While Bai Begonia was pulling weeds, she was thinking about the ingredients of herbicides. Nitrophenol, chlorophenol, and aminomethyl derivatives are the main ingredients. At present, it is impossible to make this without raw materials, laboratories, and separators.
What comes out must be simplified.
So Bai Haitang thought of the most primitive herbicide, Bordeaux mixture. It was discovered by the French in the 1880s because of weeds and insects on grapes. Its main ingredients are copper sulfate, quicklime, and water, according to 1:1:1000
proportional adjustment.
Of these three things, only water is readily available. Copper sulfate has to be crystallized in a mine, while quicklime requires limestone to be found in a mine and calcined with fire to form quicklime.
The main task at the moment is to find the mine, but the surrounding plains are all crop fields. Working hidden in the crop fields, the brother-in-law and sister-in-law's attention is not on Bai Haitang.
Bai Haitang saw that it was wintersweet working in the field next door. Wintersweet was bending down to pull weeds alone and working this way. Haitang ran over quietly.
"Sister Haitang, you just gave birth to a baby, and they drove you to work in the fields?" Lamei wiped the sweat from Bai Haitang's face distressedly. At that moment, Bai Haitang was particularly moved, and she swore in her heart that if she became successful
If you go there, you will definitely bring wintersweet with you.
The sun at noon was particularly hot, and Wintersweet put her straw hat on Bai Begonia's head.
"Lamei, you are so kind to me." Bai Haitang is a person who never makes promises easily, she only told herself silently in her heart.
"Come and eat something, my mother prepared it." Lamei took out her lunch. In the basket were two steamed buns, a stack of pickles, a pot of water, and two eggs. The eggs and Lamei let Bai Haitang eat them all.
It’s time for confinement meal.
"Lamei, do you know where there are mountains nearby? Mountains with many rocks." Bai Haitang asked.
"Shan? Sister Haitang, you can't think too hard, right?" Lamei was a little anxious, thinking that Bai Haitang was seeking suicide by looking for Shan.
"Don't worry, it won't happen. I just want to find something in the mountains." Bai Haitang said.
"I'll take you there. There is one just around the corner. The mountains are full of rocks and there is no grass growing. Sometimes there are will-o'-the-wisps inside at night. It's quite scary..." Lamei said.
Wintersweet led Bai Haitang, head lowered and waist bent, quietly walking through the fields of crops, turning a few corners, and finally saw this barren mountain.
A smell rushed towards me. Bai Haitang looked at the color of the rock and felt a little excited. It was really a treasure. This mine contains a variety of minerals, which means that it can extract a variety of chemical elements for my use.
"Sister Haitang, look, there is a hole there, and there is a will-o'-the-wisp at night. No one rushes to go, so let's go back." Lamei was a little scared and pulled on the corner of Haitang's clothes.
Bai Haitang knew very well that the so-called will-o'-wisp fire was phosphorus fire, but she couldn't explain this to Lamei clearly.
"Don't be afraid, I'm here." Bai Haitang insisted on going in, but Lamei was worried and had no choice but to risk her life and accompany her sisters to follow.
Bai Haitang walked inside. The further she walked, the narrower the cave entrance became. She could smell the smell of various minerals, which was the smell that made her excited.
Suddenly Bai Haitang took a few steps back, stopped, and shoveled a stone next to the shovel with a hoe. The gravel fell away, revealing sky-blue crystals in clusters. The color was particularly beautiful and the taste was particularly strong.