"Since Du is so confident, there is no problem in thinking about it, and he will go back to restore his life in the future, so I won't bother. When Qiao Jiangnan saw Du Fan's confident appearance, he relieved himself and said his farewell.

"Okay, there is nothing to entertain here this time, but the next time Elder Qiao comes back, he will be able to taste the spiritual tea I personally planted. Du Fan smiled slightly, clenched his fists and said.

"What? The cultivation of spiritual tea is extraordinary, Du Xianfeng can actually do this? Qiao Jiangnan couldn't help but be stunned when he heard this, glanced at Du Fan deeply, and said.

After Du Fan sent Qiao Jiangnan away, he went straight to the laboratory on the second floor, and his face could not hide his excitement.

The previous set of experimental instruments was dismantled by him and thrown aside, no longer looking at it.

He took out one of the three sets of instruments sent by Qiao Jiangnan, quickly assembled them, and began to use the gluttonous hair to refine the ripening powder, or rather, it can also be called a catalyst.

In fact, he didn't confess to Vice Alliance Leader Xiao at that time, how many years of spiritual herbs to refine, the most important thing is not the instrument, nor the fire temperature, but the catalyst.

Of course, the refining of the catalyst was also limited to the instrument and the temperature of the fire, so Du Fan was not completely lying at that time.

Du Fan glanced at the other two sets of instruments, took out one set again without saying a word, assembled it, and used the old catalyst from the past to begin to refine the juice essence of the spirit herbs below ten years.

And he didn't waste the third set of instruments, took out the juice essence in the inventory, and began to mix low-grade essential oils such as Qi refining essential oil and concentrating essential oil.

When everything was on the right track, Du Fan didn't go to the cultivation room, but sat directly on the floor of the laboratory, took a drop of Qi refining essential oil, and began to cultivate.

A few hours later, Du Fan opened his eyes with a feeling and walked to the set of instruments for refining ripening powder.

After a brief observation, he nodded to himself, and immediately turned off the blue fire platform, took out a transparent bottle from the instrument, held it in his hand, and observed a small pinch of black powder inside.

"Changing the material of the instrument and increasing the fire temperature can really refine a higher purity ripening powder. After a long time, Du Fan said with a look of joy on his face.

"Now that the purity of these ripening powders, theoretically speaking, there should be absolutely no problem in refining the juice essence of fifty-year-old spirit herbs.

However, this is not the limit, now the fire temperature of the blue fire platform is only the lowest level, a few more experiments, maybe there will be unexpected results, and the final refinement of the ripening powder, I will name it as a first-class ripening powder.

As for chemical fertilizers, the current strong chemical fertilizers can increase the growth rate of spiritual herbs by between ten and twenty times.

If I can use the first-level ripening powder that is about to be born to improve its effect by a large margin, I will change the name of the powerful fertilizer to the special effect fertilizer!" Du Fan's eyes lit up, and the look of anticipation was extremely intense.

"You can get some monster feces in advance, and after it ferments, the first-level ripening powder should also be almost studied, and then you can directly try to prepare special fertilizers." ”

Du Fan groaned for a while, and felt that there was no problem, so he walked to the living room and pressed the yellow palm print.

About an hour later, there was a controversy outside the Du Fan Courtyard.

"Ding Quan, let me tell you about that incident in vain, you are actually here to fight with me now!" a young man's voice, with anger, almost roared, this person was none other than the inner gate handyman who had come once, Fan Xin.

"Fan Xin, you can't say that, it's clear that I received Elder Du's task first!" said another young man, not to be outdone.

"Nonsense, don't think I don't know, you've been guarding Elder Du's quest card since I told you about that. Fan Xin looked angry.

"Hmph, the sect is not specified, which elder's task card is in charge, and whoever receives it first!" Ding Quan snorted coldly.

"What are you arguing about?" The gate of the courtyard slowly opened, and Du Fan's figure appeared there, frowning slightly.

"Elder Du, I'll pick up your quest card first!"

"He's talking nonsense, it's obvious that I took it first, Elder Du Mingcha!"

The two of them were arguing again, and they were already blushing and their necks were thick, and they were a little bit tense, it seemed that if they were to fight for a while, it was really a matter of two words.

Du Fan frowned and listened on the side, and after a while, his mind turned slightly, and he understood what the two meant, and immediately coughed lightly, and said in a low voice: "Don't argue, you can both do this, you can quickly go to the Warcraft Park to get two baskets of feces for you!"

"What? Elder Du needs two boxes this time? Okay, the little one will go right away!"

Fan Xin was stunned for a moment when he heard this, then reacted, his face was happy, he bowed to Du Fan, and then turned to leave, and before leaving, he didn't forget to snort coldly at Ding Quan on the side.

Ding Quan didn't care either, and after saluting Du Fan, he also left.

Seeing this, Du Fan shook his head with a wry smile, did not close the gate, walked straight to the medicine field, and used the barbaric technique plus the power of a power talisman to blast open it again on the basis of the original dung pit.

Du Fan did not return to the attic cultivation room, but walked to a pavilion, sat there cross-legged, took a drop of Qi refining essential oil, and began to cultivate.

After about an hour, Fan Xin and Ding Quan each came back with a basket of demonic beast feces, and looking at the expressions of the two of them, they still looked a little uneasy.

Du Fan didn't say anything, and after giving the two of them a spirit stone, he sent them back.

Next, Du Fan naturally filled two baskets of feces into the pit and buried them.

......

After half a cup of tea, Du Fan returned to the cultivation room, after these days of intermittent cultivation, now his cultivation seems to have reached the peak of the second layer of the Qi refining period, but he can try to break through.

Du Fan's eyes flashed, and he actually took two drops of Qi Refining Essential Oil in one mouth, then closed his eyes, and began to operate the Water Refining Dafa, intending to refine the Qi Refining Essential Oil in his body, and then use the majestic medicinal power to break through his cultivation in one fell swoop.

An hour later, Du Fan's face was a little ugly, obviously a failure.

However, he was not discouraged, and after a little pranayama, he took two drops of Qi refining essential oil again......

Three days later, Du Fan, who was closing his eyes, only felt that his mind exploded, as if it had exploded, and there was a sense of sharp pain for a moment.

But then, the body entered a wonderful state, itchy, very comfortable......

Du Fan was overjoyed in his heart, and after looking inward, he found that both his divine sense and the mana in his body had faintly increased a lot, and even the strength of his physical body seemed to have increased.

At the same time, some dirt also slowly came out of the pores of the sweat on its body, soaking the clothes.

Du Fan exhaled lightly, he understood that he had finally broken through and entered the stable period of the third layer of the Qi Refining Period.

He endured the discomfort of being riddled with dirt, took two drops of Qi refining essential oil, and ran the Water Diversion Dafa again.

It wasn't until two hours later that Du Fan was sure that the realm of the third layer of the Qi Refining Period had completely stabilized, and then he stood up with a twinkle in his eyes, ran to the edge of the spiritual pond in one go, and jumped in without saying a word.

After half a pillar of incense, Du Fan crawled out of the spiritual pond, changed into clean clothes, and walked to the laboratory after doing this.

Standing in front of a set of instruments, Du Fan picked up a vessel containing ripening powder in his hand, and after a while, shook his head.

"These ripening powders can refine sixty years of spiritual herbs, but they are still a little worse than I expected, and I have to continue experimenting!"

Du Fan found that in addition to the temperature of the fire, he also needed to have the skills of the technique, the rules of which were difficult to grasp, and he had to try little by little, and when he finished deploying the instrument again, he walked into the cultivation room.

Du Fan was quite busy during this time, the cultivation of the "Spirit Devouring Technique", the improvement of cultivation, and the research of ripening powder, everything could not be delayed, and he had to take care of the spiritual flowers and spiritual grass in the medicine field, and he couldn't wait to divide himself in two.

......

Half a month later, in the cultivation room, Du Fan slowly opened his eyes.

"The stable period of the three layers of the Qi Refining Period has finally passed, and starting tomorrow, you can continue to take the Qi Refining Essential Oil, refine it, and then improve your cultivation. ”

"However, the current Qi Refining Essential Oil is no longer significant for me, but the next stage of the pill can only be taken when the cultivation reaches the fifth layer of the Qi Refining Stage, in fact, ...... With my current cultivation, it's okay, but after I get to the fourth layer, it's going to be troublesome. ”

Du Fan groaned, a little headache, but he could only take one step at a time, his qualifications were poor, and there was no way.

"It's the Spirit Devouring Technique, I have already comprehended the ninth layer thoroughly, and then I can directly cultivate this layer, I believe that within half a month, I can practice the ninth layer to the fullest, so that only the last layer is left. ”

Du Fan exhaled lightly, and his face finally got better.

"Is Elder Du here?"

At this moment, a crisp woman's voice came in.

"Is that her?" Du Fan's expression suddenly moved, and he got up and walked out.

"It turned out to be Miss Su, I don't know if there is something urgent to find her suddenly?" Du Fan pushed open the door and said first with a smile on his face.

Outside the gate, it was Su Rong, a girl in a light yellow shirt, who was also a disciple of Elder Peony, and to some extent, there was a subtle relationship between the two of them.

"Elder Du, the sect master is summoning some elders in the sect to go to the main hall to discuss matters, this is the regular meeting of the elders in the sect once every six months, the master ordered me to come and inform Elder Du, if you are interested, you can also go to the main hall to participate. ”

After Su Rong bowed, she said like this.

"Regular meeting, Miss Su, does Elder Peony mean to force it to go down?" Du Fan was stunned when he heard this, and then asked.