Daming: Grandpa Emperor, please get up and sit on my throne!

Seeing Ma Sanbao coming back, Zhu Yunhuan called out to Ma Sanbao nonchalantly, and then stepped directly into the sandy soil. He no longer had the mysterious and strategizing look of the past, and there was a rare impatience on his face.

When the leaves turn yellow, it is the period when the rhizomes expand rapidly.

It took about fifteen to twenty days. Today, Zhu Yunhuan inspected his sweet potato field as usual and found that a small part of the sweet potatoes had already poked out. After a quick calculation of the time, he knew that it was almost time.

Waited for so long.

He was also very excited, even a little nervous.

I can't wait to see...how much stuff can come out from under here.

Of course, seeing sweet potatoes popping out of the ground, he was already half relieved. No matter how many there were, at least it meant that they were growing well.

As for production.

The yield of primitive sweet potatoes in ancient America was about 6-8 kg per mu. When Columbus first arrived in the Americas, the sweet potatoes commonly grown by local Indians already had a considerable yield per mu, even reaching several thousand kilograms per mu.

In Chinese history, it is also recorded that Chen Zhenlong was the first person to introduce sweet potatoes. This idea came to him because he learned that the yield of sweet potatoes per mu was as high as 2,000 to 4,000 kilograms per mu at that time.

Therefore, as long as this thing grows smoothly, no matter where the sweet potato vines and seeds come from, there should not be any major surprises in the yield.

Although this yield is far less than the 10,000 jin per mu of the improved version in later generations.

But it was enough for Zhu Yunhuan.

Even if we give it a half-price discount, the yield per mu is 1,000 kilograms, which is much higher than the 200 to 400 kilograms per mu of rice and the 300 kilograms per mu of wheat!

Of course, Zhu Yunhuan hoped for more.

And now... it's time to draw the prizes!

"By the way, you must be careful when digging."

"Don't damage the real sweet potatoes. Each one is very valuable. Also, don't break the vines on them. They are all good things!" Zhu Yunhuan carefully swung the hoe into the ground and gave a few more instructions out of concern.

"I understand." Ma Sanbao responded.

He immediately took off his outer clothes and rolled up his trouser legs and sleeves impatiently. He also picked up a hoe and trotted to the field, digging the weeds more carefully than Zhu Yunhuan.

Neither of them said much, and they carefully dug the sandy soil in the backyard of the Qianqing Palace.

after awhile.

"Crash!!!"

Zhu Yunhuan pulled out several large sweet potatoes from the ground with a sudden yank. Their skin was light purple, and their sizes were naturally incomparable to those improved varieties in later generations, but the big ones were at least half a pound in size!

They have been growing in a relatively suitable temperature for about three months. There are almost no small ones, and the smallest ones weigh less than half a pound. Each sweet potato is very plump.

Zhu Yunhuan stared at the string of sweet potatoes of different sizes in his hand.

He heaved a sigh of relief, his heart at ease: "It seems that the production volume can be guaranteed!"

Hear sounds.

Ma Sanbao turned around and took a look.

He couldn't help but show a look of joy, saying, "As expected of you, Your Majesty, who has taken good care of you for over three months. This head is even bigger than the one I found originally!"

He praised it out of habit.

Then he buried his head again and started digging the sweet potatoes under his feet.

Obviously... he hasn't realized what this means yet - after all, it is difficult for people to accurately estimate and calculate the quantity, weight, yield per mu... These numbers. Unless you are someone who is particularly sensitive to numbers, who can immediately calculate the yield by looking at a few sweet potato lumps?

What's more, Ma Sanbao had no idea about the per-acre yield of this thing.

Zhu Yunhuan didn't mention it deliberately.

He put the sweet potatoes in his hand aside and continued to busily dig up all the sweet potatoes in this patch. He had to finish digging them before he could calculate the specific yield.

that's it.

The master and servant busied themselves silently in the field, digging and raking carefully, and from time to time pulled up a vine with dangling sweet potatoes hanging on it.

However, the sweet potato seeds and sweet potato vines that Ma Sanbao collected were not many.

This sweet potato field is not very big.

The two of them didn't spend too much time turning over all the sweet potato vines.

In the open space nearby, sweet potatoes of all sizes were piled together. The air was filled with the stench of earth and the unique aroma of sweet potato vines and leaves.

"Your Majesty... it seems... it has been dug almost completely." Ma Sanbao pulled up the last vine, looked around, and said.

At this moment, he suddenly wrinkled his nose and twitched it, as if he suddenly smelled some strange smell. He frowned and said, "What...what is this smell? It smells sweet and fragrant."

As he spoke, he sniffed and looked towards the source of the fragrance.

But I found that the fragrance actually came from a burning charcoal brazier. There are quite a few charcoal braziers here, all of which are used to maintain the warmth here, allowing the flowers, plants and vines here to grow like in spring and summer.

And in this fragrant charcoal basin.

There were actually two big sweet potatoes that they had just dug out, and the surface of the sweet potatoes had been roasted and turned a little black.

Ma Sanbao immediately said nervously, "This... Your Majesty..."

But he saw his master's face showing a hint of joy, and said: "It looks like it's almost cooked!" Then he picked up the hoe in his hand and pulled out the two "black lumps" from it, saying: "Try it, it should taste good."

"Try it?" Ma Sanbao looked a little confused.