The man circled the enormous object several times, even touching it. It was incredibly hard and cold to the touch, and under the dim light, it gleamed with a deep blue metallic sheen, which was truly awe-inspiring.
What is this?
"Is this material the same as this dagger?"
Lu Ziqian pulled a folding dagger from his sleeve; it was something Su Yujiao had been working on for a long time before giving it to him.
Su Yujiao nodded: "Yes, they are all forged from high-quality steel."
"This is called an excavator."
"As for its function, as the name suggests, it is used for digging. One shovelful is equivalent to the work of twenty people."
Lu Ziqian stared wide-eyed in shock: "How can such a behemoth be controlled?"
When the man asked the question, he even raised his hand slightly, but... it didn't budge.
Su Yujiao found it amusing to see the man looking like a country bumpkin who had never seen the world before.
You think you can lift a 10-ton excavator by hand? Are you kidding me?
"Come up with me, I'll show you how."
To this end, she even used the pretext of getting an excavator license to spend several days learning from an instructor.
"I'll demonstrate it for you."
When Lu Ziqian saw the excavator raise its large shovel, his eyes widened in shock.
If everyone had one of these and used them on the battlefield, wouldn't they dominate the entire land?
During sieges, it could flatten everything with a single shovel; when encountering enemy troops, it could simply crush them; it was impervious to swords and spears, and invincible...
Hearing Lu Ziqian's excited remarks, Su Yujiao laughed and said, "Are you using an excavator like a tank?"
"tank?"
"What is it?" Lu Ziqian seemed to have grasped the key point; he had always been fascinated by military weapons.
"It's what you just mentioned, the tank can do all of that, it can cross ditches, it can go up hills, it's like walking on flat ground, it's the land station." Su Yujiao said, giving a thumbs up.
"Tanks are made entirely of steel, that's what makes them truly invulnerable, they wouldn't be afraid even if the sky were to fall."
"Excavators won't work; those are for infrastructure construction."
Lu Ziqian became more and more engrossed in listening, and excitedly grabbed Su Yujiao's hand: "Jiaojiao, can you buy me a tank?"
"..."
"Okay, just wait."
As if by magic, Su Yujiao pulled out a small toy the size of her palm from her sleeve.
"This is a tank? Why is it so small?"
"Is this fake?"
"Yes, it's a small toy that's suitable for An'an to play with."
"..."
"I want it for real."
"Why don't you just fly to the sky? Where am I supposed to buy you a tank?"
"Are weapons from the Great Ming Kingdom something that ordinary people can just buy whenever they want?"
Lu Ziqian looked disappointed and could only look at the toy. He couldn't imagine how powerful it would be if it were magnified countless times and forged from fine steel.
The more a man looked at it, the more fascinated he became, just like a child who couldn't get candy and dreamed of having it.
"Forget about that, you can only have it in your dreams."
"This is the real thing. Don't you want to learn how to control it?"
Lu Ziqian put away his toys and focused on learning how to operate the excavator.
That's why they say men have a natural advantage when it comes to driving.
Su Yujiao studied diligently for almost half a month, while others mastered it in one go. You can't help but admire them.
Lu Ziqian was so excited that he shoveled down and created a large crater in the ground.
"Don't dig! You'll have to find someone to fill the hole after you're done."
As a result, someone had just gotten hooked on it and couldn't just stop. It was just filling in the soil, not a big deal.
With a few loud bangs, he turned the perfectly good martial arts training room into a honeycomb!
Su Yujiao was utterly speechless!
That's so childish!
“I bought four cars in total. You can give two to the Crown Prince. Let him decide how to use them.”
"Teach the prince how to operate it."
"Don't worry, I've got it covered."
Lu Ziqian was full of confidence and very happy to be a coach.
After all, he was the first person to be able to drive this behemoth.
Su Yujiao added a few more words of advice, still feeling uneasy: "This thing is too big, I feel it will be difficult to transport. Let's forget about those islands and mountains, let the local people clear the land."
"It's fine for the Crown Prince to use it in the capital."
"If he can find a way to transport them there, that would be great. Those islands are deserted and it would be much easier to use these things."
"Unlike in the capital, where you have to use it secretly at night."
Lu Ziqian nodded: "Yes, I will explain it to him."
After the two came out of the training room, they deliberately locked the door with a large chain to prevent anyone from entering.
The next day, the prince arrived and exclaimed that it was a miracle the moment he saw the excavator.
He thanked Su Yujiao repeatedly, treating her like a goddess.
Afterwards, the Crown Prince and Lu Ziqian selected more than a dozen trusted confidants, and Lu Ziqian personally taught them.
After they taught them, they made these people work in shifts at night.
With a dozen or so people and four excavators, it's equivalent to a small construction team.
In just a few days, all the fields, mountains, and wastelands were cleared out.
When the crown prince learned that all the wasteland had been cleared in just a few days, he was so excited that he couldn't sleep all night.
The next morning, after the court session, he immediately went to the courtyard to report the news to Su Yujiao.
"Sister-in-law, your excavator is absolutely amazing."
"What would have taken over a thousand people and half a year to do was completed in just over ten days with only a dozen people."
The crown prince was extremely excited.
"Now everything is ready except for the east wind, we can start sowing after the New Year."
Su Yujiao shook her head: "Not yet."
"The newly acquired land is not fertile enough, so we need to add organic matter and cultivate the soil more deeply."
What is organic fertilizer?
"Organic fertilizer is composted cow and sheep manure, or rotten leaves, rotten fish and shrimp, wood ash, etc."
"Using urea fertilizer is more effective."
"Deep cultivation means turning the soil deeper."
Upon hearing this, the prince realized that there were so many intricacies involved in farming.
Such a large area of land must require a lot of fertilizer.
Where did he find so much cow and sheep dung?
"Does my cousin-in-law have any good ideas?"
"If the soil isn't fertile enough, can potatoes still be grown?"
"It can be grown, but the potatoes won't grow very big; they'll probably all be the size of an egg."
Upon hearing this, the Crown Prince was astonished that the harvest would be so different!
"I have a recipe for making local phone credit here; perhaps the prince can use it."
“Heat 50 catties of human urine to 20%, put it into an earthenware pot and steam it to 10%, add 2 catties of hot gypsum and stir, then grind it after cooling. This substance is called urea gypsum. Apply 10 catties as base fertilizer per mu and 5 catties as top dressing later. It is more effective than farmyard manure.”
"If you want to increase production, you also need to get some rotten fish and shrimp, eggshells, and broken bones to supplement phosphorus and potassium."
This was a method that Su Yujiao found online. She was afraid that the Crown Prince wouldn't understand it, since it contained some chemical terms.
So she read it aloud while explaining it.
"There are plenty of people in the palace, so human urine is readily available and easy to collect."
"If that's still not enough, we can also buy from households in the capital at low prices."
"Most people in the capital do not farm, so they do not need to collect fertilizer or compost manure."
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