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With the high nitrogen level is there any possibility of manufacturing nitrogenous fertiliser.

Fall 2012, No. 3

WHERE DOES NITROGEN FERTILIZER COME FROM?

Nitrogen is one of the most widely distributed elements in nature since it is the most abundant gas in the atmosphere. But N is not found in mineral forms like P or K, but is largely present in organic compounds. When it is present in the soil, it is subject to many complex biological transformations that make it challenging to manage.

Nitrogen is essential for many metabolic processes in plants and animals. Perhaps the best-known role of N is in forming amino acids, which are the building blocks for protein. The human daily protein requirement ranges between 40 to 70 grams, depending on gender, age, and size.

Since the Haber-Bosch process for synthesizing N fertilizer was developed early in the 20th century, it’s importance in maintaining the global food supply has rapidly grown. It is estimated that half of the food produced now in the world is supported by the use of N fertilizer. Another way to look at this is that inside every cell, protein, or DNA molecule in your body, on average half of the N is a product of the Haber-Bosch process from a N fertilizer factory.

All N fertilizer begins with a source of hydrogen gas and atmospheric N that are reacted to form ammonia. The most-used source of hydrogen is natural gas (methane). Other sources of hydrogen, such as coal, are used in some regions. After hydrogen and N are combined under conditions of high temperature and pressure to form ammonia, many other important N-containing fertilizers can then be made. Urea is the most common N fertilizer, but there are many excellent N fertilizers that can be made from ammonia. For example, some ammonia is oxidized to make nitrate fertilizer. This same conversion of ammonia to nitrate takes place in agricultural soils through the microbial process of nitrification.

Because the production of hydrogen gas required for the synthesis of ammonia largely comes from natural gas, the price of this primary feedstock is the major factor in the cost of ammonia production. Ammonia factories sometimes close or open in various parts of the world in response to fluctuating gas prices. Higher energy costs always translate into higher prices for all N fertilizers.
There are a number of organic sources of N that are commonly used to fertilize crops. But remember that much of the N in animal manure, composts, and biosolids come from crops that received applications of fertilizer N. Therefore, the N in many organic fertilizers originated as inorganic N fertilizer.
Source
https://www.ipni.net/.../fe44a1a01b8e627606257a69007205ce!OpenDocu