1、Keeping Fertilizer in the Ground and Out of the Air

Take fertilizer for example: If not applied properly, up to 40 percent of urea fertilizer can escape into the atmosphere as ammonia gas, through a process called volatilization.

2、Management to Minimize Nitrogen Fertilizer Volatilization

Urea-based fertilizers, anhydrous ammonia and aqua ammonia have high volatilization potential because they can locally increase soil pH suficiently to increase ammonium conversion to ammonia.

3、Nitrogen volatilisation losses ‐ how much N is lost when

Fertiliser nitrogen can be lost from the soil surface as ammonia gas via the process of volatilisation. Just how much is lost depends on a range of factors, including; soil moisture, temperature, pH, naturally‐occurring lime in the soil, ground cover, wind, soil clay %, and fertiliser type.

Volatilization: Understanding Nitrogen Loss

Most of the nitrogen volatilization typically occurs in the first seven to fourteen days after a top-dress fertilizer application, if moisture is present to start the conversion of urea to ammonia, but losses may extend for a longer time depending on conditions.

Management Management of of Urea Urea Fertilizer Fertilizer to to

While all topdressed ammonia- and ammonium-based N fertilizers can volatilize, the potential is greatest with urea and fluids containing urea such as urea-ammonium nitrate (UAN; 28-0-0 or 32-0-0).

The Science Behind Volatilization in Soil Management

In the context of soil management, volatilization primarily involves the loss of nitrogen compounds, especially ammonia (NH₃), from fertilizers applied to soil.

What Is Volatilization in Soil?

From the role of nitrogen and carbon in volatilization to the innovative strategies being developed to optimize soil fertility, we’ll cover it all.

Field evaluation of nitrogen volatilization loss during fertigation

Nitrogen volatilization loss occurs in the process of mixing and storage of fertilizer in the fertilizer tank but is also most likely to occur in the process of scattering of fertilizer solution in the atmosphere.

How Long Can Fertilizer Sit on a Yard Without Water?

When the air temperature exceeds 85 degrees Fahrenheit, fertilizers left on the ground begin to volatilize and the risk of fertilizer burn increases. This process causes the nitrogen in your fertilizer to escape into the atmosphere over a period of time.

Rhizosphere response and resistance to fertilization

The response slopes of rhizosphere and bulk soil properties to fertilization were below 1.0, indicating that the rhizosphere had greater resistance, especially under organo-mineral fertilizer ...

Whether fertilizers volatilize after being sprinkled on the ground is a question that intersects agricultural science, soil science, and environmental science. Fertilizer volatilization refers to the gradual loss of active ingredients during the decomposition or transformation of fertilizers in the soil. This process impacts both agricultural production and the environment, making it crucial to understand its mechanisms and influencing factors. Proper knowledge of fertilizer volatilization is essential for rational fertilizer use, soil protection, and crop yield optimization.

I. The Nature of Fertilizer Volatilization Fertilizer volatilization involves the gradual reduction of active ingredients due to chemical decomposition or transformation in the soil. The rate of volatilization depends on multiple factors, including fertilizer type, soil composition, climatic conditions, and water availability. Generally, volatilization occurs more rapidly under unfavorable conditions such as high temperatures and drought.

II. Causes of Fertilizer Volatilization The primary causes include:

1. Fertilizer Type: Different fertilizers exhibit varying volatilization rates. For example, urea and ammonium bicarbonate volatilize quickly, while potassium sulfate does so more slowly.
2. Fertilizer Quality: Certain components, such as chloride ions in ammonium chloride, accelerate volatilization and reduce utilization efficiency.
3. Soil Type: Sandy soils promote faster volatilization compared to clay soils.
4. Climatic Conditions: Temperature and humidity significantly influence volatilization rates, with higher temperatures and dryness accelerating the process.
5. Water Availability: Insufficient moisture reduces dissolution and enhances volatilization, as water aids in nutrient absorption by the soil.

III. Impacts of Fertilizer Volatilization Volatilization affects both agriculture and the environment:

1. Agricultural Production: Reduced fertilizer efficiency leads to resource waste and potential soil acidification, which degrades soil structure and fertility.
2. Environmental Effects: Volatile gases like ammonia (toxic to human respiratory systems) and leached nutrients can contaminate groundwater, compromising drinking water safety.

IV. Mitigating Fertilizer Volatilization To minimize volatilization, the following measures are recommended:

1. Select Appropriate Fertilizers: Choose varieties suited to local conditions, avoiding highly volatile options.
2. Optimize Fertilizer Use: Improve application techniques and soil management to enhance nutrient absorption.
3. Adjust Application Methods: Avoid over-fertilization, especially excessive nitrogen, and apply at optimal times.
4. Improve Soil Health: Increase organic matter to boost soil buffering capacity and fertility.
5. Environmental Protection: Implement gas emission control measures to reduce health and ecological risks.

understanding and addressing fertilizer volatilization—a multidisciplinary issue—is vital for sustainable agriculture, soil preservation, and crop productivity.