The next day, Gwen took Orlando to the lab to visit Jiayi's soilless cultivation experiments.

Then, Gwen said to Orlando, "They just want to build a magic circle here to speed up the growth of plants, and according to Jiayi's requirements, the speed must not be too fast, and the speed must be kept even, so as to avoid the growth rate being too fast and the problem too fast to deal with." ”

Just now, she had already introduced Jiayi's set of soilless cultivation theory to Orlando, although Orlando was not familiar with it, but the results in front of her could still be seen.

Orlando called Kaichi over and asked, "How fast do you want to be if you don't go too fast?"

Kaichi thought for a moment and said, "If you can, it's best to be able to adjust the speed, make it fast when you want it to be fast, slow when you want it to be slow, and if not, then it's best to shorten the growth cycle of wheat to less than a month." This way, we have enough time to do multiple experiments and get more data. ”

If it weren't for the greenhouse and soilless cultivation, it would take a year to cultivate one season of wheat, and if this continues, even if Jiayi graduates, he will not be able to cultivate several seasons of plants, and if you want to do this well, it will take ten years.

With Jiayi's three-minute hot temperament, how could it be possible to spend so much time on this, even if Jiayi was willing, readers would be bored with it.

When he first wanted to plant elven rice, he didn't think so far, he only thought that he could cultivate seedlings first, but he didn't expect the growth acceleration array, if he just cultivated seedlings and then planted them, if he wanted to plant a season of rice, half a year was always needed.

Orlando paused, made a rough calculation in his heart, and said: "It is more difficult to be able to adjust the speed independently, even if it is successful, the room for adjustment will not be too large, but the speed you want, the growth cycle of spring wheat is 3 months, winter wheat is 8 months, you have a greenhouse, the temperature management is good, it should be regarded as spring wheat, if you want to compress it within a month, I am afraid there will be problems, and the actual use, I am afraid it will be shorter." ”

Jiayi looked at Orlando in surprise, he didn't expect him to know so much about the growth cycle of wheat, Jiayi saw all winter wheat in this world, although he knew that there was such a thing as spring wheat, but he didn't know what the growth cycle was.

In this way, the mages are not as self-conscious as they imagined, and do not care about agriculture. Kaichi thought to himself.

Gwen on the side said: "It's best to increase the free opening and closing circle, because photosynthesis cannot be carried out at night, and if you also use the growth circle at night, I'm afraid there will be problems." ”

Jia Yi was shocked by Gwen's reminder, if she hadn't reminded her, I'm afraid they would have been able to react until the first crop of wheat died in the night. At night, the plants are all respiring and cannot photosynthesize, if the growth acceleration circle has been used, it is equivalent to dozens of days without a little sunlight, and the plants will starve to death.

The wheat is about to turn leek.

Jiayi hurriedly wrote down this point, and he couldn't use the growth circle at night, and he had to turn off the circle.

After the site survey, Orlando and Gwen went back to design the circle that Kaichi needed, and Kaichi began to design a new nutrient solution.

Although the leaching solution of stone powder used in the original nutrient solution contains a large number of trace elements and various nutrients, it is not conducive to the preparation of nutrient solution because the content is not accurate and it is very difficult to dissolve.

Jiayi decided to use acid to dissolve and purify these stone powders, and then use the purified solution to prepare the nutrient solution, so that the concentration of the nutrient solution can be more precisely controlled.

Now that the theoretical basis of soilless culture is complete, some details can be optimized.

Jia Yi first prepared sulfuric acid in the laboratory, in order to invent explosives, in addition to configuring black powder, he also made nitric acid, made tri~nitrate~glycerides, and then used magic dust to absorb and create alchemy explosives, in order to make nitric acid, he also made sulfuric acid.

After the sulfuric acid was made, he dissolved the stone powder with sulfuric acid, and in order to enhance the solubility, he also added some magical strong acids to increase the solubility.

After purifying and crystallizing, Jiayi also treated saltpeter by the way, and obtained a variety of relatively pure potassium nitrate, ammonium sulfate, and trace element fertilizers such as phosphate fertilizer, calcium fertilizer and magnesium.

These newly purified fertilizers have good solubility, are conducive to plant absorption, and are more convenient to configure nutrient solutions, and are convenient to control the concentration and content of various components.

After three days, Orlando's plant growth circle was designed.

Orlando and they came to the laboratory, and as soon as they entered the door, they smelled a strange smell, Orlando frowned, looked at Jiayi and said, "What is this smell? You shouldn't be peeing in the laboratory, right? This laboratory is just for you, you can't mess around." ”

Jia Yi covered his forehead one by one and sighed: "What, what is peeing, this is the smell of ammonia, I have been preparing a new nutrient solution for the past few days, and a lot of ammonia has been produced in the process, so it smells like this." ”

Orlando still knew about ammonia, but he didn't think about it for a while, after all, there was no fertilizer in this world, and there were few products like ammonia in experiments, so he didn't think of this for a while.

"Mix nutrient solution? Last time you came here, you put several large vats here, and they all had such a heavy smell. ”

Gwen said as she unleashed an air-fresh spell on herself, blocking out the smell of the lab.

In addition to the smell of ammonia in the laboratory, there is also the sour smell emitted during the preparation of strong acids, and the choking smell of lime water.

It's just that Jiayi and they have been here for a long time, and they don't feel very good when they get used to it, just like the so-called abalone, and don't ask about its smell for a long time, it's probably this feeling.

Kaichi hurriedly opened the window, controlling the airflow to blow the smell of the room away from the window, and it took several minutes for the smell in the laboratory to fade, and Professor Gwen removed the spell on his head to block the smell.

Orlando and Gwen came to the window, and then began to arrange the magic circle, while arranging, Orlando taught Jiayi: "The next time this kind of experiment with a strong pungent smell should be noted, these are harmful to the body, although the mage is often exposed to the erosion of magic elements, the resistance is relatively strong, but if you are exposed to these harmful things for a long time, you will still get sick, and even death is not impossible." ”

Although the mage's body strength and physique are not strong, it is far worse than that of knights, but at least the physique is stronger than ordinary people, and the resistance is even more incomparable to ordinary people, and neither can knights.

Gwen added, "Some of the older curses have used these harmful gases to erode the human body, and you can think that your current experiments have produced a faint curse, and if it were an ordinary person around, it would have been harmed." ”

In this way, many rumors about the mage conducting vicious experiments are probably due to the fact that the mages did not conduct the experiments in a standardized manner, and discharged the waste in the experiments at will, which eventually polluted the surrounding environment.

The so-called mage's curse is a pot that did not properly dispose of waste materials during the experiment, thanks to the fact that the mage has not used radioactive materials for the experiment, otherwise this curse would have been passed down for many years.

Li Wei'er and the others watched Orlando depict the magic circle next to them, Jia nodded and said: "I know the teacher, I will pay attention next time, this time because I am in a hurry, so I ignore this point, next time I will go to an open place to conduct an experiment." ”

Jiayi also relied on his own good health, so he lacked the necessary foresight for the side effects in the experiment, and when he was doing the experiment in junior high school, the hydrochloric acid touched his hands and was directly cleaned, and he felt slippery and greasy.

For the sake of safety, the experiments conducted on students in middle and high schools are rarely more dangerous concentrated nitric acid or concentrated sulfuric acid, most of which are diluted, and they are fine when they are flushed with water.

The most dangerous thing he ever touched, even the black powder he had configured.