture of acidic soil, the reason why the color has not changed is because these soils are not completely acidic, it can only be said to be weakly acidic, if it is just like this, it has little impact on the growth of rice seedlings, but it is already weakly acidic soil here, how acidic is the land below?"

Expert Mu glanced at Zhang Wei in surprise, he couldn't imagine that Zhang Wei actually had this research on soil!

Not only him, but Expert Bian and Expert Dai also showed a look of surprise, Mr. Zhang's son knows a lot!

The eyes of those villagers were a little wide, and they were thinking in their hearts, they were worthy of being prodigies, and they even knew the texture of the soil!

These are all said by Old Man Yan and Zhang Wei, but no one believes it, there is no effort in the study of soil, how can they know so thoroughly? How did they know that when they were in Pheasant Water in the morning, Old Man Yan also taught Zhang Wei how to identify little by little, not only the identification of soil, but also the different rhizomes of the surrounding plants, etc., although he could not say so carefully, but it should be enough for these three experts to agree, after all, the experts are all people with professional knowledge.

For the study of soil, Mu expert is the most authoritative, and he nodded slightly in agreement with Zhang Wei's words, "It is true that the difference between acidic soil and alkaline soil is here, but this soil looks like neutral soil, you must know that many neutral soils are like this in relatively humid places, and it is not completely certain." ”

"He is worthy of being an expert from the National Academy of Agricultural Sciences. Many people praised it, "The research is cautious." ”

Zhang Wei didn't speak, he directly pulled out a rice seedling from the side, and then pointed to the root and said, "Take a look, is the root of this rice seedling slightly rotten, and there are small black holes on it?"

Expert Dai specializes in rice, took the rice seedlings from Zhang Wei's hand, raised them slightly, squinted his eyes and looked at it again, "Yo, there are really traces of decay, there are small holes on it, but this slight decay is normal, even if the rice seedling roots grow in neutral soil, it is generally good after transplanting, it doesn't mean anything." "He's an expert with real talent.

Expert Bian also listened again and again.

Many folks chose to believe the words of experts, after all, they had never seen such a learned person in their lives.

Zhang Wei knew that what he said was reasonable, and continued: "In fact, it is very simple to know if it is acidic soil, you can test these soils to know, the easiest way is to dissolve the soil in cool boiled water, and then put it in with pH test paper, if the pH value is equal to 7 is neutral soil, if it is less than 7 is acidic soil, you all know these, you don't need me to say it." ”

Everyone laughed, and in the end, it still depends on the test.

Expert Bian had already laughed, and directly said that the test would not be done, why did he explain so much?

Zhang Wei could have directly asked for the test, but in order to prove that he and his father did not distrust the three experts, he explained in detail as Old Man Yan said, or he could not convince them, even if the test was found to be acidic, these experts thought that he would definitely have a pimple in his heart when he touched a dead mouse.

As for what should have been explained just now, it is only necessary to test it out and believe that these three experts can determine it, and there will be no pimples in the heart compared to what was said before.

"Dad, you can help the experts get some testing tools. Zhang Wei looked at Zhang Aiguo.

Zhang Aiguo snorted and said to the three experts: "Where do you put the testing tools? I'll get them." ”

Expert Dai took the initiative to say: "In the laboratory, if you can't find it, I'll accompany you." "The lab is not far from here, and it's only a two- or three-minute walk.

The two of them said and turned to leave.

Zhang Wei asked the old farmer to dig a few more shovels, and waited until half an arm's length before stopping, but the color of the soil was no different from the previous one, but he squatted down and touched a few handfuls, and felt that the soil was more loose, and it should be more acidic.

Five or six minutes later.

Zhang Aiguo and Expert Dai each walked over with a basin of water.

Zhang Wei took the initiative to take the soil dug up earlier and put it into the basin and stirred it, and then asked for a pH test paper from Expert Dai and put it in, "Now we only need to look at the acidity on the test paper to determine." ”

Everyone stared at his hand holding the test strip.

Soon, Zhang Wei took out the test strip, stood up and said to everyone with a smile: "6.8, acidic." ”

It's really acidic!

Expert Dai took a breath!

Expert Bian didn't believe it, grabbed the test strip and looked at it, and was stunned over there!

Expert Mu also took the test strip and looked at it, and immediately raised his own questions, "Xiaowei, 6.8 is indeed acidic, but you just said it yourself, this acidity will not affect the growth of rice seedlings, so how can rice seedlings get rice blast repeatedly?"

"yes!"

"Just now Xiaowei also said that it will not affect it. ”

"That's right, what Expert Mu said makes sense, and an intellectual like him won't say anything. ”

The villagers are also wondering.

Zhang Aiguo was a little stunned when he heard these words, he didn't understand chemistry, he looked at Zhang Wei and said: "Xiaowei, is it really like they said that this bit of acidity will not affect the growth of rice seedlings?"

Zhang Wei nodded with a smile and said: "Indeed, this acidity will not affect the growth of rice seedlings, and the reason why rice seedlings repeatedly get rice blast is still that the soil is acidic.

"Huh?"

"Won't it?"

"The colors are all about the same, why is the acidity stronger?"

Everyone was stunned!

What about us blind? The color of the freshly dug up hasn't changed much from the previous digging, okay?

Zhang Wei didn't speak, he directly grabbed a handful of freshly dug soil and threw it into the clean basin of water, and asked Expert Dai for a pH test strip, and then put it in a plastic basin.

"Now, let's take a look at the acidity of the newly dug soil!" Zhang Wei directly took out the test strip, glanced at it, and raised it, "4.0!"

Present.

The smile of Expert Bian, who was originally smiling and shaking his head, froze on his face!

And the villagers who thought Zhang Wei was talking nonsense just now were collectively quiet!

The 4.0 folks don't understand what it represents, but compared with the value of 6.8 just now, they know that the acidity of 4.0 is very high, and they were shocked, the soil of almost the same color has so much worse pH!

"It's only 4.0!" said Expert Mu!

Expert Dai was stunned, "Why doesn't the color look like acidic earth?"

Zhang Aiguo said indifferently: "Anyway, it's acidic soil, whether it looks like color or not." ”

Expert Mu glanced at him dissatisfiedly, and said in a serious tone: "This is academic, we don't understand academics, so we naturally have to overcome them!"

Expert Dai and Expert Bian also nodded in agreement.

Zhang Wei decided to tell the whole story of Old Man Yan, of course, these words were sorted out by him, but he also felt that Old Man Yan should not be an ordinary person, otherwise it would never have been possible to have such a powerful insight.

He looked at Expert Mu and said: "According to the different environmental regions of our country, the soil is generally divided into brick red soil, red soil, red soil and yellow soil, yellow-brown soil, brown soil, dark brown soil, cold brown soil, brown soil, chernozem, chestnut limestone, brown soil, black soil, desert soil, Meadow soil and desert soil, and our side is in the middle and lower reaches of the Yangtze River plain, belongs to the yellow-brown soil, and the yellow-brown soil contains aluminum, which is colorless under the synthesis of acid, that is to say, these black soils have been completely corroded by acid, and these yellow ones are still in the process of acidification, because the acidity has not reached the peak, so these soils will continue to maintain this color, unless the acid is too concentrated and all corroded. ”

A bombshell!

Everyone present was stunned!

It turned out to be the original soil!

Expert Dai looked shocked and lost his voice: "This is the reason!"

"Why didn't I think of that?" Expert Bian patted his head fiercely, "It's actually a problem with the original soil!"

Expert Mu was moved, and exclaimed: "The problem we couldn't figure out was solved by a teenager, amazing, really amazing! I said why rice seedlings repeatedly get rice seedling diseases, it turns out that the soil is really too acidic!"

The villagers' eyes had already dropped to the ground, and the three experts used three "unexpectedly," and one can imagine how surprised they were! These are three experts with profound knowledge as vast as the sea! Even they used unexpectedly to express their surprise! Damn, Xiaowei, you are too fierce!

What is the identity of Expert Bian? An expert from the Provincial Academy of Agricultural Sciences in the past!

That's the apprentice of Professor Yuan, the father of hybrid rice!

Expert Mu is even more amazing, this is an expert of the National Academy of Agricultural Sciences, and his knowledge in agriculture is the top in the country!

The three of them couldn't figure out the question, but Zhang Wei and a teenager talked about it, this is the rhythm of the sky!

Prodigy?

Where the are you a child prodigy?

It's clearly an omniscient immortal!

Everyone's eyes looking at Zhang Wei were filled with an inexplicable awe, it must be a god descending to earth, it must be like this!

Otherwise, why do you understand so much?

Until now, they still don't believe that Zhang Wei has asked others, even if someone teaches, can they master so much knowledge in one morning?

Everyone present felt that Zhang Wei was incredible, more powerful than the three experts! Someone suddenly thought of a sentence, only the sky is his limit, and this sentence is completely in line with Zhang Wei! )