In the early morning, as soon as the gate of Chang'an City opened, Liu Yuan led a tall horse and walked slowly and leisurely towards the world manor.

As one of the Siqing of Sinong Temple and one of the Nine Qings, Liu Yuan has not been so leisurely for four or five years.

Five days, this is a holiday approved by the emperor himself, and Liu Yuan, who has never received such a long vacation, suddenly felt that every corner of his body was singing.

Coming out of Chang'an City, Liu Yuan would stop to look at the growth of crops every time he arrived at a piece of farmland, which was his professional habit and could not be changed.

He looked all the way, and when he found that the sun was halfway up, he immediately patted his head. The guest voted for the post, and it was a very serious faux pas to not arrive before noon the next day.

So he immediately mounted his horse and galloped.

The path along the Wei River has been expanded by craftsmen to facilitate the transportation of materials. The first seven-story cement high-rise building has been completed, and the second building is under construction.

Opposite the Wenwu Courtyard, by the Wei River, there are two exquisite wooden houses, Yao Silian and the great Confucian Yu Huanzhi are fishing in the small pavilion in front of the door.

Seeing the two great Confucians, Liu Yuan slowed down his horse speed and arched his hand on the horse: "The student has an appointment with someone, so go first." ”

Yao Silian waved his hand: "Let's go." ”

Looking at the departing Liu Yuan, Yu Huanzhi snorted: "If you have an appointment with someone, you should set an itinerary, what kind of system will you become if you are so flustered." ”

Yu Huanzhi cares most about the rules and is an extremely square old gentleman.

Yao Silian coughed and said: "Okay, okay, this Liu Yuan is a good descendant, he has been in the official position for so many years, he has never been corrupt, and he has not used his power to wantonly accumulate wealth and serve his mother wholeheartedly." It can be regarded as a model for officials. ”

"Huh? Hooked! ”

Liu Yuan passed by the Thunder Division, because his horse was very fast, and was intercepted by the Xuanjia Army.

"This is an important place for the Tang military, and fast horses are not allowed on the road! Who are you? ”

The bright horizontal knife was almost on his neck, and Liu Yuan hurriedly said: "This official is Liu Yuan, the Siqing of Sinong Temple." ”

After speaking, Liu Yuan took out his official spy.

A few of the soldiers of the Xuanjia Army who were in charge of guarding this place were literate, and after looking at the official spy, they moved the horizontal knife after confirming that it was correct: "My lord, please forgive me, my lord came on horseback, didn't you see the notice on the road?" ”

Liu Yuan was embarrassed and said: "This official has an appointment with the prince, and he is about to miss the deadline, so he rides faster." ”

The soldier returned the official spy to Liu Yuan, and said with a smile: "The prince is in the world's manor not far away, and the lord is looking for the tallest mansion in the village." ”

The sergeants got out of the way, and Liu Yuan got on his horse and continued to gallop towards the world manor.

There were farmland on both sides of the road, and although he knew that he was about to miss the deadline, Liu Yuan couldn't help but get off his horse and take a look.

When he found that the wheat in the field was manure like the wheat in the prince's experimental field, he was immediately deflated.

That filth can really fertilize the ground!

After some hurrying, Liu Yuan finally arrived at Lengfu in time.

Li Chengqian was waiting in front of the door in his new prince's clothes, and said with a smile after Liu Yuan's salute: "It's really time for Siqing to come, the banquet has been set up." ”

Liu Yuan said ashamedly: "Previously, Weichen checked the farmland and mulberry situation all the way, and was intercepted and interrogated by the Xuanjia Army, and he almost missed the time, ashamed, ashamed!" ”

Li Chengqian waved his hand: "This is not above the court, so don't call yourself a micro-minister, please come in." ”

Liu Yuan followed the prince into the Leng Mansion, and when he saw the elegant delicacy in the Leng Mansion, he couldn't help but admire: "The courtyard arranged by the Venerable Master is really elegant. ”

Li Chengqian said with a smile: "The teacher has really worked hard for this courtyard, Wenchen will find an elegant atmosphere when he comes here, and Wucheng will also find the meaning of iron and blood here." Oh, the teacher was sad a few days ago, and he is recuperating in bed, so it is not suitable for hospitality, please forgive me, sir. ”

Liu Yuan hurriedly said: "Don't dare, don't dare, I don't know if the respected teacher can get better?" ”

"My master doesn't have to worry about you, come in quickly, this king has been waiting for you for almost an hour!" Li Tai poked his head out of the door of the restaurant and shouted.

If the guests do not come, the host will not open the table. But Li Chengqian ordered the kitchen to make a table of good dishes, which made Li Tai's mouth water.

Usually, when they eat, there are only five people at the same table at most, and there are only three dishes, so they are afraid that they will waste if they can't finish eating.

Liu Yuan made a big red face, and after giving Li Tai and Li Ke a salute, he sat in the guest seat.

After five flavors of food and three rounds of wine, Liu Yuan said to Li Chengqian: "Your Highness, you don't have to wait for the wheat to ripen, I admit defeat!" But I don't understand why the methods of the predecessors that lasted for thousands of years could not be compared to the methods of His Highness? ”

Li Chengqian put down his chopsticks and said: "Liu Siqing, let's talk about the old man's guess about the grass and trees and the gray land, if it is not right, Liu Siqing will laugh at it." ”

Liu Yuan was very curious about the mysterious master of His Royal Highness the Prince, and hurriedly sat down and waited for Li Chengqian to speak.

"What does Liu Siqing think the farmers in the world believe in the most?"

Liu Yuan lowered his head and thought for a while before saying, "Huangtian, Houtu!" ”

"There are many ways to worship our ancestors, both as civilians and as we do, and the most common of them is fire.

Therefore, Master speculated that the earliest act of burning straw was to sacrifice the soil to thank the earth for its gifts, and then it gradually evolved into the saying 'burn straw and fertilize it with plant ash'.

Liu Siqing, haven't you ever thought about what supports straw burning? The meat that has been burned by the fire cannot be eaten, and the crops will 'eat' the straw that has been burned by the fire? ”

It was the first time Liu Yuan heard such speculations and statements, and after thinking for a while, he felt that this statement might be very reasonable.

Li Chengqian also said: "According to my master, even if the straw is broken into pieces and filled in the ground, it is better than the ashes of plants and trees. In the coming year, Liu Siqing might as well experiment like this year. ”

Liu Yuan shook his head: "No need, what the Venerable Master said is very reasonable, His Royal Highness the Prince, I see that soybeans are planted in the middle of every two rows of wheat in your field, I don't know what this means?" ”

Li Chengqian's face turned red now: "That's an insurance set up by the teacher for Lone." My master said that this is the first time he has done such a thing, and he doesn't know how effective it is, but he is sure that if soybeans and wheat are interplanted, the wheat yield will be increased. ”

It was the first time Liu Yuan had heard of this statement, and he couldn't help asking, "I don't know what the truth is?" ”

"Master Ben Wang said that leguminous plants have nodules at their roots, which produce nitrogen fertilizer, and most crops need nitrogen fertilizer to grow. The word 'nitrogen' in nitrogen fertilizer is the first time this king has seen it, and it is the word 'qi' for breath and the word 'inflammation' for heat. ”

"Nitrogen fertilizer? The word formed by the airfire? ”

Liu Yuan admired His Royal Highness the Prince's master at this time, and he couldn't imagine that this person was so knowledgeable, how could he pay a visit.

Headache, where did all my tickets go? There are so few tickets today! …… Thank you for the crippled monthly pass at the beginning of the thirty-year-old.

(End of chapter)