Survival male god

Chapter 105 Rotenone

"I thought of an old fishing method that would be perfect for these little fish."

"This method should be familiar to friends who live in rural areas."

Chen Jing stopped in front of a bush and reached out to pick off its leaves.

"This plant is called Huiye, also known as Shanqing. It is a semi-shrub of the Fabaceae Edamame genus, and it is very common in the wild."

"Like plants such as poison vine, spatholobus, bitter sandalwood, and pig's dung bean, its branches and leaves contain rotenone and degenin."

"Rotenone widely exists in plant roots and is often used to make pesticides. It has an inhibitory effect on many insects. Many people say that rotenone is highly toxic and will kill fish, but it is not harmful to humans. In fact, this is a misunderstanding."

"The principle of rotenone "poisoning" fish is that it reacts with dissolved oxygen in the water, which reduces the oxygen content of the water body in an area. The gills of the fish get this rotenone-containing water and cannot extract oxygen from it. They will become comatose or even die due to lack of oxygen."

"So the fish were not poisoned to death by rotenone, please remember."

"In addition, potatoes also contain rotenone, but the amount is very small, and many legumes have it. They take the same way to fight insects. This kind of thing is already engraved in their genetics."

"Creature, isn't it amazing?"

After popularizing the science, Chen Jing took a large handful of ash leaves that he had picked off to the stream, and then pounded them into a paste on the big rocks.

"The method of using rotenone medicinal fish is very simple. Just mash the stems and leaves of plants containing this ingredient and sprinkle them in the water. If there is a way to make the fluidity of the water worse, the effect will be better."

"I'm too lazy to do it. Originally, the pond wasn't big and there weren't many fish. This time, I'll catch them all!"

Soon, he threw the pounded ash leaf pulp into the water, and the green juice was soaked and spread to the entire pool with the water flow.

【"Does this method really work?"

"You can still catch fish like this, so you can raise your posture."

"What kind of posture, tell me upstairs!"

"I have indeed seen others do this before, but I have never used this method myself. Jingshen seems so confident, it should be effective."]

Chen Jing is more than confident, he has already picked stones by the stream, ready to make a stone axe, so that he can chop trees and make a fire to grill fish.

"When I was in school, my family was poor and I couldn't stand the hunger, so I often ran to the small river outside the town and used masang to catch fish. You mean a fishing rod? How can fishing be as simple and crude as medicinal fish."

"People are hungry, I really can't control so much!"

"Anyway, let's see, at most ten minutes, those fish will surface obediently, but if it's not an emergency, I still don't recommend you to use this method."

Chen Jing raised the stone in his hand and threw it hard on another rock. The former was immediately torn apart. He selected the part that naturally formed the cutting edge and polished it a little, and the stone ax head was made.

Even though it's rather crude and crude, it's no problem for chopping some twigs.

In addition, Chen Jing also picked a piece of gray-black gravel, and put it in front of the camera for everyone to watch as if offering a treasure.

"I just found such a stone after searching for a long time. You see, there are shell-like fractures on its broken edge. I think it is most likely a piece of flint."

Flint, commonly known as flint, is a siliceous bedrock that produces sparks when it collides with steel or ordinary stones, which is actually a chemical reaction.

Similar to the principle of magnesium rod ignition, the high temperature generated by friction and collision ignites the debris.

"It's still a little wet now. I wiped it dry and put it in my pocket to use my body heat to dry it out as soon as possible. Then, I'm going to get a branch to skewer the fish."

Chen Jing walked towards the foot of the mountain, climbed up the low slope, broke off a yellow Vitex branch, sharpened it, and then used a stone axe to peel off a section of bark from the top of a big tree, taking only half of it.

"This bit of bark, it doesn't do too much damage to the tree, but for me it's a big help."

After wrapping up the bark and putting it in the backpack, and picking up some dry wood as firewood, Chen Jing returned to the shore.

From a distance, he saw the water surface was white, and there happened to be eight small fish, all of which turned their bellies up.

"Haha, if you see it, I will say that this method will work!"

Chen Jing proudly said to the camera, then put down the things in his hand and the backpack, took off his shirt, and jumped straight into the pool.

Without any effort, he caught all the fish he saw earlier to the shore.

"The largest one is three fingers wide and palm long, and the small one is as big as a thumb. They are all white strips. This is a small fish that widely lives in freshwater lakes and rivers. It can be found all over the country. It is extremely adaptable to the environment."

"I heard that real fishermen don't like idiots. I don't know why. I'm different from them. Here I am..."

"It's a good fish if you can eat it. Let's go ashore to light a fire and prepare the first big meal of the day!"

Although the fish were small and not full of hair, but considering that the white strips were omnivorous and would eat almost anything, Chen Jing opened a hole in their stomachs and squeezed out all the internal organs.

Eight fish, exactly a string!

Inserting the branch into the soil, Chen Jing took out the piece of flint from his pocket, it had become quite dry.

"There is no doubt that fire is very important. It has a special and profound meaning to human beings. Every time I successfully light a fire in the wild, I am very pleased. It can not only dispel the cold and bring warmth, but also can be used to cook food and drive away wild animals, which greatly inspires the spiritual will of survivors."

"About the method and technique of making fire, the simplest way is to make fire by drilling wood. In the last issue, I taught you the "Chen's method of making fire by drilling wood" which I improved. Today I will show you an even more ancient method of making fire."

"Flint is an equally well-known method of making fire by drilling wood, but it requires you to be able to identify which stone is flint."

"And using flint to make fire, the requirements for tinder, that is, the firelighter, are also more stringent."

"It must be small enough and dry enough. Cotton, dandelion, certain plant seeds or velvet from stems are all acceptable."

"I'm using bird down feathers I found on a hillside earlier, so let's start the fire!"

"Be careful. Even the sweat in the palm of your hand may cause the stone or tinder to become wet, which will cause the fire to fail. I must not be nervous, take a deep breath..."

Adjusting the state and letting himself relax, Chen Jing carefully put the fluff ball in his pocket into the hay ball, then sat cross-legged on the ground, and the camera pointed at the two gravels in his hand.

One white and one black, the black is flint, and the white is ordinary quartz sandstone.

Chen Jing desperately hoped that these two black and white stones could collide with each other to create sparks of life.

"here we go……"

　Something is delayed today, work overtime

　　
　
(End of this chapter)