The most effective means of fishing is electric fish, but this kind of mass destruction, Yang Hao can't use it even if he wants to.

The murderous method of electric fishing cannot be used, so we can only retreat to the most traditional fishing net fishing method.

Legend has it that the fishing net was invented by Fu Xi, but Yang Hao was skeptical about it, and everything was netted on one person, so it became a little unbelievable.

The Daqi tribe had fishing nets, but the fishing nets in this era were very small and could not have the effect of large-scale fishing.

It's something like a net, it's almost the same to catch a few fish at a time, the amount of fish you need is not much, and if you want a lot of fish to replenish, the efficiency of this kind of net is undoubtedly low.

Yang Hao decided to improve the fishing nets to suit his needs.

There are many ways to fish with fishing nets, such as opening nets, copying nets, nets, pond nets, casting nets, etc., and the most used in this era is to copy nets.

Among these kinds of fishing nets, Yang Hao decided to choose the net, although this kind of net is not the best, but for the current tribe, it should be regarded as the most effective.

The so-called net is that two people each hold a long pole, and the two long poles are stretched out on both sides of a huge net bag, which is used to catch fish and shrimp in the river. The net is equivalent to the giant size of the net, but the handle of the net is changed to two long rods, and the size of the net pocket is not comparable to the net.

The production technology of fishing nets is not lacking in the Daqi tribe, and it is only a matter of time before a net is completed, and now there are so many people in the tribe, Yang Hao is not worried about this.

Drawing the fishing net he designed on the pottery shard, Yang Hao handed it to Shao Yan and asked him to be in charge of the manual production.

Shao Yan didn't ask anything, his long experience told him that Yang Hao would not do meaningless things, even if the fishing net looked weird, he didn't ask anything, and retreated with the pottery shard.

Even if Yang Hao made such preparations, he still couldn't make him feel at ease, the harm of famine was much more serious than war, as long as he was careless, it would be a catastrophe, how could he be careless.

In order to get more food, Yang Hao frantically asked people to sweep all the things that could be eaten on the mountain, whether it was the fruit of the plant or the rhizome of the plant, and one thing was collected in the tribe.

The tribe of thousands of people, except for the army and those who were responsible for building the city wall and other tasks, all of them, regardless of men and women, old and young, were all driven to the mountain by Yang Hao and searched in a carpet manner.

Under such a frantic collection, the Great Qi tribe will bring all kinds of messy things every day.

Rhizomes, Yang Hao asked people to string them together and hang them to dry.

Except for some of the fruits that are left for consumption, the rest is cut into slices and also skewered to dry, ready to be made into dried fruits.

Eating too much acorn noodles is easy to get constipated, and these vitamin-rich dried fruits may be able to relieve it.

Whether it's useful or not, it's always right to have more.

Yang Hao didn't let people collect edible wild vegetables and leaves this time, these things, if not dealt with in time, are easy to rot.

If there is a large amount of salt, after salting, it can at least cope with the cold winter.

All the hope lies in that salt pan, if the salt pan has no mining value, everything Yang Hao is doing now is in vain.

Yang Hao anxiously waited for the return of the canal, the waiting process was very tormenting, and he was so upset that he couldn't even calm down and sit for a while.

It wasn't until three days later that the canal finally returned to the tribe.

Yang Hao, who got the news, hurriedly asked Qu to bring the sample over.

Inside the tattered sack was a black, strange-smelling piece of dirt.

It's just that there are some white crystals mixed in the soil, and Yang Hao knows that this may be salt.

This was a good sign, and Yang Hao breathed a sigh of relief in his heart.

"Chief, you can't eat this salt."

Qu was a little depressed, and ran all the way over, and carried back such a useless bag of dirt.

Yang Hao rubbed the dirt and said in a deep voice: "What do you know, this is a life-saving thing, others can't eat it, it doesn't mean that you can't eat it, okay, you have worked hard this time, I will allow you to rest for two days, no training, go down." ”

Hearing that there was no need to train, Qu suddenly came to his senses, and said with a smile: "Qu is ordered." ”

After saying that, he ran away without a trace.

Yang Hao shook his head and smiled when he saw this, and then focused his attention on the bag of dirt.

Time waits for no one, and after having a sample, Yang Hao immediately prepared for the test.

It is not difficult to separate salt from sediment, and anyone who has studied chemistry knows that the main component of salt is sodium chloride.

This thing is very soluble in water, as long as the sediment is separated with water, and after some treatment, Yang Hao feels that it should not be too difficult to get salt.

According to this line of thought, Yang Hao lit the pot on the fire, took out some sediment from the bag and poured it into the pot.

Yang Hao doesn't like to let others disturb him when he is doing experiments, and the others are a little stunned when they see Yang Hao cooking mud there alone, but people who are familiar with Yang Hao's temper, no one makes himself uncomfortable at this time.

The soldiers dispersed the onlookers, and Yang Hao's ears suddenly became much clearer.

As the water temperature rises, the white crystals in your sand begin to disappear.

Yang Hao stirred in the pot with a wooden stick for a while, and after the white crystals were completely invisible, he hurriedly took the pot and poured the contents on top of the clay pot covered with several layers of linen.

After pouring out all the sediment in the pot, rinse it on the burlap with clean water, remove the burlap, and a small amount of sediment still remains in the clay pot.

For this reason, Yang Hao could only take the trouble to filter repeatedly, and after more than a dozen times of filtration, only some turbid water remained in the clay pot.

Yang Hao knew that this water was a solution of table salt, and as for the composition of sodium chloride, it could only depend on the will of God.

Wash the pot with clean water, pour the liquid in the clay pot into the pot, and boil it on the fire.

The next thing is to wait.

As the liquid decreases a little, the white crystals attached to the pot can be seen in the place where there is no water.

Yang Hao was relieved when he saw this, and knew that this matter was almost done.

It wasn't until more than half an hour later, when the liquid in the pot was about to boil dry, that Yang Hao extinguished the fire, and if it was burning, it would be easy to burn these crystals.

Using a wooden stick to pluck some of the yellowed crystals in the pot onto the wide leaves, Yang Hao carefully took them out into the sun and exposed them to the sun.

A pot of sediment only gets less than half a bowl of crystals, and these crystals are not pure table salt, there are still a lot of impurities in them, and after processing it, there may be some leftovers.

Such a small amount of production proves that the salt content of the dry riverbed is not high, but Yang Hao is already satisfied, compared with desperately trying to rob, although this method is more troublesome, but it is very safe.

The other forces have good salt pans, and no one should pay too much attention to this riverbed, which gives him enough time and energy to get enough salt.