Tang Ping led a few people to the river. The water wheel was almost ready.
The keel waterwheel is recorded in Song Yingxing's Tiangong Kaiwu, and there are several types.
Tang Ping chose the one driven by wind and water at the same time this time.
Although the water level of the river in Shanghe Village has dropped due to drought, the water is still relatively fast.
Moreover, the wind from the northwest is always strong, and this is still a wind outlet.
So after the water truck was set up, Tang Ping thought that he would be able to draw water from the river just by relying on wind and water power.
As for the fields in the village, he dug a lot of ditches as early as last month when he asked everyone to dig pits for compost.
As long as the water can be sent up and into those ditches, it will be easy to irrigate the land in Shanghe Village.
"This thing..." Li Shimin is jealous now when he sees good things.
But there is no other way. Who can tell my nephew that the good things here are not available elsewhere?
"Wang Tieniu!" Tang Ping shouted.
Wang Tieniu rubbed his hands on the clothes behind his waist, wiped the sweat from his forehead, and then came up and respectfully shouted to Tang Ping: "My boss!"
"Have you learned how to do this waterwheel?"
"If you go back to the proprietor, you've learned everything!"
In whose hands is such a thing not passed down from son to daughter? As a result, when I got to the proprietor, he taught me casually.
"Then give that mold to General Li!"
"Yes!" Although Wang Tieniu was a little reluctant, he still came over with a box and handed it to Li Shimin.
Inside is the model Tang Ping bought, a set of scaled-down keel waterwheels.
Li Shimin and Li Jiancheng looked at each other. The civil and military officials in the entire dynasty were helpless, but when it came to Tang Ping, it was just a matter of casual words!
The key issue now is how to reward Tang Ping. With all his achievements, it is not easy for him to be promoted to a higher position.
However, some people still hope that he can keep a low profile. Now they come here quietly, avoiding other people's eyes and ears.
Therefore, these achievements are clearly his, but they cannot be announced to the world for the time being.
After thinking about it, it seems that I can only give some money.
Although they didn't know why Tang Ping needed gold, in their own eyes, what they gave was completely out of proportion to what Tang Ping paid.
"Brother Tang..."
Before Li Shimin could say anything playful, Tang Ping said again: "Now is not the time. Come back in a month and I will give you some..."
Tang Ping wanted to say seeds, but after thinking about it, it was inappropriate, so he could only explain: "It's the kind of thing called potatoes that was in the spicy soup this morning. I have a way for you to plant it on a large scale."
The northwest is a one-season potato growing area. Plants are sown in late April and early May every year and harvested in autumn.
If you are in Hunan and Hubei, it is a second-crop cropping area in Central and South China, and you can plant and harvest twice a year.
This is the most productive crop that Tang Ping could think of growing here.
You must know that the high-quality spring wheat seeds he brought back here can achieve a maximum yield of 500 kilograms per mu.
The yield of potatoes can be several times that of wheat.
"Well, that thing is really delicious!" Li Yuanji smacked his lips. He had been thinking about that thing after eating it just now, but he didn't have a chance to ask about it before.
"How is the yield?" Li Shimin is most concerned about this. Food is delicious, but if the yield is too low and it is grown just for the taste, it will definitely not work.
"I remember that the average yield per mu should be 3,000 to 5,000 kilograms. But you have to give a discount, and it is estimated that it can only be half."
After all, one acre of land in the Tang Dynasty was about eight-tenths of one acre of modern land. In addition, if you plant here, neither fertilizer nor pest control can compare with modern society.
So Tang Ping conservatively estimates that half of it would be good.
As soon as Tang Ping finished speaking, Li Shimin was shocked and almost dropped the waterwheel just now.
From 3,000 to 5,000 kilograms, even if you fold it in half, it’s still over 1,000 kilograms. Can there really be crops in this world that can produce more than a thousand kilograms per mu?
We must know that the average level reflected in the old and new Tang books, as well as the Turpan documents, is one to two stones per mu in the Tang system. Rice in the south can reach three stones, which is 276 catties per mu.
But this does not mean that the average yield per mu of millet grown in dry lands in the north is so high. In fact, the millet harvest in most dry lands is still around 100 catties.
So if Tang Ping hadn't said this about a thousand kilograms of yield per mu, Li Shimin would have shouted "Come here".
"Tang...little brother Tang, is what you said true?" Even so, Li Shimin asked again to confirm.
"It should be about the same. This time I will plant fifty acres in Shanghe Village first. Potatoes are not planted with seeds, but cut into pieces according to the bud eyes and sown in ridges!"
The so-called ridges are composed of high ridge platforms and low concave furrows. This planting method has been very popular in the north during the Han Dynasty, so there is no need for Tang Ping to teach them.
"The buds I have cultivated will be planted in 50 acres in Shanghe Village. You can take the extra buds and ask the court's farming department to try planting them for one season."
This kind of thing has to be seen to be believed. After all, no one in this era can imagine that crops can have such high yields without seeing it with their own eyes.
Therefore, it is impossible to promote it nationwide without trial planting.
On the way back, Li Shimin was still dizzy. The yield per mu was a thousand catties!
That’s a thousand pounds!
Even if Tang Ping said that it would not taste good if used to make food for a long time, you must know that many people may not have enough to eat due to wars and natural disasters. Do you care whether it tastes good or not? During a real famine, even bark, grass and roots will be robbed.
Why is Tang Ping so good at farming? Is he learning from the God of Agriculture in heaven?
However, what Li Shimin is most worried about is Tang Ping's safety. Last time someone came to report that there were people from the Wang family watching Shanghe Village, but because the other party did not make any moves, Li Shimin did not touch those people, otherwise it would have been clear that Tang Ping was It has something to do with myself.
Now it seems that even the two veterans Lao Cui, Lao Du and Lu Yi are not safe.
"Brother, take out the sword order!" Li Shimin suddenly said seriously to Li Jiancheng.
"Well, looking at the current situation, no matter how hard we hide it, we can't cover up his light. Use the sword order to ask the Pei family to send someone to Shanghe Village."
The so-called sword order was when Li Tang founded the country, he did a great favor to the Pei family. The Pei family sent three sword orders to the Li family.
The Pei family was the pinnacle of personal martial arts in the Tang Dynasty.
After using two of them over the years, I still have the last one left.
"Third brother, please go to the Pei family and use the sword order to ask the current sword master of the Pei family to come to Shanghe Village to protect Tang Ping."
"Okay! Give me the telescope when I get back!"
"Ahem... Big brother, you can keep an eye on the Ministry of Industry and let their craftsmen learn how to make the new keel waterwheel as soon as possible."
"Second brother, my telescope!"
"..." Li Shimin was helpless. If the telescope was used well on the battlefield, it might even determine the outcome of a battle.
But it doesn't seem quite right to snatch his brother's belongings like this.
