What is the process of inorganic fertilizer production?

There was a German chemist named eustace Justus von Liebig, who liked chemistry since he was a child and was not interested in other subjects. At the age of 15, Justus von Liebig dropped out of school before finishing high school. /kloc-when he was 0/8 years old, he finally realized that if he wanted to be a chemist, he had to have a solid knowledge base so that he could study hard in college. After graduating from university, Justus von Liebig went to Paris Sorbonne University for further study, and obtained a doctorate in chemistry at 1824.

In his early twenties, Justus von Liebig became a promising young postdoctoral student in chemistry and returned to Germany.

As soon as he came back, he was highly valued by the government of the Principality of Hesse and was hired as a professor of chemistry at Giessen University. He began to rank among the first-class chemists in the world with unparalleled talent.

On the outskirts of the capital of the Principality of Hesse, there is a large area of farmland. Careful Justus von Liebig noticed that the crops in the suburbs were decreasing year by year, and the farmers' faces were covered with dark clouds and their brows were furrowed.

One day, Justus von Liebig came to the farmland in the suburbs, bent down and examined the farmland and soil carefully. "If we can add some nutrition to the land, won't the crops be harvested?" Justus von Liebig soliloquize, and seemed to be talking to farmers.

The farmer said jokingly, "sir, you don't understand this." We plowmen have been farming like this for generations. Your words will make a joke. "

Justus von Liebig doesn't care if he can joke. When he came back, he began to read a lot of books and newspapers, and found that farmers in China and India, ancient countries in the East, had been applying human and animal droppings to their land in order to harvest crops. Justus von Liebig clearly knows that this must be because manure contains ingredients that enrich the soil and enable crops to absorb the substances needed for growth. But this method can't be introduced to Europe, because people can't accept it conceptually.

Justus von Liebig often wondered: What is the lack of cultivated land? What is needed for the production of crops? Only by figuring out this question can we find its answer.

In order to find the answer, Justus von Liebig began a lot of experiments. In the experiment, he found that nitrogen, hydrogen and oxygen are indispensable substances for plant growth. Moreover, potassium, alkali, lime, phosphorus and other substances have certain effects on the growth and development of plants.

Knowing this, Justus von Liebig said to his assistants, "The next step is to develop synthetic fertilizers containing these inorganic salts and minerals."

/kloc-One day in 0/840, the chemistry laboratory in Justus von Liebig was filled with a joyful atmosphere, and the first batch of potash fertilizer and phosphate fertilizer in the world was born here. Justus von Liebig carefully scattered these shiny white inorganic fertilizers in the experimental field and paid close attention to the changes of crops.

But a few days later, a heavy rain came unexpectedly. The assistants found that fertilizer crystals quickly became liquid and penetrated into deep soil after being soaked in rain, while the roots of crops were mostly distributed in shallow soil. Sure enough, the harvest season arrived, and the crops in the experimental field did not increase significantly.

The experiment was unsuccessful; Some assistants are a little discouraged. Justus von Liebig said, "Don't lose heart, success comes from failure. We have to go further and turn them into water-insoluble substances, and maybe we will be close to success! "

So, everyone started a new exploration. This time, Justus von Liebig synthesized potassium and phosphoric acid crystals into water-insoluble salts, and added a small amount of ammonia to make the salt salty into white crystals containing nitrogen, phosphorus and potassium.

Finally, in a barren land, Justus von Liebig and his assistant mixed white crystals with clay and rock salt, applied them to the soil, and then planted crops.

After a while, the farmers were surprised to find that the abandoned land miraculously grew green crops, and the longer they grew, the stronger they became. Blink of an eye, ushered in the harvest season. The deserted land has achieved a bumper harvest, which is even better than the crops planted by farmers in fertile fields.

The news spread like wildfire, and Justus von Liebig became the most admired figure of German farmers. "Justus von Liebig fertilizer" is also widely used in agricultural production, benefiting mankind, and Justus von Liebig is called "the father of inorganic fertilizer".