"Brother-in-law, brother-in-law, I don't want a gun, you must get me a gun." On the way back, Li Tai kept pestering Feng Daiwen for a gun.

"Hehe, this is impossible, if you want a gun, wait until you go back to Chang'an to ask your father for it." Feng Daiwen smiled and refused without hesitation.

"Alas!" Li Tai wailed, understanding that there was no hope, Feng Daiwen had always been the same, and Li Shimin would not allow this kind of sharp weapon to be used for play.

On the same day, Gaochang City and the people in the vicinity were frightened, because the thunder sounded on a sunny day for a long time.

After returning, Feng Daiwen discussed with Li Chunfeng to improve the new artillery.

Li Chunfeng proposed to wrap the iron beads with gunpowder, lengthen the lead, and explode after the copper warhead landed, and then proposed to pour gasoline, which could not only explode but also burn after landing.

These ideas made Feng Daiwen secretly frightened, and he didn't expect that just by opening a door, someone would immediately discover the world outside the door.

However, Feng Daiwen also put forward a suggestion, thinking that the barrel should be lengthened, and rifling should be used to shoot solid shells, and cylindrical shells can be made with rifling, and the rotation can be used to break the city.

It is also recommended to enlarge the barrel and thicken the wall of the tube to make the flowering shell larger, so that it can be filled with more gunpowder and iron beads to increase the power of the explosion.

The more they thought about it, the more excited they became, and immediately summoned the craftsmen to start work, made all the ideas, and experimented one by one to choose the best combination.

So the people near Gaochang City went from being surprised to being accustomed to it, but they just thought that this year's spring thunder came early, a bit too much, and it was strange, but it had no impact on life, so no one cared.

And Duan Zhixuan simply moved to the vicinity of the valley to station, training gunners and gunners, and striving to be proficient.

The rifling was perfectly made under the skillful hands of the craftsman, and the long-barreled single bullet wound was also made, using gunpowder to propulsion, producing rotation, and the conical bullet could penetrate the thin iron armor, but unlike the scattered bullets, it needed to be aimed in order to hit the target.

And the rifling production is troublesome, it needs to be handmade, so the production is slow, the solid cannonballs and bullets are made very quickly, and there is enough gunpowder, so the process is not slow, after all, it doesn't need too much, there are a few cannons in hand, which can push the countries of the Western Regions.

Duan Zhixuan was intoxicated with artillery, and he would make a record almost every day, and in a few days, he would send a letter back to Chang'an, of course, before that, it belonged to Feng Daiwen, and Li Chunfeng's recital had already been handed over.

Li Chunfeng is becoming more and more like a mechanical master, the city-breaking car is completed, on this basis, he designed a cart, there is no hydraulic pump, it is a machine, and the purpose of his production is to push the snow, push away the thick snow in the Western Regions, and clear a road.

But he found that the effect of using a cart to get snow was not ideal, and he designed a roller to compact the snow, but he was helpless, and after the snow was compacted, it became very smooth, and he still couldn't walk, and he was frustrated.

Feng told him that there were other uses for these machines, and that the best machines were used to build roads.

Blowing up rocks with gunpowder, pushing away rocks and dirt with carts, and then compacting the road rollers made it much easier to build roads.

When Li Chunfeng heard this, he seemed excited, and proposed to use machinery to build a road from Gaochang to Longyou Road, because this road is next door, grassland, and desert, which are not easy roads to walk, and horse-drawn carriages are not easy to pass.

But then I was very depressed, because next door, the desert was too windy and sandy, and it would not take long to build the road, and it would be flooded by the wind and sand.

Feng Daiwen told him that he could only plant trees to protect him from the wind and sand.

Li Chunfeng immediately took people to check the terrain and inquire about the situation, and only came back half a month later.

According to his method, it is to transport soil, plant thorns, plant them one by one, collect enough thorns first, and then plant them together, take advantage of the time when the wind and sand are the smallest, and spend several years to make the thorns spread all over the road for dozens of miles, and then build the road in the open space left in advance.

Feng Daiwen took him to see the method he had found during this time, which made Li Chunfeng's eyes light up, and he felt that this was the best way.

It turned out that Feng Daiwen had people collect many drought-tolerant plants such as small poplars, cypresses, and pines, fill them with soil in large clay pots, and then plant them, only to move them into the desert, next door, and bury them in the sand.

The clay pot is designed with a wide opening, which can catch a lot of rainwater, which should be enough for the needs of plants, and if the thorns he brought back are combined, the two will definitely turn the desert into a green space.

"Grandpa's method is simply great, you just need to arrange for someone to start planting a lot outside the desert, near the oasis, and then move in." Li Chunfeng high-fived and exclaimed.

"The hero sees the same thing, I also think so, when the desert becomes an oasis, although it will take decades, it can add a place to our Tang Dynasty, and after more than ten years, we can graze and farm." Feng Daiwen said proudly.

"Grandpa Dade, let the desert become an oasis, countless people will benefit in the future, and the Central Plains to the Western Regions will become a smooth road." Li Chun made a Taoist salute and sighed.

"This is also due to most of the young eunuch Li, so don't praise it, I have asked people to collect more drought-tolerant plants, try to plant them, and try to plant soybeans on the edge of the desert, using plant decay to increase the base fertilizer." Feng Daiwen explained implicitly.

"The good way is that it requires a lot of manpower and a long time." Li Chunfeng blurted out in admiration.

"Starting from the edge of the desert, the water source of the oasis, gradually advancing, and slowly improving in the future, this is not a day's work, as long as you make a good start, leave the way for the latecomers, and leave the people to do it slowly." Feng Daiwen nodded indifferently and said.

…………

On March 20 of the seventh year of Zhenguan, Qibi He Li led 30,000 Turkic warriors to report.

On March 28, Li Ji led 20,000 Turkic warriors and 50,000 Japanese slave death squads to come.

"I didn't expect the Holy Lord to let the British Duke go on an expedition, don't you look down on these small countries in the Western Regions too much." Feng Daiwen led the crowd to greet him and said respectfully, he has always admired Li Jing and Li Ji, the two of them are not only powerful in military strategy, they are officials, they are also very visionary, and they have always been very good to themselves, so they are very respectful.

"Haha, the old man came here to be your deputy for Weiguo, and to sit in the rear for you, so as not to be distracted." Li Ji said with a hearty smile, the two have cooperated in Wadao, and they still have a very tacit understanding, and Li Ji also values Feng Daiwen very much, he has always thought that he is the best commander of the next generation, and he is also a brave general, which is very rare, many people can only be generals, but not handsome.

(End of chapter)