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[Chemical Knowledge]：Properties and Uses of Fertilizers

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Fertilizers have important properties and uses in the field of raw materials for chemical production. Fertilizers mainly refer to substances used to promote plant growth and development. These substances provide plants with necessary nutrients, improve soil quality, and increase crop yield and quality. This article will discuss the nature and use of fertilizer in detail.

The nature of 1. fertilizers

1. Chemical properties
fertilizers usually have specific chemical properties. According to their composition and manufacturing process, they can be divided into two categories: inorganic fertilizers and organic fertilizers. Inorganic fertilizers are mainly made of minerals, such as nitrogen, phosphorus, potassium and other elements of the compound. Organic fertilizers are mainly derived from organic substances such as animal and plant residues and excreta.

2. Physical Properties The physical properties of the
fertilizer include particle size, shape, density, solubility, etc. These properties have important implications for the storage, transport and use of fertilizers. Different types of fertilizers have different application methods according to their physical properties. The use of

2. fertilizer

1. Provide nutrients The main purpose of
fertilizer is to provide plants with the necessary nutrients. Plant growth needs to absorb a variety of nutrients in the soil, such as nitrogen, phosphorus, potassium and so on. Fertilizers promote the growth and development of plants by supplementing these nutrients.

2. Improving soil quality
fertilizers can improve soil quality and increase soil fertility. The organic matter in some fertilizers can increase the organic matter content of the soil and improve the water retention capacity and aeration of the soil. At the same time, fertilizer can adjust the pH of the soil to make it suitable for plant growth.

3. Improve crop yield and quality The use of
fertilizers can improve the yield and quality of crops. Through the rational application of fertilizer, it can meet the needs of crops for nutrients, promote their growth and increase production. At the same time, fertilizer can also improve the quality of crops, such as increasing the content of sugar, vitamins and other nutrients in the fruit.
The types and application methods of
3. fertilizers

1. Nitrogen fertilizer
Nitrogen fertilizer is mainly used to supplement the nitrogen element in the soil and promote the growth of plant branches and leaves. Commonly used nitrogen fertilizer has urea, ammonium bicarbonate and so on. Nitrogen fertilizer can be applied to the soil by means of spreading and irrigation.

2. Phosphate fertilizer
Phosphate fertilizer is mainly used to supplement phosphorus in the soil and promote the development of plant roots and seeds. Commonly used phosphate fertilizer has superphosphate, calcium magnesium phosphate fertilizer, etc. Phosphate fertilizer is generally applied by spreading or mixing with organic fertilizer.

3. Potassium fertilizer
Potassium fertilizer is mainly used to supplement potassium in soil and improve plant resistance and fruit quality. Commonly used potassium fertilizer is potassium chloride, potassium sulfate and so on. Potash can be applied to the soil by spreading or irrigation.

4. compound fertilizer
compound fertilizer contains a variety of nutrients, which can meet the needs of plants for different nutrients. Compound fertilizer can be formulated according to the needs of crops and soil conditions to improve the efficiency of fertilizer use. The development trend of

4. fertilizer

With the continuous development of agricultural technology, fertilizer is also constantly improving and innovating. The future development of fertilizers will pay more attention to environmental protection, high efficiency and versatility. For example, new fertilizers such as biological fertilizers and slow-release fertilizers will play a greater role in agricultural production, increasing the yield and quality of crops while reducing the impact on the environment.

In short, fertilizer plays an important role in the field of chemical production raw materials, and it is of great significance to promote plant growth and improve crop yield and quality. In the future development, we need to pay more attention to the environmental protection and efficiency of fertilizers to promote the sustainable development of agricultural production.

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