So one day after the fire broke out in the farm, Wu Cailuan was placed in a room on the side of the central hall of the official house. Zhihui led people to clean it up, laying an elegant and clean incense furnace, screen, bed, crescent stool, and bookcases, and added bookshelf and pen and ink. Cailuan refiner stayed here, serving pastries, tea, vegetables and fruits four times a day, and began to write the so-called "Taishang Sanqing Halal Alchemy Secret Method".

Gao Yue also visited her from time to time, first to inspect and prevent her from being lazy; secondly, he kept asking her where she collected Yin and Yang pills.

"Sir, where did you get saltpeter?"

"There are in the mountains of Xingyuan Prefecture. When the people saw the mountain fields, the water shade and the silhouette had gray frosted soil, they collected it, showered it with a bucket, and sold it to us."

“Is there a large area of ​​saltpeter ore?”

"Yes, if our group of people have a high demand for alchemy, they will let merchants take care of them from several places."

“Which places?”

"There are Zhelian Mountains in Shu, Fengzhou and Yangzhou, Junzhou on the east road of Shannan, and Xiasuiyinzhou on the Baiyu Mountain. Of course, the "salty soil" in Longyou and Dangzhou are the most abundant, and the saltpeter in Wudu and Erdang are the most famous."

Gao Yue nodded. There was no need to worry about the production of saltpeter in ancient China. Then he asked Wu Cailuan again, what about "Shiliuhuang"?

The stone flow yellow means sulfur.

Wu Cailuan told Gao Yue that the alchemist’s favorite thing is from Mount Qimi, Gaochang, the Western Regions, and is called “pure sulfur.”

This pure sulfur is actually the natural sulfur around the volcano, but Helong is now captured by Xifan. Whether it is an alchemist or a workshop in Tang, it is impossible for him to travel thousands of miles to Gaochang to get sulfur.

However, this is not a problem. Although natural sulfur cannot be obtained for the time being, there are many "pebbles" widely hidden in the land of the Celestial Empire. This kind of pebbles is also called Nirvana. In fact, most of them are hidden in the coal seam, with yellow-green crystals and crispy texture. In fact, it is what is now called pyrite. Craftsmen or alchemists just need to build a furnace, build coal, and burn this stone to get something called "alum". It is widely used for dyeing fabrics (can also be used as medicine). While burning soap alum, the golden gas on the top of the furnace condenses. What people call "alum stone liquid" is actually sulfur.

Wu Cailuan understands this, and now Gao Yue also understands it, but what they don’t know is the equation of burning soap and alum with pebbles and artificially producing sulfur, which is actually:

fes2+2o2=feso4+s↑(Haha, Sula I copied it)

"That is to say, saltpeter is everywhere in this area, while sulfur complements pebbles, and pebbles are in the coal seam... So does that mean that a large amount of coal can be mined?" After the military use of cotton cloth and "elixir", another bold idea of ​​innovation emerged in Gao Yue's mind.

Sure enough, technology is what leads to one link.

While Gao Yue was talking to Cai Luan Refiner, the military entourage and the Ya soldiers came out of the door and reported:

Xiao Yi, a Taoist priest from Zhongnan Mountain, surrendered to the famous assassin and asked to meet with the Dayin.

"Hey, Brother Jingzhi, why should I be so disgusted?" Gao Yue walked out the door himself, leading the smiling Xiao Yi into the central hall of the official house.

Then Gao Yue couldn't wait and there was no twists and turns, so he told Xiao Yi and Pan about the plan to grow cotton.

At this time, Gao Yue gave a piece of woven cotton cloth to Xiao Yi.

Xiao Yi touched it, then immediately twisted his beard, his eyes lit up.

"Okay, Brother Jingzhi's eyes became sharper, which shows that there is indeed a great business opportunity!" Gao Yue thought to himself.

Sure enough, Xiao Yi asked Gao Yue about the details of the four treasures of grass cotton weaving. Then he smiled and said, "If you sell silk and fine linen, although the price is expensive and the profit seems to be quite high at first glance, the users are limited and the cost is not low. And if this cotton cloth is really like Yisong said, it will definitely become a commoner and a favorite thing for military soldiers. For fifty cents to buy coarse silk cloth and good-quality cotton cloth, I believe that people with normal intelligence will know it. Yisong's move is deeply the essence of the businessman's "small profits but quick turnover."

Seeing that the situation was natural, Gao Yue begged Xiao Yi to temporarily surrender and hire him as the supervisor of Xingyuan Mansion Cotton Clothing to coordinate the planting, spinning and marketing of this product.

Xiao Yi agreed with pleasure, and then he said to Gao Yue: "Yi Song, I will give you another good news. My friend Wang Zifu officially agreed to send you excellent tea tree seedlings and related agricultural books!"

"How could Han Huan agree?" Gao Yue was surprised and happy, hurriedly pressed Xiao Yi's hand and asked.

Because he understood that the tea garden in Xuanshe area is now Han Huan's "money tree". He had wanted to hire Prince Fu to come and let Han Huan know. He immediately gave Prince Fu "customed" to the Ya Bingyuan of Zhenhai Military Office. In fact, it was actually a disguised house arrest. After that, Han Huan wrote a letter to Gao Yue to protest the matter without any hesitation, and the implication was "young man, you can buy tea from my Xuanrunfang Town and resell it to the northwest. You can tap from it, but don't want to be greedy for the fundamentals!"

Gao Yue, who was once helpless, asked Wei Gao and Du Huangshang, who had just become the governor of East and West Erchuan, for help. But Wei Gao said that the tea in Shu was sold in the southwest Qiang and Hu, and the barbarians were not enough. I also asked the tea merchants in Shu, who wanted to give you "technical assistance" in Xingyuan - but the tea merchants all regarded this technique as "the fundamental value of profit" and were unwilling to reveal it at all. I have no choice.

So at this time, the prince did not break through the obstacles and sent tea seedlings and books for growing tea, which was really a timely help!

He was curious about how Prince Fu bypassed Han Huan.

"Brother Yu used his little tricks. No matter how powerful Han Huan is, he is not a solid piece of Xuanrun... He used a trick to use a trick, but on the surface it was rice, but in fact it was a tea tree seedling. He carried it directly on a thousand-hu boat, first on the Bian River, then on the Pipagou, then on Rushui and Yingshui, and then on the Feishui through Jiminggang, then on Juchaohu and then hired a boat into the Yangtze River, then passed Ezhou, Xiangyang, and then went to Hanchuan to Xingyuan! For this reason, I spent all the remaining possessions after the Changwushi transformed him into footwork and money." Xiao Yi's words moved Gao Yue so much that he was so moved that he was so moved.

Gao Yue immediately vowed to the gods and Buddhas that the tea supervisor in Xingyuan Mansion was also Xiao Yi's responsibility.

Xiao Yi has free lease rights for all the residences in the mansion city. As long as tea and cotton can bring benefits to our Xingyuan military and civilians.

At this moment, Xiao Yi laughed and said, "You and my brother, don't have to be separated."

"Jinqiang Xingyuan Mansion!" Gao Yue immediately raised his hand and shouted.

"Getting strong white grass army!" Xiao Yi also responded with a smile.

But soon, just like in Huaizhenfang's cottage, he grabbed Gao Yue's hand with a serious expression:
Chapter completed!