I make a popular science video and all the emperors learn from it!

The greatest value of phosphorus is actually the manufacture of phosphate fertilizer!

It just so happened that in the previous rush answer, several emperors were rewarded with a ton of fertilizer.

Qin Dynasty.

Ying Zheng suddenly realized!

The widow remembered that the word phosphorus was written on the fertilizer he had gotten earlier. "

Now look at the light curtain.

He learned that the main raw material for chemical fertilizer is phosphorus.

And after he got the fertilizer, he quietly let people use a bag.

The results are amazing!

A crop that was fertilized was a whole lot taller than a normally grown crop!

The plants are thicker and produce more ears!

And not easily sick ...

At that time, he ordered people to study the source of chemical fertilizers.

But only now did he fully understand the reason!

Ying Zheng took a deep breath, he had nine bags of fertilizer left, and he was desperate to increase his reserves!

For the first time, he thought of the peasant family among the hundred sons.

Peasant people, maybe there is a way.

Yingzheng immediately ordered to summon the head of the peasant family into the palace.

And at this time, the peasant family looked ecstatic!

Among them, an old man, who was the head of the peasant family, waved his hand and commanded:

"Those who are literate, quickly write down all the words on the light curtain!"

"The symptoms of phosphorus deficiency in so many crops will take years for future generations to come to an end. "

"And the way of fertilization, and how much fertilizer is applied. "

"These are priceless treasures. "

"Hurry up, write two more copies!"

With that, he took a sip of tea.

He said to himself: "Sea bird droppings, animal bones, fish bones, um... It seems that there is an opportunity to collect a little more. "

Han dynasty.

Liu Bang stood up directly, his eyes full of shock.

The fertilizer that was rewarded to him has not been used yet.

It's not that I don't want to use it, but I don't want to use it.

After all, it's only ten bags, and you can't send them to farmers, right?

He uses it himself, and also considers which crop to use on it, which effect is best.

Dragged and dragged and simply put the fertilizer in the treasury to eat ashes.

But now, he sees hope!

Let the hope of the Han Dynasty increase the crop production again!

No matter how high the yield of potatoes, sweet potatoes and corn is, it is also the yield after fertilization and insect control in later generations.

Really placed in the Han Dynasty, the output can have 30% of popular science, which is already very good!

Liu Bang is very self-aware of this.

He looked at Xiao He, as the "logistics manager" of the entire Han Dynasty, this matter must be done by professional people.

Liu Bang said with a smile: "Xiao He, the matter of collecting phosphate fertilizer is arranged by you." "

Xiao He, who had been standing, heard this, bent down and replied, "Your Majesty, the minister has an order." "

Ming dynasty. (If you read a violent novel, go to Feilu Novel Network!)

Zhu Yuanzhang looked at the light curtain and couldn't help but widen his eyes.

Chemical fertilizer!

Good thing to increase food production!

At present, the biggest dilemma in the Ming Dynasty is the lack of people and food!

Once there is enough food, the rate of population recovery is very impressive.

The effect of chemical fertilizers, he has personally experimented.

An example of this is corn in a vegetable field, which was half dead when it was first planted, but now it is a man tall!

Bullish, several corn cobs can be produced on one corn plant!

Every time Zhu Yuanzhang finishes his official duties, he likes to go to the vegetable field because he wants to see corn.

"Natural phosphate fertilizer...," Zhu Yuanzhang muttered.

He quickly figured out what the problem was!

Sea bird droppings, animal bones, and fish bones are difficult to collect.

The key is not enough!

He knows best how much land there is in the Ming Dynasty.

It is to kill all the guano and animals on the coast of the entire Ming Dynasty, take the bones, and fish all the fish to take the bones. []

It's still not enough!

Zhu Yuanzhang could only look at chemical phosphate fertilizer.

Reason told him that the chemical fertilizer used by future generations must be the second type!

Tell us where the materials for making phosphate fertilizer are, and we beg you. Zhu Yuanzhang prayed in his heart.

At the same time, he also understood.

Why phosphorus is the tenth most precious natural resource?

That's how it should be if it can increase crop yields alone!

[Popular science continues.] 】

[Phosphorus can also be used in the manufacture of: phosphoric acid, pyrotechnics, pesticides, phosphor bronze, etc.] 】

【Applications:】

[White phosphorus is mainly used for the production of phosphorus compounds such as thermal phosphoric acid, phosphorus trichloride, phosphorus oxychloride, phosphorus pentasulfide and other phosphorus compounds and raw materials for the manufacture of organophosphorus pesticides and rodenticides such as trichlorfon, methamidophos, amidine, pine borer, dichlorvos and other rodenticides. 】

[A small amount is used to produce red phosphorus and phosphorus pentoxide. 】

[Militarily used in the manufacture of incendiary bombs, tracer bombs, smoke bombs and signal flares. It is also used in the production of phosphorus ferroalloy and pharmaceutical, organic raw materials and other industries. 】

[Red phosphorus is used in the preparation of semiconductor compounds and as a dopant for semiconductor materials, and can be used for flame retardant polyhydrocarbons, polystyrene, polyester, nylon, polycarbonate, polyoxymethylene, epoxy resin, unsaturated resin, rubber, textiles, etc. 】

[The flame retardant of oxygen-containing polymers such as polyethylene terephthalate, polycarbonate and phenolic resin is particularly effective.] Compared with other phosphorus-based flame retardants, red phosphorus of the same mass can produce more phosphoric acid, which can be covered on the surface of the flame retardant material, and can accelerate dehydration and carbonization on the surface of the material, forming a liquid film and carbon layer to isolate the external oxygen, volatile combustibles and heat from the internal polymer matrix and interrupt the combustion. 】

[Because the amount of red phosphorus is small when meeting the same flame retardant requirements, and the melting point of red phosphorus is high and the solubility is poor, some physical properties of red phosphorus flame retardant polymers are better than those of similar polymers prepared with general flame retardants. 】

[Red phosphorus and halogenated flame retardant can be used together to improve flame retardant efficiency. 】

【...... and more].