Corn, potatoes, sweet potatoes, peppers......

All of these are from Central and South America.

He marked the locations of later Mexico and Colombia.

Then, with a pen, he sketched out the route of Daxu's voyage to South America.

Xu Yichan couldn't help but gasp.

This line almost goes around the world.

"The advantage of going west is that you can supply water and food along the way."

Ye Qiange's paintings are very detailed, including some islands, and the locations are also indicated one by one.

"If you go east, if you want to get here, the element of luck is relatively large, and it is not advisable."

Ye Qiange secretly added a sentence in his heart, it was almost impossible.

A year or two on board requires not only superb shipbuilding skills and seamanship, but also extraordinary survivability.

"How long does it take to make a round trip west?" Xu Yichan was silent for a while and spoke.

"At least three years."

Ye Qiange remembered that when Zheng He went to the Western Ocean for the fifth time, it took more than two years to reach the east coast of Africa and the Red Sea coast.

"Although distant waters can't save near fire, if they succeed, they will surely bless their descendants and benefit all generations." Xu Yichan's eyes bloomed, "My Da Xu will usher in a prosperous era!" ”

The corners of Ye Qiange's mouth hooked, and he finally succeeded.

He tried his best to bring about this in order to be able to introduce these food crops as soon as possible.

In later history, potatoes, sweet potatoes and corn were all introduced in the middle and late Ming Dynasty, nearly a thousand years ago.

In the past thousand years, countless people have starved to death due to natural and man-made disasters.

Ye Qiange didn't believe it, with the strength of one country, he couldn't introduce these grain crops into China thousands of years in advance!

"This matter will be left to you to deal with." Xu Yichan said softly, but there was a hint of resoluteness in her tone.

He brought about this, and he would not be a bystander.

He nodded in agreement.

"I will issue an order to let the navy fully cooperate with you." Seeing that Ye Qiange agreed, Xu Yichan struck while the iron was hot and settled the matter.

"And when am I leaving?"

In addition to the Yangtze River Basin, the distribution of the Daxu Navy Base is the coastal waters, and the closest to Chang'an is the Bohai Sea.

Ye Qiange's words alluded to Dengzhou.

Xu Yichan frowned and asked, "Are you going to Dengzhou?" ”

Dengzhou Laizhou Bay, the location of the naval base in the Bohai Sea area of Daxu.

"Of course." Ye Qiange said, "Since I have full authority to deal with it, I naturally have to understand the basic situation. ”

"In addition, I have designed several types of boats, and I have to communicate with the master shipwright to study them."

"You can also build ships?" Xu Yichan looked at Ye Qiange in surprise.

Ye Qiange sighed, and said with a sad face: "Who makes me so versatile, sometimes, this is also a great burden. ”

Xu Yichan twitched a few times out of the corner of her eyes, stopped looking at him, and silently put away the map on the table.

"Wait a minute, you haven't answered me yet."

Xu Yichan glared at him, and then her pretty face was slightly feverish, and she said softly: "According to the ancestral system, as the emperor, you can't leave the palace for too long, and it's the first year of marriage, so it's not allowed." ”

"And this rule?" This time it was Ye Qiange's turn to be surprised.

What a rule-breaking, actually restricting personal freedom, it's too inhumane.

But in the blink of an eye, he thought about it, but he felt that it was reasonable.

In the past, the emperor's harem, countless concubines, three thousand beauties, if there were no rules and constraints, they all went out of the palace to play, and there was no one for half a year or a few months, which is indeed unreasonable.

Xu Yichan saw Ye Qiange's gloomy appearance, and couldn't help but say: "I will issue an order to transfer shipwrights and naval commanders from Dengzhou to cooperate with you." ”

Ye Qiange shrugged, and there was no objection, this method was the only way to do it at present.

"Aren't you eating?"

Xu Yichan hummed lightly, then picked up a book and read it carefully.

After Ye Qiange cleaned up the meal, a flash of inspiration suddenly flashed in his mind, and a happy color suddenly flashed on his little face.

"Why did you forget this stubble?"

Ye Qiange patted his head, his face full of excitement.

"What's wrong?" Xu Yichan raised her head slightly.

Ye Qiange hurriedly said, "Take out the map first." ”

Seeing his excited appearance, Xu Yichan was quite puzzled and handed him the map.

Ye Qiange quickly spread out the map, his eyes staring at the south of Da Xu.

- Southeast Asia.

He used his pen to circle Vietnam and Cambodia in later generations.

"As far as I know, this place should be the place where Annam and Chenla are located." Ye Qiange's eyes were blazing, and his tone was sonorous.

Xu Yichan glanced at Ye Qiange, and said dissatisfiedly: "Annan has long been attached to my Da Xu, and now it has become a mansion of its own and is subordinate to Guangzhou. ”

"As for Zhenla, although it is not attached, it will send envoys to pay tribute every year."

Ye Qiange's old face turned red, and he was despised by the empress.

"That's not the point." He coughed lightly a few times and said with a radiant face: "As far as I know, there is a kind of rice in the Zhenla country, called Champa rice. ”

"After this rice is planted, drought does not seek water, waterlogging does not sparse, there is no dung soil, and it is not tired, it is adaptable, it is born without choosing the land, and the growth cycle is short, and it can be three crops in a year!"

"Drought does not seek water, waterlogging does not dredge, can you still harvest three times a year?" Xu Yichan's head began to buzz again, and the music in her hand snapped together.

Ye Qiange nodded hurriedly, "Moreover, this rice is longer than the big Xu, the ear is long and mangless, the grain difference is small, and the yield per mu can be increased by at least thirty percent!" ”

"Sancheng!" Xu Yichan muttered, three percent, and three ripe, together, the yield can not only increase by three percent, thinking about it, the light in his eyes gradually brightened.

Thirty percent, it doesn't seem like much.

Without the yield of corn, potatoes, sweet potatoes, it sounds so terrifying.

However, Champa rice is readily available, and once confirmed, it can immediately spread all over the north and south of the river, not as illusory as potatoes and sweet potatoes, and it remains to be said separately.

"Is this rice really as good as you say?" Xu Yichan's breathing was slightly short, and there was a trace of seriousness and solemnity on her face.

"Your Majesty can immediately issue an order, and send someone to Zhenla to find out." Ye Qiange has no fear.

Champa rice is specially cultivated by the Champa people, which is drought and waterlogging-tolerant, and has significant advantages, which is equivalent to the improved rice of this period.

Xu Yichan groaned for a while, and then said coquettishly: "Summoning Prime Minister Murong to enter the palace immediately." ”

"Whoa!" After one of the eunuchs answered, he immediately withdrew.

The sooner this matter is identified, the sooner preparations can be made, and when it is planted next spring, it can be popularized.

Ye Qiange took a long breath, carried two food boxes, and walked outside leisurely.

"If this is true, you will have the merit of offering a treasure, and I will grant you a request." When I walked to the door, a leisurely voice came from behind me.

Ye Qiange's body was stunned, the corners of his mouth curled, his footsteps did not stop, he continued to go out, and disappeared at the door of Chongwen Hall in a blink of an eye.