Write down the formula of the following:
Sindri fertilizer.

Hint: As we know that agriculture is important stuff to live. In India as well as foreign, the farmer uses manure to get a good production. And it also gives nutrition and growth to the plant. This manure can be natural or artificial.

Complete step by step answer:
Fertilizer - A manure enhances the capability of producing good quality and quantity of product. As we discuss above fertilizer has two types that are natural and artificial.
Natural fertilizer - It is made of cow dung cakes, dry leaves, and waste from the kitchen.
Artificial fertilizer - It is produced in the industry by doing a chemical reaction. Nitrogen fertilizer starts increasing in ${20^{th}}$ century.
In India, Sindri is the fertilizer unit that was established in around $1944$, It is in the Jharkhand Dhanbad district. In this plant, Ammonium Sulfate production started in $1951$, and Urea in $1959$.
Ammonium Sulfate - It is a type of salt that is mainly used to fertilize the soil. It contains $24\% $ sulfur and $21\% $ nitrogen. It is used for alkali soil, in the laboratory to purify protein, to treat drinking water.
Here, we will see the formula of Sindri fertilizer. It is a kind of nitrogenous fertilizer that is able to provide nitrogen to the plant.
\[N{H_3} + {H_2}O \to N{H_4}OH\]
$2N{H_4}OH + C{O_2} \to {(N{H_4})_2}C{O_3} + {H_2}O$
${(N{H_4})_2}C{O_3} + CaS{O_4} \to {(N{H_4})_2}S{O_4} + CaC{O_3}$
Now, we got the formula of Sindri fertilizer - ${(N{H_4})_2}S{O_4}$

Note:
Alkali soil - It is base soil that pH is greater than $8.5$. Fertilizer Corporation of India - It is under the department of fertilizer of the ministry of chemical and fertilizer. The company starts at $1961$, and it's headquartered in Noida, India. Ministry of chemical and fertilizer - In it, three departments are included that is the department of fertilizer, the department of pharmaceuticals, department of chemical and petrochemical.