1、Recent advances in the chemistry of nitrogen

Fertilizer application replaces the chemical components taken from soil by the growing plants and improves soil productivity. Despite the advantages of fertilizer, it can harm the environment if not used properly.

2、Recovering, Stabilizing, and Reusing Nitrogen and Carbon from Nutrient

This review describes detailed examples of such feedstocks and the methods required to concentrate and crystallize solid ammonium carbonates. The technologies currently proposed or utilized to stabilize ammonium carbonate materials in the environment are described in detail.

3、A Review of the Latest in Phosphorus Fertilizer Technology

Crucial to developing better fertilizers is critical evaluation of test results and how they relate to the goal of maximizing efficiency. This review discusses the most relevant research related to innovation of commercial P fertilizers.

4、Phosphorus Fertilization in Crop Production

Broadcasting and incorporating low rates of phosphate fertilizer is not as effective as placing phosphate with the seed or band­ing phosphate because of the likelihood of more rapid conversion to less available P compounds and insufficient contact with the small seedling root system.

Fertilizer Materials and Soil Nutrient Amendment

The basic calculation formula for liquid fertilizers is similar to solids, but the density of the liquid fertilizer must be known before calculating the amount of fertilizer to apply.

Interaction among Fertilizers (Compatibility)

When preparing fertilizer solutions for nutrigation , each component solubility must be considered in order to avoid possible precipitate . The following mixtures reduce solubility and form the following sedimentations.

Renewed interest in ammonium carbonates

According to Annex IX to the Gothenburg Protocol, European Parties are to prohibit the use of ammonium carbonate fertilisers (see page 64 of archived copy). No exception was made for coated or otherwise stabilised am-monium carbonate fertilisers.

Comprehensive Guide to Nitrogen, Phosphate, and Potassium Fertilizers

Chemical fertilizers are characterized by high nutrient content and fast effects, but they also have some limitations, such as potential negative impacts on soil structure. This article will introduces nitrogen fertilizers, phosphorus fertilizers, and potassium fertilizers first.

Fertilizer Mixing Law: Which agricultural fertilizers can be mixed?

Fertilizer blending stands as an effective strategy in modern agriculture, aiding in enhancing field yield and crop quality. Here are some key benefits of mixing fertilizers: Through blending fertilizers, multiple nutrients can be delivered to the plant simultaneously, saving time.

Types of Fertilizers Based on Chemical Composition and Their Use in

Ammonium Nitrate – A quick-release nitrogen fertilizer used for rapid growth. Superphosphate – A phosphorus-based fertilizer that helps with root development.

Both phosphate fertilizer and ammonium carbonate are commonly used compound fertilizers containing nitrogen (N), phosphorus (P₂O₅), and potassium (K₂O) in agricultural production. They play important roles in crop cultivation. The choice between the two depends on specific crops, soil conditions, and climatic environments. Below is a detailed comparison of these two fertilizers:

I. Phosphate Fertilizer

1. Composition and Characteristics: Phosphate fertilizer typically has a high phosphorus (P₂O₅) content, which is an essential nutrient for plant growth. It promotes root development, enhances disease resistance, and increases crop yields.

2. Application Methods: Phosphate fertilizer can be applied in various forms, such as solid granules, liquids, or powders. The dosage should be adjusted based on soil conditions and crop requirements to avoid nutrient loss or soil salinization due to overuse.

3. Suitable Crops: Phosphate fertilizer is suitable for all crops, especially those requiring high phosphorus levels, such as legumes, peanuts, and sugarcane.

4. Environmental Impact: Excessive use of phosphate fertilizer may lead to water eutrophication and soil acidification. proper control of application rates and avoidance of runoff are critical.

5. Cost Considerations: Due to its high phosphorus content, phosphate fertilizer is relatively more expensive. it remains cost-effective compared to nitrogen and potassium fertilizers.

II. Ammonium Carbonate

1. Composition and Characteristics: Ammonium carbonate is a nitrogen-rich fertilizer that also contains phosphorus (P₂O₅) and potassium (K₂O). It improves nitrogen uptake efficiency in crops and supports robust growth.

2. Application Methods: Ammonium carbonate is usually applied as solid granules by broadcasting or placement in furrows. Avoid mixing with acidic substances to prevent reduced efficacy.

3. Suitable Crops: Ammonium carbonate is suitable for all crops, particularly nitrogen-demanding ones like rice, maize, and wheat.

4. Environmental Impact: Overuse may cause soil acidification and groundwater contamination. Careful planning of application areas and avoiding concentrated dosages are recommended.

5. Cost Considerations: Ammonium carbonate is cheaper than phosphate fertilizer but more expensive than pure nitrogen fertilizers.

III. Comparative Analysis

1. Nutrient Ratios: Phosphate fertilizer is rich in phosphorus, ideal for phosphorus-hungry crops, while ammonium carbonate is nitrogen-dominant, suited for nitrogen-demanding crops.

2. Application Flexibility: Phosphate fertilizer offers versatile application methods, whereas ammonium carbonate requires careful placement due to its solid form.

3. Environmental Risks: Phosphate fertilizer poses risks of water pollution and soil acidification, while ammonium carbonate may acidify soils and contaminate groundwater. Environmental impacts must guide selection.

4. Cost-Effectiveness: Phosphate fertilizer is pricier, while ammonium carbonate is more budget-friendly. Cost efficiency should be evaluated based on crop needs.

Both phosphate fertilizer and ammonium carbonate have unique advantages and limitations. The choice depends on crop type, soil properties, and climate. For phosphorus-intensive crops, phosphate fertilizer is preferable; for nitrogen-intensive crops, ammonium carbonate is better. Additionally, rational fertilization practices should be followed to minimize environmental harm and maximize crop health.