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[Chemical Knowledge]：Properties and Uses of Nitrogen Fertilizer

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The nature and use of nitrogen fertilizer

1. the nature of nitrogen fertilizer

nitrogen fertilizer mainly refers to the compound containing nitrogen element, they have a variety of properties, these properties for the production, storage and use of nitrogen fertilizer have an important impact.

1. physical properties: the physical properties of nitrogen fertilizer include color, state, odor, solubility and melting point. Different nitrogen fertilizers have different physical properties. For example, urea is a white crystal with strong hygroscopicity, while ammonium nitrate is a colorless and transparent crystal with strong endothermic properties.
2. Chemical properties: The chemical properties of nitrogen fertilizers mainly refer to their reactivity, including reactions with acids, bases, oxygen and other compounds. For example, ammonium salts react with bases to give off ammonia, and urea can decompose into ammonia and carbon dioxide under acidic conditions.

2. the use of nitrogen fertilizer
The main use of
nitrogen fertilizer is to promote the growth of plants and improve the yield and quality of crops. This is because nitrogen is an important element that constitutes biological molecules such as proteins and nucleic acids, and plays an important role in the growth and development of plants.

1. Increase yield: The application of nitrogen fertilizer can increase the photosynthesis of plants and promote the growth and development of plants, thereby increasing the yield of crops. In some nitrogen-deficient soils, the application of nitrogen fertilizers can significantly increase crop yields.
2. Improving quality: The application of nitrogen fertilizer can improve the quality of crops, such as improving the protein content and taste of crops. At the same time, nitrogen fertilizer can also promote the early maturity of crops and improve the drought and cold resistance of crops.

3. nitrogen fertilizer production raw materials

nitrogen fertilizer production raw materials are mainly the following:

1. natural gas: natural gas is one of the main raw materials for the production of nitrogen fertilizer, ammonia through natural gas and further production of urea and other nitrogen fertilizer.
2. Coal: Coal is also one of the important raw materials for the production of nitrogen fertilizer. Syngas is prepared through coal gasification, transformation, purification and other processes, and further nitrogen fertilizer is produced.
3. Air: Nitrogen in the air is one of the important raw materials for the production of nitrogen fertilizer. Nitrogen is prepared by air separation technology, and then reacts with hydrogen to prepare ammonia, and further produce nitrogen fertilizer.

In summary, nitrogen fertilizer has an important position and role in the field of chemical production raw materials, and plays an important role in promoting plant growth and improving crop yield and quality. Different nitrogen fertilizers have different properties and uses, and need to be selected and used according to specific conditions. At the same time, it is necessary to pay attention to safety, environmental protection and other issues in the production process to ensure the smooth progress of production and the sustainable development of society.

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