Hearing the sound coming from outside the door, Zhang Wulang was stunned for a moment, and then the expression on Xuanji's face was replaced by shock.
After a few seconds, he came to his senses and ran to open the door bolt. Then he saw a carriage parked outside his door, and on top of the carriage was a huge wooden barrel.
In front of the carriage were three government officials in official uniforms. All three of them covered their faces with scarves. Zhang Wulang could even see that the nostrils of these three people were blocked with something under their scarves.
At this moment, the leader of the three took out a book, searched for it for a while, and then said in a sharp voice: "Zhang Wulang, right? Your family also signed up for the government office yesterday, right?"
Zhang Wulang was stunned and nodded in confusion.
Then I heard the man say: "Then why are you still standing there, going to get urine?".
Obviously until now, Zhang Wulang is still in disbelief, and even completely confused.
He nodded subconsciously, then turned and walked towards the room, and came out a moment later carrying the chamber pot.
A government official took the chamber pot and poured the urine into a graduated container he had brought with him.
"Two liters!" The yamen servant said to the leading yamen servant, and the leading yamen servant hurriedly wrote two characters after Zhang Wulang's name on the book in his hand.
Then he took out two special small bamboo pieces from his arms and handed them to Zhang Wulang.
"Put your things away. This piece represents one liter of urine. As long as you save a hundred pieces, you can go to the government office to exchange for one liter of food."
After saying that, a government official poured the urine in the container into the wooden bucket on the carriage, and then the three of them led the horses away and walked towards another house in the alley.
Looking at the bamboo piece in his hand, Zhang Wulang obviously still hadn't come to his senses.
As soon as the three government officials left, Zhang Wulang's wife ran out of the house happily, and took the piece of bamboo from Zhang Wulang's hand with a smile, she was so excited.
"Hahaha, boss, what did I say yesterday? How could this majestic prince make fun of us ordinary people!"
"Yesterday you said it would be weird if a government official came to collect urine today. What else do you have to say now?"
"Now, I just hope that we can save 100 tablets soon. By then, we can go directly to the government office to exchange for food. Hahaha, how can there be such a good thing in the world..."
Looking at his wife who was chattering on the side, Zhang Wulang's expression seemed very complicated.
Could it be that I was wrong? Is that ridiculous prince really planning to exchange urine for food? But this is too outrageous.
But soon Zhang Wulang's expression calmed down again.
He glanced at his wife and said coldly: "Why are you happy? You haven't gotten the food yet. It's too early to be happy!"
On the other side, there is a threshing floor in the east of the city.
Looking at the more than 20 carriages filled with urine in front of him, Li Ke couldn't help but look forward to it in his eyes.
In fact, his method of fermenting urine fertilizer is just a theory and he has not personally tested it.
But Li Ke believed that the final result should be similar to what he expected.
Soon, more than a dozen peasants began to pour the urine from the carriage into several larger wooden barrels that were half buried in the ground next to the threshing floor.
Then more than a dozen civilians started adding koji and carbon sources to the wooden barrel according to the method taught by Li Ke. Finally, after stirring evenly, they sealed the large wooden barrel.
Looking at the scene in front of him, Su Xun's face was still full of suspicion.
By doing this, urine can be turned into fertilizer?
Obviously Su Xun didn't believe it, and even wanted to persuade Li Ke again.
He was really afraid that after Li Ke's setbacks, all his hard work would be in vain, and he would eventually suffer a blow and return to his original decadent appearance.
However, as soon as he opened his mouth, he was interrupted by Li Ke.
"Haha, Mr. Su, we will find out in a few days whether I can turn this urine into fertilizer!"
When Su Xun heard this, he could only sigh secretly.
Time flew by, and soon it was half a month later.
In the past half month, ten more wind-powered waterwheels have been set up beside the canal that stretches for more than ten miles.
During this period, Li Ke also asked people to dig deep ponds in places where one wind-powered water tanker could not fully irrigate. In the future, a secondary water lifting device will be built here, so that two wind-powered water tankers will work at the same time to transport water. Double the height.
The specific operation method is actually very simple, that is, first use a wind-powered water wheel to store water in a pond on the first level, then use another wind-powered water wheel to lift the water to a higher place, and finally Complete irrigation.
This method was also thought up by Li Ke, and this method can even be used for unlimited nesting of dolls. No matter how high the position is, this method can be used for water lifting and irrigation.
As a result, the cultivable area around Kunyang has increased by more than a thousand acres.
In half a month, Li Ke also did another very meaningful thing, which was to send people out to look for high-yielding crops.
What Li Ke is looking for is nothing more than three crops that are high-yielding and easy to grow: corn, potatoes and sweet potatoes.
In the previous life, these three crops almost influenced the history of Daxia. It was precisely because of the large-scale planting of these three that Daxia ushered in a large-scale population explosion because people could eat enough.
Among the three, the early yield of corn has reached five to six hundred kilograms per mu, and the yield of potatoes has reached two thousand kilograms.
This kind of yield is no longer comparable to that of wheat and rice.
If three high-yielding crops can be introduced, most of Kunyang's food shortage problem can be solved instantly.
But Li Ke didn't know whether he could find these three crops, and even warned himself not to have too much hope.
After all, these three were all produced in the Americas in the previous life, and they were introduced to Daxia in modern times.
And in the era that Li Ke lives in now, he still doesn't know what the world is like, and naturally he doesn't know whether these three have been introduced to the Wei Dynasty at this time.
But no matter what, I have already made efforts, and whether I can find it in the end is completely left to fate.
If you really can't find it, then you can only make a fuss about fertilizing and cultivating high-yielding rice and wheat.
On the carriage, Su Xun looked at Li Ke with confusion on his face. After a long time, he finally couldn't help but asked curiously: "Your Highness, where are you taking me in such a hurry?"
Li Ke just smiled mysteriously, and then said softly: "You will know soon!"
The carriage drove along the dirt road for more than half an hour before slowly stopping.
Li Ke suddenly made an invitation gesture to Su Xun and said with a smile: "Okay, Mr. Su, we are here!"
Su Xun frowned, and while lifting the curtain to look out, he asked Li Ke: "Your Highness, where is this?"
Li Ke smiled slightly: "Su Lao, do you still remember that I told you a few days ago that I would use that urine as fertilizer?"
