The rotation of the windmill drives the transmission gear, which in turn drives the transmission rod and drives the waterwheel on the side to rotate slightly.
"Squeak...squeak..."
As the waterwheel rotates slowly, the wooden bucket fixed on the outermost edge of the wheel spokes slowly scoops up the water, and rises slowly as the waterwheel rotates.
Then came the second bucket of water, the third bucket of water...
Soon, the bucket on the water truck reached the highest point, and then began to tilt at an angle, and then slowly poured the clear water in the bucket into the huge funnel on the side.
The poured water then flows down the funnel to the wooden water pipe.
"Crash..."
A steady stream of water flowed along the smooth inner wall of the water pipe for tens of meters, and finally flowed out of the water pipe at the highest point of a nearby area and flowed into the ditch dug by Su Xun yesterday.
The water continued to soak the ground and continued to move along the canal. Finally, after continuing to flow for more than ten meters, it flowed into a piece of farmland.
With the continuous flow of water into the farmland, the long-dried land was finally moisturized. The wheat seedlings that had withered and shrunk under the scorching sun soon stretched out, and the dry branches and leaves seemed to become plump instantly. .
After a while, the wheat seedlings in this farmland came to life again...
The scene in front of them made everyone present dumbfounded.
Whether it is the farmers who come to watch out of curiosity, or the carpenters who have been busy for two days to participate in the construction of wind-powered waterwheels.
Even the well-informed Su Xun, when he saw this incredible scene, the shock and joy on his face were beyond words.
"Great, great. With this device, the farmland in the highlands can be saved, and the vast tracts of wasteland in the west of the city can be cultivated!"
Su Xun's voice trembled slightly, and the corners of his eyes even moistened slightly when he spoke.
Perhaps apart from Li Ke, he was the only one present who understood better what the appearance of this wind-powered waterwheel meant.
This not only means that highland farmland can be easily irrigated, but also means that Kunyang will have more cultivated land and Li Ke will have greater initiative in the future.
In fact, both Li Ke and Su Xun knew very well that sooner or later they would have a life-and-death struggle with the people in the capital.
If you want to survive this desperate struggle, you can only strengthen yourself as soon as possible.
If he wants to enrich his strength, food has always been an unavoidable obstacle in front of Li Ke.
If you can't even eat, what can you do to fight with others?
But now, at least there is food. No matter how disparate the strength of the two sides is, Li Ke finally has a little bit of initiative.
In fact, Li Ke was thinking the same as Su Xun at this time.
However, in Li Ke's view, these are obviously not enough at the moment.
Although highland irrigation can be carried out and wasteland can be reclaimed, even if Su Xun said that another 5,000 acres of farmland can be reclaimed, the total of 8,000 acres of farmland will still not be able to satisfy the current population of more than 20,000 in Kunyang City. consumption.
At most, it will allow the people to live from a difficult life to a hand-to-mouth existence, which is still a long way from having enough to eat in the true sense.
What's more, if you want to gain a foothold in this crisis-ridden world, relying on a population of more than 20,000 is definitely not enough.
In the future, we will expand the city and continue to increase the population. At that time, food problems will become the primary issue restricting our development.
Therefore, I still have to continue to think of ways to deal with food!
Either increase food production or find high-yield crops, there is no other way.
Thinking of this, Li Ke turned his head to look at Su Xun again and asked, "Mr. Su, do you know what people are using to fertilize their farmland now?"
Su Xun was still immersed in the joy just now. When asked by Li Ke, he was stunned for a moment. After a moment, he slowly said: "As far as I know, most people nowadays use various kinds of manure to mix fertilizer, but After all, this thing is limited, and it seems that it can only be applied to a small part of the fields, while most of the fields still rely entirely on the strength of the soil."
Li Ke nodded, and then asked Su Xun to take him to the nearest dung dump.
Su Xun was slightly surprised, looked at the crowd who were still cheering by the canal, and whispered: "Your Highness, look here...and why are you going to that dung dump? It stinks to the sky, and you have a distinguished status. How can we go there?"
Li Ke just shook his head and smiled, and said: "Noble? Ha, I have been demoted to this bitter cold place, how can I be noble? Besides, can you get those people in the capital to let me go in exchange for being noble?"
In the end, Li Ke said word by word: "Only when you have unrivaled strength can you be called noble!"
Su Xun had a complicated expression when he heard this. After pondering for a moment, he nodded slightly and led Li Ke to walk in one direction.
Two moments later, in a dung dump.
Li Ke looked at the pile of dung in front of him, which was like a hill and covered with green weeds, with a complicated expression.
Then he walked up and dug some in the dirt with a wooden shovel. After taking a closer look, he couldn't help but shake his head.
"Is this what people use to fertilize their farmland?" Li Ke asked Su Xun.
Su Xun nodded, but Li Ke shook his head and said silently: "This method of fertilizing is wrong. Most of the organic matter in the manure has been lost. Even if you fertilize the farmland, the effect will be minimal."
Su Xun couldn't help but be confused after listening to what Li Ke said.
What organic matter? What method is wrong? Isn’t this how people have been composting for thousands of years?
He was about to ask, but then he heard Li Ke continue: "Is there any larger open space around Kunyang City?"
Su Xun nodded: "Yes, there is a threshing floor dozens of feet long in the east of the city."
"Okay, let's use this place." Li Ke said with a serious expression, "Give me the order. From now on, all dung in Kunyang City must be transported to the threshing floor in the east of the city."
After a pause, Li Ke seemed to have thought of something again, and continued to add: "In addition, inform the carpenters who built the waterwheel to build me a large number of large wooden barrels. The bigger the better."
Su Xun was slightly startled: "Your Highness, what do you want to make a barrel for?"
Li Ke smiled lightly and said mysteriously: "I want to use them to hold urine!"
"Ah? Pretending to urinate?" Su Xun was so surprised that his mouth opened, obviously he couldn't believe what Li Ke said.
But Li Ke was not joking, he really just wanted to pretend to be pissed!
Because he wants to make fertilizer!
The simplest and most effective way to increase crop yields is to use chemical fertilizers.
But if he wants to produce fertilizer, at least Li Ke must be able to create high-temperature and high-pressure containers. This is simply a fantasy for him who has difficulty manufacturing iron pipes of more than ten meters.
So Li Ke could only think of ways to use manure, but the amount of manure was too small after all. Li Ke had no choice but to collect urine.
After all, urine is also a good fertilizer raw material and contains a lot of nitrogen.
Ordinary urine can easily be turned into high-energy fertilizer through simple processing.
