"Are you sure?" Guan Chengxuan's old face showed consternation. He knows Chen Guangyuan better than Jiutian, and he has been teaching students since he was in his twenties, and he is now forty-seven years old. When it comes to mentoring students, the absolute owner has an incomparable amount of experience.

If you compare it from your own strength, Guan Chengxuan doesn't think that Chen Guangyuan will be stronger than Jiutian. But in this competition, it was not two people who started it themselves, but participated as instructors. This is a test of how to accurately instill knowledge into students, and ensure that students understand and grasp it.

Teaching and educating people is never a simple matter, and it is not that the richer the individual knowledge, the better the students can be taught. Education is also a matter that requires experience. It's like cooking, an inexperienced teacher will tell you that you need to master the heat here. And an experienced teacher will tell you when to raise the heat and when to low depending on the situation in the pot. That's the experience.

Chen Guangyuan's more than 20 years of educational experience is obviously not comparable to that of a young lecturer like Jiutian.

"Sure, and sure. Jiutian nodded.

Before Chen Guangyuan answered, several students of Cheng Deyi shouted one after another.

"Promise him, Mr. Chen!"

"They must apologize!"

Chen Guangyuan's face changed for a while, and he suddenly smiled, "Okay, since you want to compare, then compare." But I ask for a change, if you lose, it must be you who apologize personally. Vice versa. ”

"No problem. Jiutian nodded.

At the same time as agreeing, the voice of the system really sounded, and Jiutian knew that the system would not let go of such an opportunity to release a task.

"Ding! The host triggers the quest [Instructor Battle]. ”

"Mission requirements: Defeat Chen Guangyuan in the competition. ”

"Reward: [Growth Card] 1.

What the hell is a growth card?Nine Days looked at the task rewards. However, the task was not completed, and he had no way to view the reward information for the time being.

The two of them decided to compete resolutely, and Guan Chengxuan didn't say anything, or this was actually a good way, from a physical conflict to a professional conflict, at least he would not roll up his sleeves and start fighting.

"You don't have to look anywhere else. I happened to get some of my newly discovered spirit plants the other day. The state is not very good, so let's use it as the topic of this competition. Guan Chengxuan consciously served as a referee, in fact, his identity is the most suitable.

Jiutian and Chen Guangyuan naturally do not have one, and even this newly discovered spirit plant has no information to record, and what tests is the true ability of a spirit planter.

Guan Chengxuan took people to get the spirit plant, and another school staff took them to the regular operation classroom.

A spiritual plant classroom at Hanhai Academy.

In the antique classroom, there are modern operating tables. The classrooms are spacious, well equipped, and cleaned clean, with nothing special about it.

Everyone didn't have to wait long before Guan Chengxuan came, followed by school staff pushing carts. On the cart were two glass flower pots, which were filled with somewhat murky water.

It turned out to be an aquatic plant. Jiutian looked closely, this plant was not very tall, like a shrunken bamboo, only the height of a finger, and the whole body was turquoise. Part of the bamboo is on the surface of the water, part is in the water, and at the bottom are tiny white roots.

"This kind of bamboo is called blue water jade. It is a spiritual plant that has just been discovered in recent months, and it contains a wealth of water aura. From the perspective of the growth environment, it is not too harsh to cultivate, but I don't know why the survival rate after transplantation is very low, and the reason has not yet been studied. Guan Chengxuan gave a brief introduction, and then used the machine to inspect the two pots of blue water jade.

Life activity of 47.8 and 49.2 are not too much. This level of activity, in the state judgment of the nine-day system, can only be [average].

Some simple materials were distributed to both sides. Information on the initial growth environment of blue water jade.

The exchange meeting on the first day was over at this moment, Guan Chengxuan looked at his watch, and didn't want to delay time, and said, "Okay, start timing from now on, and check it in two hours." The required materials can be ordered to the staff at any time. ”

No one on either side responded, all looking at this information, or carefully observing the blue water jade.

Jiutian casually flipped through it and handed it to the three students, and then touched the blue water jade with his finger.

The information fed back by the system came to mind, and it only cost a hundred reputation points to buy the information of Blue Water Jade. Obviously, this means that the blue water jade is just a very ordinary spirit plant. In fact, Guan Chengxuan can take it out for the two parties to try, which means that this spiritual plant is not very precious.

"Okay, you take a look first, and tell me what you see. Jiutian said to Dong Yongyuan and Wen Zixin.

The two boys nodded, and in unison put their fingers into the water, and a trace of ripples rippled in the water.

This is a means of testing for the spirit planter, and through the release of qi, the spirit plant is initially perceived. It's just that Jiutian itself has grass and tree proficiency skills, so he basically won't detect like this. But for other spirit planters, it's a must-have. Through the sensing of qi, various states of plants are detected.

The state of the plant is amplified by the feelings of the spirit planter himself through qi. The more experienced the spiritual planter, the more useful information they can get from this feeling and come up with a solution.

"I feel it, cold, dry, sweet......" Dong Yongyuan said with his eyes closed.

"I feel this too, but I also have to add a small ......," Wen Zixin echoed.

Jiutian nodded, the level of these two students is still good. Feeling cold means that the current temperature is a little too low for the spirit plant, dry means that the surrounding air is not humid enough, sweet and greasy means that the nutrients are too rich, and small means that there is not enough space to grow.

The spirit planter is to conduct experiments based on these feedbacks, and finally achieve a suitable growth environment.

"Very good, if you feel cold, then what do you need to rely on?" Jiutian used the way of inquiry to guide the two of them to solve the growth problem of blue water jade.

"You can use a water temperature regulator to increase the water temperature. Wen Zixin replied.

"Good. Jiutian nodded, it was a very simple question. Then I found the staff and borrowed something like a small thermometer, which is a water temperature regulator that allows the water temperature to vary from 20 to 45 degrees in a small area. Higher or lower temperature requirements require the use of specialized cryogenic and high-temperature probes.

The current water temperature is 22.8 degrees. Nine days let Wen Zixin increase by 0.5 degrees each time to slowly adjust the water temperature. Dong Yongyuan, on the other hand, put his finger into the water and used gas to monitor the blue water jade in real time.

In fact, the spirit plant is extremely sensitive to changes in the temperature around him, after the water temperature reaches 28.3 degrees. The coldness in Dong Yongwon's perception has disappeared. This means that the most suitable growth temperature for blue water jade is 28.3 degrees.