To solve the problem of transportation, it is a large-scale transportation of materials, everyone mobilized, go down the mountain to collect all the materials that can be collected, including those villages that have been broken by barbarians, if there is still half a wall left in the village, then dismantle the bricks and move them back, if there is still a bed board left, the bed board must also be moved back.

Hundreds of people all scattered out, searching for anything they could find, like hamsters.

There are more and more materials on the mountain, pots and pans, clothes and bedding, building materials, as long as they can be used, even mud will not be spared.

There happened to be an open-pit coal at the foot of the mountain, and Liu Jun had several brick kilns and coking kilns built next to it, and the burned bricks and coke were moved to the mountain.

In the process of digging coal, a large amount of crushed coal and pulverized coal inevitably appear, Liu Jun designed a coal press, crushed coal, added loess and mud ball, pressed out honeycomb coal, not only used the waste produced by coal mining, but also solved the problem of cooking and heating on the mountain in one fell swoop.

A large number of bricks and tiles are fired, coupled with primitive cement and bamboo bars, the problem of insufficient building materials on the mountain has also been solved, and even large beams and columns are not needed to build large-scale single buildings, which makes full use of space and saves a lot of logs and handling work.

Don't underestimate this change, when there were no beams and pillars in the past, the people on the mountain lived in a shack, dig a nest down, lay a grass roof on it, low and dark and damp, etc., there are many shortcomings, and the proportion of people on the mountain who suffer from rheumatism, skin diseases, gynecological diseases is very high.

Can you imagine that almost every adult woman smells of stinky dead fish?

The second is a great waste of building space, like spreading a pie, the grass hut extends down step by step, one in the east and one in the west, even if it is full, there are not many people.

This is also why Li Maojin said that when the men in their prime are dead, there is no way to develop the cottage, because the beams and pillars can't be moved, and there are not many people who can live in the way of spreading the pie.

The bamboo-reinforced concrete method, both in terms of construction period and difficulty, is far superior to the tiled houses with wooden beams and columns, and in the next period of time, the buildings on the mountain will move in the direction of large bungalows.

Because it is a mountainous area, the flat land area is too small, so Liu Jun chose a design of borrowing flat land from neighbors on the high slopes of the loess in the great northwest of the previous century. The roof of the neighbor's building is the yard of his own house, and the roof of his house is the threshing floor of another house.

This design can add a large number of planes out of thin air, whether it is drying grain or daily activities, it can be used. As a result, the mountain will more than double the usable area out of thin air, and everyone will have much more space to live and move around than it is now.

Of course, this is the vision, and to achieve this effect, everyone will need to work harder.

But the Chinese people are the kind of people who are willing to redouble their efforts for future happiness, and when Liu Jun described this vision to everyone at the plenary meeting, everyone screamed excitedly and wanted to start working immediately.

After solving the problems of food, transportation, housing, etc., Liu Jun also needs to solve the problems of safety, drinking water, prestige and management.

But in practice, Liu Jun felt that it was much easier to deal with the small broken pottery kiln than when he first crossed over, because he now had a large number of people to use.

In terms of burning bricks, tiles and cement, Li Youwei is familiar with it, and even better than Liu Jun, and he can burn the bricks and cement himself.

And the construction side is even less troublesome, there are excellent masons on the mountain, and there are also villagers in Lijia Village. Every village has people who need to build houses, and every village cannot lack masons and stonemasons.

As long as you tell them the characteristics and design of the material, they can play much better than a half-person like Liu Jun.

And Liu Jun organized all the women, the elderly, and the children to dig up the potatoes on the southeast slope, because this slope is under the mountain, there is no protection, anyone can pick it, for the sake of safety, dig this side first.

The southwest slope is overhanging, so you can only go down from the top of the mountain, keep it as a grain reserve, and dig it again after a while.

As expected, there was no scientific management and sowing, and the potatoes grew at will, looking like they were growing all over the slope, but the yield was not high.

Of course, this 'not high' is based on the yield per mu of yam recognized by Liu Jun, under the condition of modern agricultural planting management, the production capacity of yam per mu reaches 5,000 catties, but this kind of yam-like potato is only 500 catties, less than one-tenth.

However, relative to the grain output, 500 catties is already appalling, Wuhu Mountain is located in the north, under intensive cultivation, the yield of grain per mu in a single season is between one and two stones, not even half of the potato.

You know, the potato is grown on a sloping slope, and it is unmanaged, it grows freely, and it depends on rainfall for irrigation. That's the output of 500 catties, and I didn't believe it.

However, there is a big problem with wild potatoes, they are cooked and eaten directly without treatment, and they are easy to fart, and some people will be allergic, and severe cases will have rashes and even death, which may also be the reason why wild potatoes cannot be promoted and become a staple food.

But it doesn't matter, willow has a way to deal with it, first dry and then grind the powder, make it into vermicelli and then eat it is not easy to fart, if there are still people with allergies, then cut the pieces with alkaline water blisters, soak and wash and then dry, if you are still allergic, then you can only say goodbye to the potato.

Everything is progressing in an orderly manner, but no matter how busy it is, morning and evening classes will never stop, and the girls will have to work overtime.

After evening class this day, Liu Jun, who returned to his house, saw the purple and green books that had been waiting outside the door for a long time.

"Purple Childe." Liu Jun was slightly blessed.

Ziqingshu returned the salute: "I've seen Master Liu." ”

"Childe is polite, are you here to find me?" Liu Jun asked.

"Exactly, Liu is in charge, thanks to the rescue of the skillful hand, Qingshu's injuries have healed, it's time to leave." Ziqingshu said.

Liu Jun had already expected it, so during this period of time, he desperately summoned Zilong Zihu and others, and some things had to be done by them, soldiers with high martial arts.

"Congratulations to Zi Gongzi, you did not hesitate to risk your life for the country and the people, the people are very admired, it is a blessing for the people to be able to save you, and please take care of your health, continue to ask for your life for the people, and protect the peace of the party." Liu Jun arched his hand and said.

Zi Qingshu rubbed his nose and said with some embarrassment: "We don't have to talk to each other like this, in fact, you can call me Qingshu." ”

Liu Jun smiled slightly, didn't answer, just looked at Ziqingshu with a 'see through you' look.

Zi Qingshu's face flushed slightly, and he took a deep breath before he said in an open tone: "Qingshu is not married yet. ”