1、Derivation of human health and odor risk control values for soil

To accurately assess the risk of ammonia nitrogen in contaminated sites, this study applied a retired nitrogen fertilizer plant site to conduct a refined risk assessment of ammonia nitrogen using a PRA tool based on human health and odor, innovatively, the Kd and R was introduced.

2、Types of Nitrogen Fertilizers: Complete Guide for Crops & Soil

Learn the main types of nitrogen fertilizers, their benefits, applications, and best practices to improve crop yield and nitrogen use efficiency.

3、Types and Uses of Nitrogen Fertilizers for Crop Production

Table 1 lists the various nitrogen fertilizers commonly used for agronomic crops in Indiana. Shown for each fertilizer material is the percent and form of nitrogen it contains and its recommended uses.

4、Complete Guide to Types of Nitrogen Fertilizer and Their Benefits

Urea (CO (NH2)2): Contains 46% nitrogen, making it the most concentrated solid nitrogen fertilizer. Ammonium Nitrate (NH4NO3): Offers 33-34% nitrogen and provides both ammonium and nitrate forms. Ammonium Sulfate ( (NH4)2SO4): Contains 21% nitrogen and 24% sulfur, aiding sulfur-deficient soils.

5、Ammonium Fertilizers

Ammonium fertilizers refer to a type of fertilizer that contains ammonium ions, which can include various forms such as ammonium nitrate and ammonium phosphates.

Nitrogen Fertilizer

The major nitrogen (N) fertilizers are: ammonium nitrate (34% N), urea (46% N), anhydrous ammonia (82% N), and urea–ammonia nitrate mixtures (ammonium nitrate and urea dissolved in water containing 28–32% N).

Low

Here we examine the global N-fertilizer supply chain and analyse context-specific trade-offs of low-carbon ammonia production pathways.

Nitrogen Fertilizers: Types, Benefits, And Application Tips

Nitrogen fertilizers typically come in one of these forms: nitrate (NO3), ammonia (NH3), ammonium (NH4), or urea (CH4N2O). Every form has its own unique properties that dictate the specific conditions and methods for using it.

types of nitrogen fertilizers

Understanding the various types of nitrogen fertilizers available can greatly enhance a farmer's decision-making process. Here’s a detailed exploration of the different types of nitrogen fertilizers, interspersed with insights from industry experts.

Fertilizers: Nitrogen Fertilizers

As discussed, the primary forms of nitrogen found in nitrogen fertilizers are ammonium, nitrate, and urea or combinations thereof (Section 8.2). The potential is greatest with urea and fluids containing urea such as UAN.

Nitrogen fertilizers are essential nutrients for plant growth, promoting development and increasing crop yields. Among the many types of nitrogen fertilizers, some inherently emit an ammonia odor. Below are common examples of such fertilizers:

1. Urea Urea is an organic nitrogen fertilizer produced by reacting ammonia gas with carbon dioxide. It appears as white, ammonia-scented granules and is high in nitrogen content, suitable for various crops.

2. Ammonium Nitrate Ammonium nitrate is an inorganic nitrogen fertilizer synthesized from ammonia gas and water vapor. It forms white, ammonia-scented crystals and is widely used for its high nitrogen content across diverse crops.

3. Nitrogen-Based Compound Fertilizer This fertilizer combines nitrogen, phosphorus, and potassium. It has an ammonia odor, typically appearing as black or brown granules, and enhances crop yield and quality.

4. Ammonia Water A colorless, ammonia-scented aqueous solution of ammonia, primarily used in agricultural irrigation to provide nitrogen nutrition for plants.

5. Ammonium Sulfate An inorganic nitrogen fertilizer formed by reacting ammonia with sulfuric acid. It appears as white, ammonia-scented crystals and is suitable for crops requiring controlled nitrogen application.

6. Diammonium Phosphate A compound fertilizer containing nitrogen, phosphorus, and potassium. It has an ammonia odor, appears as white crystals, and improves crop yield and quality.

7. Monoammonium Phosphate A compound fertilizer with nitrogen, phosphorus, and potassium. It emits an ammonia smell, appears as white crystals, and supports diverse crop growth.

8. Triammonium Phosphate A compound fertilizer rich in nitrogen, phosphorus, and potassium. Its ammonia odor and white, crystalline form make it effective for boosting crop productivity.

9. Ammonium Chloride An inorganic nitrogen fertilizer produced by reacting ammonia with chlorine gas. It forms white, ammonia-scented crystals and is used for crops needing reduced nitrogen intake.

10. Ammonium Carbonate A compound fertilizer containing nitrogen, phosphorus, and potassium. It has an ammonia odor, appears as white crystals, and enhances crop growth and quality.

These ammonia-scented nitrogen fertilizers are widely applied in agriculture to provide essential nitrogen nutrition, improving crop yields and quality. proper dosage is critical to avoid issues like soil salinization due to excessive use.