[If you travel back in time, it is important to understand the key position of food.

Society is essentially a food war, and when you master food, you have the initiative.

At that time, the production of food was actually quite simple, in part because the cultivation technology was relatively primitive, and the seeds and fertilizers were not mature at that time.

If you're lucky enough to cross and want to quickly increase food production, fertilizer is a breakthrough.

However, it is important to note that ancient technologies could not produce fertilizers, and even in modern times, most countries still need to import some fertilizers.

However, this does not mean that it is completely impossible to make fertilizers. You can try to make soil fertilizer.

Next, I will teach you a few ways to make soil fertilizer:

Soil amine fertilizer: take 50 kg of fresh cow dung, 50 grams of soybean flour, 5 kg of cooked gypsum powder, mix according to this ratio, and seal it with an earthen kiln for 3 days. When fertilizing, mix with three times the weight of water.

Soil sulfur powder: take 50 kg of human manure, 5 kg of plaster, 25 kg of water, mix it according to the same proportion, and seal it with an earthen kiln. Fertilization can be applied after 10 days.

Soil nitrogen and phosphorus compound fertilizer: animal bones are processed into bone meal as base fertilizer. The production of cooked gypsum is relatively simple, only the raw gypsum ore needs to be crushed and heated to 150 degrees, and dehydrated.

In addition to these chemical fertilizers, we can also make organic fertilizers. Collect all available organic matter, such as straw, fallen leaves, human and animal manure, etc., and mix it with mulch such as straw.

Turn over the pile every three or four weeks, and it can be used after three months.

In addition, plant ash can be used as potassium fertilizer, and guano is a good phosphate fertilizer.

Crop rotation is another way to increase yields, such as soybean and wheat rotation per year, which can be carried out in multi-cropping conditions during the year.

Crop rotation can not only control pests and diseases, regulate soil fertility, but also make balanced use of soil nutrients.

With this knowledge, you will not only be able to solve the problem of food shortage, but you will also be able to make the people feel happy with you, and even worship you as a god after your death.

So traveling back to ancient times, making soil fertilizer is the way you must go. 】

The people of various dynasties were stunned when they saw the video on the canopy.

They always thought that the grain in the future was so productive because their seeds were better, or they planted high-yielding crops! However, what they didn't expect was that there would be such a thing as fertilizer in later generations!

And looking at the introduction on the canopy, the technology of making fertilizers is not something that any country can master, and most countries do not have the ability to be completely self-sufficient!

This makes them a little worried, is this the case in later generations of China?

They have experienced hunger, but they know what life would be like if there was not enough food.

However, when they think of the prosperous world of the future, they feel that their worries are unnecessary.

Then they saw the introduction of various soil and fertilizer production methods on the canopy, and they quickly remembered it silently!

This is a windfall for them, and with these fertilizers, they believe that they will definitely be able to grow high-yield food in the future!

The landlords of various dynasties saw the message on the canopy, and they were blinded!

They didn't expect that there would be such a killing weapon in the future generations, making the originally barren land fertile!

It can also make food more productive and people no longer suffer from hunger.

And compared with the steam engine, the method of making soil and fertilizer on this canopy is simpler, and it is simply the favorite of these landlords!

So they gave orders to their family trees, and asked them to make the soil fertilizer mentioned in the canopy, and then test in the fields whether they could make the grain produce high!

The scholars of various dynasties, they were crazy with joy during this period of time, and they became the most respected people at this time!

Compared to those people who can only silently remember the method of making soil and fertilizer on the canopy in their minds, they can use a pen to write on paper to prevent themselves from forgetting the method of making soil and fertilizer.

And the method of making soil and fertilizer they wrote down on paper has become the favorite of the people, and countless people take money to ask for it!

Qin Dynasty.

Qin Shi Huang watched the video on the canopy, and he was shocked!

He didn't expect that the cultivation of crops would be so exquisite.

You must know that in his time, the people were more slash-and-burn.

As for fertilizing food, no one does it, except for a very few people who do it!

And in their time, all they piled up was organic fertilizer, although it was able to make those plants absorb fertilizer, but the effect was very slow!

It is precisely because of this video that Qin Shi Huang realized that there was so much attention to growing food.

If he wants to have high-yield grain, he needs to do what he says in the sky!

And the so-called agricultural technology also needs someone to study.

Thinking of this, Qin Shi Huang reminded him of the children of peasant families who taught knowledge in the Hundred Academies.

Although they are small sects in the Hundred Academies, they have a lot of agricultural knowledge.

If it were up to them to study agriculture, it would be a good fit.

So Qin Shi Huang summoned the head of the peasant family and instructed him to study how to grow crops to be more productive, as well as how to prevent crop diseases!

Even in order to facilitate their research, the peasant family was separated from the hundred colleges, and a separate academy was established like the Mo family!

When the leader of the peasant family heard Qin Shi Huang's order, he was very excited!

Although his sect has existed since the Spring and Autumn Period and the Warring States Period, it has not been taken seriously.

The ideas of their school and the various methods of agricultural cultivation have not been carried forward, and now Qin Shi Huang's attention to them has made them have more illusions about the future!

But they knew that if they couldn't meet Qin Shi Huang's requirements, the final result would be to knock down the mortal dust from the clouds!

The leader of the peasant family did not care about this worst knot, and in his opinion, the canopy had given them a great deal of knowledge, and even taught them how to make soil and fertilizer.

If they can't manage agriculture well in the future, then how can they have the face to face their ancestors!

However, their first task now is to test whether the soil fertilizer on the canopy has any effect.

If it works, how to solve it? It doesn't work, how can it be solved?

The other sects of the Hundred Academies were full of jealousy when they heard that the peasant family had also been set up by Qin Shi Huang alone!

The Mohist school set up a separate academy, which in their opinion was the ability of others.

They knew that after the appearance of the canopy, it was not easy for the children of the Mo family, and they also knew deeply that these children of the Mo family had changed to Daqin!

But what did the children of this peasant family do? It was also valued by Qin Shi Huang!

No matter how much it is said in the canopy that grain is the foundation of the country, in their opinion, Qin Shi Huang's reward to the peasants is too generous!

However, he thought of the Spring and Autumn Period and the Warring States Period, because of the suffering of hunger without food, they were silent.

After all, food is the foundation of the country, and they do not have the ability to study agriculture, and there is no reason to oppose the independent establishment of colleges by farmers because they are small sects.

What's more, it was Qin Shi Huang who used the peasants to establish the academy alone, and they didn't have the courage to oppose it!

However, they also discovered the law in it, and understood that only if their own school was useful to Great Qin, they would be reused by Qin Shi Huang and let their school establish a separate academy.

So they began to work hard, hoping that their school would one day establish a separate academy.

(End of chapter)