Yang Hao knows that fertilizing crops is not applied casually, and this kind of manure that has not been fermented is manure, which is manure, can be used directly, which can easily cause seedling burning.

Good things can be counterproductive if they are not used correctly.

The manure mixed with plant ash and straw is fermented and decomposed at high temperature, which can kill harmful bacteria.

The formation of beneficial bacteria is conducive to the growth and development of crops, of course, as Yang Hao, who has lived in the countryside, knows that if the concentration of manure is too high, there will also be crop death, and it is best to have a slightly thinner concentration to achieve the best effect

Now the crops in the field have not broken the ground, and there is still time for Yang Hao to make fertilizer.

Under Yang Hao's guidance, the manure transported back was divided into a small dung heap, mixed with water, and sealed with soil.

This can better ferment, Yang Hao knows that if he wants to achieve the best effect, he needs to add some other auxiliary things, but for the current Daqi, he can only use this simplest method to make fertilizer.

Yang Hao had been busy with these guano for several days, and only after knowing that he had confirmed that the rest of the people had completely mastered the technique of making manure, he was relieved to hand over these things to the people below.

Although Yang Hao has been accompanied by feces and urine every day in the past few days, and his body has a foul smell, he doesn't think it's such a disgusting thing.

The so-called crops and flowers depend on fat, and if you want to let go of your belly and eat a lot in the future, you will inevitably deal with these disgusting things.

Yang Hao has such an identity, he personally came to get these bird droppings, although ordinary people don't know what is good about this thing, but Yang Hao attaches so much importance to it, it proves that these things are by no means simple,

After the tribesmen finished their farm work every day, they looked at the workers curiously, stirring the bird droppings, and over time, watching the manure became a unique hobby of the common people of Daqi.

After finishing the guano matter, Yang Hao was finally able to take a breath and spent two days leisurely with the already round giant panda in the palace.

Yang Hao threw himself into work again.

All school-age boys in Chang'an City have been forced to study in schools.

The study time is even five hours a day.

With nearly 100 children, the school's already small footprint seems a bit small.

After Yang Hao inspected it, he waved his hand and forcibly requisitioned several nearby houses.

And let people tear it all down and leave open space, all of which will be used as land for the university.

After the complicated things came to an end for a while, Yang Hao began to lecture for the officials of Daqi again.

Through this period of teaching, Yang Hao's teaching level has skyrocketed, which makes him feel that he has a great talent for being a teacher.

He didn't teach much, he didn't learn much, and he didn't have to teach so many lessons to future generations.

There are no more than two kinds of courses in the school, literacy and mathematics, and although there are no learning materials, the officials have made great progress.

After several school examinations, Yang Hao felt that most people had basically reached the level of the second grade of primary school.

Knowing their learning progress, Yang Hao began to prepare to teach some more complex things.

In mathematics, he began to add plane geometry, and in terms of text, he used his own modified thousand-character text.

Heaven and earth are yellow, the universe is desolate, and through this catchy thousand-character text, their literacy level can be enhanced faster.

As long as within a few years, the thousand-character literature will be written, and there will be basically no problem in writing.

To be honest, Yang Hao doesn't know if he has mastered a thousand words, after all, living in a modern society where there is no need to write often, many rare words have already been returned to the teacher.

But this is not difficult for Yang Hao, as a senior intellectual in this era, he doesn't know how to write, and he solves this trouble by making it up.

In this regard, he is the authority, even if he is wrong, no one jumps out and points at his nose and scolds him for not learning and not knowing.

The knowledge-thirsty official listened very carefully, for fear of missing a word and feeling a little sleepy, so he pinched his thigh vigorously to make himself sober.

In addition to teaching these courses, Yang Hao will also reveal some basic common sense things to the officials, such as the world they live in is a big ball.

This shocking remark immediately aroused the interest of officials.

"Chief, since we live on a big ball, wouldn't those who live on the other side of the ball fall down?"

An official asked, puzzled.

Yang Hao smiled: "This is the magic of this world, although I don't know what the truth is, but I guess there is an invisible force that binds us to this land."

The reason why I think the world is a big ball is that when I was a child, I came across a big mountain, where I lived for a long time, and I have never seen that mountain.

At that time, the tribesmen were very frightened by this sudden appearance of the mountain, thinking that it was some kind of revelation from the gods.

Many animals were slaughtered and sacrificed to the gods, but I was too young to fear the gods as the people.

One day, I secretly left the tribe and came to the mountain, when suddenly there was a real voice in my head, which seemed to have a magical power, and took me slowly to the top of the mountain.

Standing on the top of the mountain, I saw the world as it really was, and the earth under our feet was a huge ball.

I was terrified, and like you, I wondered if people on the other side of the world would fall.

Later, when I came down the mountain, the mysterious mountain disappeared in a short time.

Later, I called the big mountain Buzhou Mountain.

If you want to meet this erratic mountain, you must have enough good luck.

”

With the serious expressions on everyone's faces, Yang Hao stopped this nonsense story, but picked up a clod of soil on the ground at random and threw it into the sky.

After the clod rises to a certain height, it begins to fall and fall to the ground with a clear "pop" sound.

Everyone was still immersed in Yang Hao's mysterious and mysterious story, and was awakened by this clear sound.

The officials who were jumped off looked at the crumbled clods of soil on the ground with some blankness, not knowing what Yang Hao meant.

"You see what I mean!"

Yang Hao's expression at this time was like a magic stick, fooling the simple people.

Everyone stared at the place where the clod of soil fell, frowning and pondering, what did it mean to get along with Yang Hao.

After a long time, suddenly a young man slapped his thigh excitedly and shouted, "I understand, haha, I understand." ”

Everyone looked at the young official differently, not knowing what she understood.

This young official, Yang Hao felt a little familiar, but he couldn't remember which one.

"Tell me what you understand?"

Yang Hao smiled.