Although the wall plan is said to be a wall, Shen Nong wants to shape it into a city wall as strong as a city wall, because ordinary wooden walls are still very fragile for warriors like Chi and Xiong Scythe, if they are willing, they can knock the wall down with just a few punches, and the defense effect will still be zero.

But with the current stone reserves of the Huangqiu tribe, it is impossible to build a stone wall, and in the final analysis, wood must be considered.

So Shen Nong adopted a very crazy method, that is, directly take the trees to drive piles, so that the big trees are inserted side by side, forming a natural defense line for the Huangqiu tribe.

Leading the four people in the warehouse, Shen Nong picked up a bone spear and began to draw up in the area near the grassland of the Huangqiu tribe, only to see him walk 60 steps towards the south, then stand still and then walk 60 steps towards the east, then 60 steps towards the north, and finally turn around and walk back to the Huangqiu tribe towards the west.

In this way, Shen Nong used a bone spear to carve out a plot of about 900 square meters of planned land near the Huangqiu tribe.

Of course, because there is no relationship between the use of accurate measurement tools, the shape of this 900-square-meter square must be irregular, but it doesn't matter, Shen Nong has no obsessive-compulsive disorder, so he doesn't care about these small problems.

After Shen Nong stopped on the grass, he pointed to the indentation on the ground that he had drawn with a bone spear and said, "You take some people and take tools to dig up all the lines I just drawn." ”

"What are you going to dig into?" asked Beibang, the eldest of the four.

"Four steps wide, ten steps deep. Shen Nong replied that he had taught Cang and others the meaning of 'length, width, height and depth' before, so he was not worried that they would not understand.

When the four people in the warehouse heard Shen Nong say that they wanted to dig ten steps deep, their faces suddenly changed, ten steps deep, that is converted to five meters, they can dig at this depth, but it is difficult for those who go down to come up.

Moreover, Shen Nong drew a very long line just now, if it had to be dug into a scale of four steps wide and ten steps deep, it would be an extremely large amount of work.

Seeing the expressions of Cang and the others, Shen Nong said clearly: " I know what you're thinking, that's right, this project is far more difficult than the last ditch, and the time it will take is also difficult to calculate, but as long as the wall is built, then it will be difficult for any enemy to enter our tribe again, this is a matter for future generations, you start to do it now, then your children and children's children can benefit, if you don't do it, then enemies like the Blackstone tribe will continue to appear, our people will be killed by them, our food will be robbed by them, do you still want to see this happen in the future？”

"It's not that we don't want to do it. Cang scratched his head and said, "Ten steps is too deep, and it will be very inconvenient for us to dig it with our clansmen." ”

"So you're worried about this......" Shen Nong smiled: "It's okay, I'll make you a few soft ladders later." ”

"Soft ladder?" the four of them looked at each other puzzled, and said very puzzled.

The longer they stayed with Shen Nong, the more they felt that they knew too little, and sometimes Shen Nong's mouth would often say words that they didn't know at all, which couldn't help but make the big guy feel very distressed.

"It's okay, you guys hurry up and take your people to dig the earth, and try to dig all the ditches as soon as possible. Shen Nong said.

Seeing that Shen Nong didn't want to explain to him what the soft ladder meant, the four of them scattered around to find the clansmen to work. For the people of the Huangqiu tribe, doing hard work is not a thing that will make people feel disgusted and disgusted, and the men and women who reside in the tribe are extremely fond of helping to work and do things, like the last time the ditch was dug by the whole tribe of Huangqiu.

Why do the people of Huangqiu like to do hard work so much?

To put it bluntly, it's still idle.

Because in the Huangqiu tribe, only the four tasks of hunting wild beasts, collecting berries, going out to fetch water, and carrying the stove to make a fire can be done every day, and the members of the hunting team are responsible for hunting wild beasts, and the members of the collection team are responsible for collecting berries.

But since the ditch was opened, the work of going out to fetch water has become the history of the Huangqiu tribe, and there are more and more people who have nothing to do, such as women and craftsmen can also help make animal skin clothes, make weapons such as stone spears and bone spears, while others spend most of their days in a state of idleness.

In this case, naturally there are many clansmen who want to join the collection team to help collect berries and vegetables together, but Xiong Sickle did not agree, because the Huangqiu tribe must leave some people to garrison in the tribe, otherwise if any beasts or enemies come, the ancestral land of the Huangqiu tribe will not be occupied in an instant, and they will not even have the ability to resist.

After a long time, the men who stayed in the tribe naturally felt very bored, and the coolie work project proposed by Shen Nong undoubtedly became their savior at this time.

To use a bone-pecking phrase to describe it: "As long as you have a job to do, you can do anything." ”

Didn't go to the four of them to dig a ditch, Shen Nong walked directly into the big cave where the smoke had already dissipated, since the clansmen moved to the wooden house, this big cave has become a place for the Huangqiu tribe to store resources, meat, berries, vegetables, medicinal herbs, wood, stones, animal skins, these things are all placed in the big cave.

"Wu!"

Seeing Shen Nong walking in from outside the cave, the two clansmen who were in charge of taking care of the resources immediately got up from the ground and said to Shen Nong respectfully.

"Give me some tendons and some wood. ”

"Okay. ”

After a while, Shen Nong's arms had an extra bundle of animal tendons and more than a dozen logs that were only the length of his forearm.

"Wu, is this enough?"

"Enough. Shen Nong nodded, and at the same time stopped the other party's move to continue to get wood for himself.

"Get me another bone and a stone, the bone is shorter, and the stone is smaller. ”

"Okay. The clansman bent over and tossed on the ground, and finally took a white-bearded ape's calf bone and a fist-sized stone and handed it to Shen Nong.

Everything was ready, Shen Nong walked out of the cave directly with these materials, came to the grass outside the cave and sat down, and began to prepare for the production of the soft ladder.

"Tut, it's been a long time since I've used this craft, and I don't know if the technology is as good as it used to be. Shen Nong looked at the materials in his arms and smiled.