Hearing this, Jiutian swallowed back the words that were about to be spoken. Now he also sensed that something was wrong, soil fertility might not be easy for machines to detect, but it should not be difficult for an experienced spirit planter to notice. However, these two people only stared at the wheat itself in Luozhou, and did not say a word about the cause of the soil.

"I suspect that there is a problem with the wheat in Naju itself. The biggest possibility is that this batch of wheat seeds, when you bought it, was actually defective, which is why it caused a large area of death. Zhang Quandao.

Liu Qingkai nodded and said seriously: "I agree with Zhang Quan's statement, this kind of large-scale death has ruled out the cause of the disease, and only the problem of the wheat seed itself can cause such a situation." ”

Hearing the two of them say this, Jiutian couldn't help it, and said, "I don't think it has much to do with the wheat itself, I think it's caused by the illusion." Speaking of this, Jiutian deliberately paused, and waited until the three of them turned their heads to focus on him before he said, "Such as air, humidity, light...... Oh yes, and the soil. ”

Jiutian stared at the facial expressions of the two, especially when he said the word soil, his eyes were as sharp as eagles, and he didn't miss a single detail.

Sure enough, when he saw the expressions on Zhang Quan and Liu Qingkai's faces, there was a slight change when he said the word soil. Zhang Quan's brows trembled slightly, and Liu Qingkai's throat sank slightly.

It was these two details that let Jiutian know that it was not that these two people did not find the problem of the soil, but that they did not know for what reason they hid this.

However, the two of them covered it up very well, if it weren't for Jiutian's careful observation, I'm afraid it would be difficult to detect this kind of thing. Of course, he himself disguised it well, both in tone and at a very flat pace, as if he had said something insignificant.

"Environmental reasons?" Cui Zhenguo shook his head and said, "It shouldn't be." On my side, we are planted and cultivated in strict accordance with the planting method of Naju wheat, and the air, humidity, temperature difference between morning and evening, light time, etc., are all set by the machine, and there is no possibility of error. ”

In fact, this little brother is not necessarily wrong. Zhang Quan smiled and said, "The machine is dead, but the wheat is alive." Subtle differences between individuals are normal, and it is normal to grow or die due to the environment. However, there is generally no such a big loss. I just took a look and found that your soil fertility has also decreased a little, the next time you sow seeds, you should first supplement the soil with nutrients, there is a special fertilizer in the spirit plant market of the Hidden Spirit Society, you can buy it directly. ”

Jiutian sneered in his heart, how could there be some decline in soil fertility, but it had completely become a wasteland, and what to plant was to die. What kind of special fertilizer is also a palliative rather than a cure, unless the soil here is replaced with a whole layer, I am afraid that nothing will grow after that.

Zhang Quan's words were completely to divert Cui Zhenguo's attention again. Don't look at Cui Zhenguo's cultivation of Luozhou wheat for many years, relying only on the power of the machine, he himself does not necessarily understand these professional knowledge, so Zhang Quan completely bluffed him. Moreover, the current season of Luozhou wheat is no longer suitable for sowing, and the next sowing time is probably at least half a year apart, so Zhang Quan is not afraid of being exposed, and there is an excuse to push it to other reasons for such a long time.

When Jiutian heard this, he did not continue to argue with Zhang Quan. Judging from Cui Zhenguo's level of trust, unless he really punctures the intentions of Zhang Quan and Liu Qingkai, the person who completes this task will not fall on him. He is now beginning to understand that the real requirement of the system task is not just to discover the cause of the wheat wilting in Naju.

"Well, I think it makes a lot of sense, and it looks like I need to learn more. It seems that the mission points this time are in the pocket of the two of them. By the way, Mr. Cui, can I take a walk around your farm?" Jiutian smiled, revealing a harmless smile for humans and animals.

"Well, whatever you want. Cui Zhenguo nodded, except for this plantation plant. The rest of the farm didn't have anything of value, so he didn't care. And at the moment, he is very upset, and he doesn't bother to care about what he wants to do in Jiutian.

Jiutian thanked him, and then left the plantation with Zheng Weiqi.

Zhang Quan looked at Jiutian's back, a gloomy look flashed on his face, and he gave Liu Qingkai a look.

Liu Qingkai received Zhang Quan's eyes and immediately said, "Mr. Cui, I'll go to the toilet." ”

Here, Jiutian and the two walked out of the gate of the factory, and the two suddenly quickened their pace, walked to a dark place, and then squatted down together and hid their figures.

"Do you think they'll react?" asked Zheng Weiqi quietly.

"Not sure, let's try. Zheng Weiqi said.

The two fell silent, and after waiting for two minutes, they saw Liu Qingkai walking out of the main entrance of the factory.

The two looked at each other, and both saw the smile in each other's eyes. Liu Qingkai really didn't worry about the two of them and followed. It can also be determined that Zhang Quan and Liu Qingkai must be together.

However, Liu Qingkai walked slowly towards the open-air toilet of the farm and entered inside. Jiutian and Zheng Weiqi were inconvenient to follow up, so they could only wait outside.

As a result, after waiting for ten minutes, Liu Qingkai did not come out.

Zheng Weiqi's face suddenly changed, and he rushed out like a cheetah, then entered the toilet to take a look, and ran out quickly.

"Oops, fooled. Liu Qingkai climbed out of the wall behind the toilet. Zheng Weiqi said.

"!" Jiutian secretly hated, but he didn't expect Liu Qingkai's vigilance to be so strong, and he was so cautious without knowing that the two were following.

Zheng Weiqi walked around to the back of the toilet, looked at the ground, and suddenly showed joy: "It's not a big problem, although this person is cautious, he doesn't know how to cover up the traces correctly, the technique is very rough, I can follow the traces to find him." ”

Hearing this, Jiutian's spirits perked up, and he immediately asked Zheng Weiqi to follow the traces left on the ground to find Liu Qingkai. He believed that as long as he followed, he would definitely be able to know what kind of medicine was sold in the gourd of these two people.

Zheng Weiqi is worthy of being the captain of the hunter who has been in Senyuan City for several years, and he is extremely good at tracking this matter, and he can often tell the direction of Liu Qingkai's progress from a broken blade of grass.

"That's why I said, Liu Qingkai is not professional. Although he consciously wanted to hide his whereabouts. But in the eyes of experienced hunters, it is still too obvious. You can see the traces of the broken stalk of the grass, and the grass juice is oozing out to the touch, obviously it has just been stepped on. Zheng Weiqi explained a little bit of the knowledge to Jiutian.

As they walked, the two men left the confines of Mencheng Farm and came to an abandoned farm to the west.