"If the king is not secret, he will lose his minister, if he is not secret, he will lose his body, and if he is not secret, he will be harmed. It is a gentleman's prudence and not out. I also saw the teacher's so-called 'firecracker' just now, this kind of power is comparable to the anger of the gods! How can such a big thing be sloppy! The disciple has thought about it, if the disciple accidentally leaks the secret, please don't tolerate it, and those who know about it will be removed together with the disciple! Zhuge Liang has always been known for his cautious actions, and now his expression is very serious......

"Disciple has thought about it!" Pang Tong didn't say much!

"Good! From now on, I will pass on your basic chemistry ......"

……

According to the planning of Kong Ming and Pang Tong, coupled with the requirements of Wang Zhirong, and later the opinions and suggestions of Xu Shu and others, the fortifications on the mountain finally became a very complex defense project......

"Teacher, this building is built without wood at all, but it is not hewn from stone as a whole, and many places are obviously artificially constructed, but they can be as solid as a rock...... Looking at the technique, it should be a kind of mud smoothing...... What kind of soil is it, and when it dries, it is as hard as a rock? This thing is used to build a city, and it will be an iron city! ”

"Teacher, the sharpness of kitchen knives is only seen in Liang's life! I have appreciated some swords, compared to the kitchen knives here, far inferior! ”

"Teacher, the wine here will burn at a moment, the flames will burn, and it can be used for fire attack......"

"Teacher, if instant noodles are to be used as military rations......

"Teacher, a sweet potato or potato can be full, you say that a small piece can grow ten catties, if you plant all over the world, there is no hunger worries......"

I have to admire that Kong Ming has a meticulous observation ability, and he can especially discover the true value of some things in this era! He is far less enthusiastic about glass bottles than others, but he has spoken more than once about the economic and military value of cement, steel, alcohol, instant noodles, etc......

Excellent people are good at creating, and the foundation of creation lies in observation and association!

This name of the ages seems to be really not in vain......

Pang Tong's talent mainly lies in discussing all kinds of conspiracies and conspiracies, grasping people's hearts, as long as he is not in a hurry, he analyzes the historical war examples, the situation in the world, and discusses the heroes of the world, and he also has some insightful opinions......

"It is better to use the soil from which the houses here are built, and build an outer city outside, which will be impregnable......

When Kong Ming was asking Wang Zhirong for advice on cement, Pang Tong came over and said this......

"It's easy to say, it's not that hard! However, limestone and clay are the main raw materials, which are crushed, batched, and ground to make raw meal, and then fed into the kiln to calcine the mature material, and then the clinker is finely ground with an appropriate amount of gypsum......

But it's hard to say! At present, it is too labor-intensive to manually quarry, crush, and grind, and if it is calcined now, charcoal should be used, which is very expensive to burn...... The cost of labor plus the cost of fuel is more expensive to burn than gold! Forget it!

When there is an opportunity in the future, we will go to the north to quarry coal, first make steel, and if there is more steel, we will get hydraulic or steam-powered crushing and grinding equipment, and calcine the raw meal with coal, so that the cost will be greatly reduced, and it will be meaningful to burn it......"

Wang Zhirong found that the current era is really too backward, most of the buildings are only civil structures, there are very few brick and stone structures, and the output of lime is extremely low, let alone burning cement...... Most of the manpower is shaved and eaten in the fields, and the surplus food that can be produced is not much, which cannot support a large number of idlers for other work...... In addition, it is now a chaotic time, the soldiers are in chaos, and the peasants rebel with the Yellow Turban Army and fight with the Haoqiang, which makes the miasma and food even more scarce......

Therefore, if the food problem is not solved, there will be no idlers to do other things, and everything will be tied up by manpower and cannot be carried out......

Growing food requires a relatively stable environment, seeds, land and manpower......

Wang Zhirong feels that a large number of sweet potatoes and potatoes must be bred now, and potatoes have too much precipitation in the south, which is not suitable for planting, but the seeds must be bred from generation to generation for later use; Sweet potatoes are extremely adaptable, they like temperature and are afraid of cold, especially suitable for planting in the south, and this thing breeds very fast, not only can be propagated with roots, but also can be bred with stem and leaf cuttings, and a large number of stems and leaves can be bred with a small number of roots, and many can be cultivated soon...... Moreover, this thing is edible in its entirety, and with a small amount of grain, it can solve the problem of eating......

When Wang Zhirong told the characteristics of this crop, Zhuge Liang, Pang Tong and others looked at Wang Zhirong with the same eyes as worshiping gods!

"Teacher, where did this thing come from, such a divine thing, why didn't we promote planting early?" Pang Tong looked at the red rod in front of him, and regretted that he had already roasted a belly! He felt that he had eaten 100 million!

"This thing was brought by a senior brother of mine, who led people across thousands of miles of oceans and brought it from a distant continent! Including the white potatoes, and the peppers in the self-heating hot pot, etc., are all seeds brought from that continent...... It's a pity that after my senior brother came back, he only bred for three or four generations before he died......

I'm the only one left in the division now, there are a lot of things, I can't do it, now it's okay, you're here, let's do it together......"

Kong Ming and Pang Tong saw the teacher's grief, and they didn't dare to ask what kind of disaster the teacher had suffered, and why so many excellent senior brothers were all gone......

"I've opened up a little bit of land and planted some of this thing, and now it's growing...... I'll show you! ”

Wang Zhirong took Kong Ming, Pang Tonghe and prepared gifts, and the disciples who came up the mountain one after another went to the field, taught them to know sweet potato seedlings and potato seedlings, and told them that the potato seedlings should not move, which part of the sweet potato seedlings can be cut, and then how to cut them into the soil...... This is actually not difficult at all, the disciples will learn it, and this matter is finally handed over to Ma Liang to be responsible, and Cui Zhouping supervises it......

The land of Jingzhou under the mountain is now full of refugees, the north is fighting hard, many people have fled to Jingzhou, Jiangnan and Shu, as long as there is a bite to eat, they are willing to do anything......

Jingzhou Liu Biao's attitude is to try to take in and appease, after all, people are very important now, fighting wars and growing grain all depend on people, and if a place loses people, everything will be gone!

However, Liu Biao's Jingzhou government still strictly monitored the displaced people, and they were not allowed to gather with the local heroes at will, and they were only allowed to accept the grain allocated by the government, and cultivate the land according to the scope designated by the government......

Fortunately, the three old men were still a little thin-faced, and after some maneuvering, they dragged their families and brought more than 1,000 homeless people up the mountain......

Now, with the addition of the Huang family, the Pang family, the Ma family and other Zhuangke tribes and the homeless people who have taken in, there are more than 4,000 people on the mountain, and some people are specially cutting wood to build thatched huts, preparing to gradually settle everyone down...... Fortunately, it is now summer weather, and it is not raining, so it is okay to sleep for a while......