After class in the afternoon, Jia Yi and a group of them came to the laboratory to gather, and Li Weier brought five people over, among which the leader was Xiusley.

The last time he met the dragon carp, Jia Yi found that the two of them were a little ambiguous, but now sure enough, as soon as he saw Li Weier summoning him, the other party ran over, like a dog that saw meat and bones.

Jia Yi glanced at Xiu Sili with disdain, just this dog-legged appearance, will he still have family status in the future? If Jia Yi himself, he would definitely take the initiative to come over to help, and he was still waiting for Li Wei'er to summon him, he was really not conscious at all.

They didn't know, in fact, the other four people were also brought by Husley, these four people were Husley's friends, and they didn't have anything to do recently, and they were stalked by Husley and pulled over to help.

If it weren't for Husley, it's hard to tell if anyone else would have come to help. Jia Yi actually has some fame, but after all, he didn't get it in the academy, and the rest of the people still have some doubts about Jia Yi's ability, and it seems that plant classification is not a good project.

After painstakingly combing it out, later people only need to use it, and they will get nothing but a little fame. Of course, reputation is not useless, most of the mages in this world are stuck at the level of gray-robed mages, and a little reputation is a head above others.

So the four people who were pulled over were not too reluctant, but they felt a little embarrassed, because Jia Yi was younger than all of them and was still a first-year freshman. No matter what world you are in, there are people who value seniority, but mages were slightly weaker before.

As for the matter of the elf rice seed, except for Xiusley, the rest of the newcomers don't know, if it spreads, maybe more people will come, but it may also attract people's jealousy, in order to keep it secret, Li Weier didn't publicize it when she recruited people.

Kaichi said hello to Husley, and then taught them how to record, which had already been recorded, and those things needed to be repeated continuously.

After all the teaching, Kaichi went to the experimental table on the side, ready to start preparing the nutrient solution.

In fact, it is not difficult to say that the nutrient solution of plants is not simple, it is not easy to say that it is not easy to make seeds germinate, and it is not very difficult to even grow, but it is not easy to grow quickly and healthily.

The most important element in plant growth is nitrogen, and the world should be no exception. Jiayi uses saltpeter and limestone, and a rock between quartzite and granite to grind into powder, plus phosphorite powder, and then dissolve into water to make a solution, which becomes the first nutrient solution.

Saltpeter is easily soluble in water, can provide a large amount of nitrogen and potassium elements, Jiayi in his last life, there was a compound fertilizer of potassium nitrate, but this thing is unstable, after the use of a hammer to break open it is easy to explode, but also can make gunpowder, and was later eliminated. The rest of the stones are insoluble in water, but when ground into powder and soaked in water, some of them will dissolve and provide some trace elements for the plant.

With Jiayi's shallow farming experience and the biological knowledge he had learned, he could only think of this for the time being, and because of the lack of corresponding materials, he could only use this primitive way to prepare the nutrient solution, and the composition of the nutrient solution obtained was not accurate, and could only be roughly estimated.

Because of the composition of the stone, even the composition of the nutrient solution he mixes every time is different, but fortunately, plants, like humans, have a certain self-regulation ability, and there are some differences in the ingredients, but as long as the difference is not too much, the problem will not be too big.

And there is also magic assistance, this is the confidence of Jia Yi to dare to explore the nutrient solution from scratch, with magic assistance, although there is no guarantee of success, but the fault tolerance of the experiment is greatly enhanced.

The finer the stone is grinded, the more nutrients are dissolved, and with the help of spells, each stone is ground into fine flour-like soft dust.

The few people brought by Husley hadn't left yet, they were familiar with the props on the side, and when they saw Jia Yi grinding stones, one of them asked curiously, "Jia Yi, what are you grinding these stones for?"

Jiayi grinded the stone hard, even with the help of spells, it was not very easy to grind the stone, and he said without raising his head: "This is used to prepare the nutrient solution, used to refine..."

"For those who cultivate plant seeds, he said that water is the most important thing, and soil is not important, so he has to engage in unplanned cultivation to raise plant seeds. Before Jia Yi finished speaking, he was interrupted by Li Wei'er and didn't let him tell him about the elf rice.

Regarding the fact that they are cultivating elf rice seeds, Li Weier and they still hope to hide this matter first, although no one in the academy will dare to come to find trouble, but they can always avoid some trouble, and I don't know if this matter can be successful, before the conclusion is reached, Li Weier doesn't want to publicize it, so as not to make people think that they are not self-sufficient.

If it is really successful, then it will not be able to publicize it, the benefits are too great, and maybe some people will take risks. In short, it is better to keep it secret until there is no result. Although there are many people who know about the fact that Jia Yi has an elf rice clock, most of them are teachers, and few people know about it that they have begun to cultivate.

When Jia saw Li Weier interrupting him, he also understood that she didn't want her to publicize this matter, although he felt that it was a bit of a fuss, but he didn't mind the other party's kindness.

Following Li Weier's words, he continued: " The most important water in the process of plant growth, then minerals, and of course sunlight is also essential, these do not necessarily need soil to provide, Pastor Hymond's willow pot experiment has proved that soil is not as important as imagined, and the Great Druisneby has further discovered photosynthesis, proving that sunlight is an indispensable condition for plant growth, and further established the theory of mineral business, so these have formed the basis of uncultivated culture. ”

Everyone was dizzy by what Jia Yi said, these are the knowledge of plants, and the founders are not mages, even if Li Weier refines botany, they know very little about these, let alone the rest.

After all, botany is not specialized in planting, Jiayi's set of theoretical foundations, to the end of soilless cultivation, is actually the category of agriculture, and among the mages, the knowledge of agriculture is undoubtedly relatively weak, this kind of talent is generally in various kingdoms, and almost none of them are mages, because of the reason of knowledge, they may have experience in the cultivation of crops, but the theory is much weaker than Jiayike.

Husley listened with great admiration, and his confidence in Jia Yi improved a lot: "Jia Yi, how do you know so much? ”

"I like to read, and I have a good memory, and I remember it when I read it. ”

Jia Yi can't tell them that these are what he learned in his previous life, and his educational experience in his previous life has laid a very solid foundation for him, and those textbooks are compiled for many years, as well as many years of experience in systematic teaching, and the knowledge taught is more systematic, and I don't want to think about the other world.

For this alone, Jia Yi has left the rest of the people a lot, not to mention that the level of scientific theory in his previous life is much higher than here, and he has also received the influence of the information explosion era, and his knowledge is incomparable to the people here.

However, Jia Yi knew that Hymond and the Great Druisneby really found it by reading books by himself, and he compared the common sense of the two worlds and found that many places of Wulihe chemical knowledge were interconnected, so he consciously began to compare the knowledge base in his memory to find the corresponding theoretical discoveries in this world.

In this way, even when copying papers by yourself, you will not accidentally crash, and through comparison, the speed of learning and absorption will be accelerated a lot, because this is not relearning, but verification and adjustment.

There have been a lot of theoretical discoveries in this world, some of which are equivalent to the level of the last world around the 19th century, but there are not many practical applications of theories, perhaps because the mages have no worries about food and clothing, and they have great power, and the living standards of ordinary people in this world are still around the European Middle Ages.

In fact, this has also given Jiayi a lot of convenience, at least some of the basic preconditions for theoretical research have been satisfied, and "invention and creation" has also become easier, more at ease.

(Face........ ）