1、Hazards of nitrogen fertilizers and ways to reduce nitrate accumulation

In modern agriculture, farm produce accumulates a lot of nitrates that can reach toxic levels owing to the unfair use of nitrogen fertilizers, cultural methods, farming policies in multiple areas of the world, thereby increasing concerns about the availability of hygienic food supply and environmental hazards.

2、Nitrogen Fertilization. A Review of the Risks Associated with the

Nearly half of N fertilizer input is not used by crops and is lost into the environment via emission of gases or by polluting water bodies. It is essential to achieve production levels, which enable global food security, without compromising environmental security.

3、Crop responses to nitrogen overfertilization: A review

High nitrogen fertilization rates are detrimental for crop yield. Several quality parameters in fruits and vegetables are negatively affected. Law enforcement is restricting the content of N in certain vegetables.

Excessive use of nitrogenous fertilizers: an unawareness causing

In this short review, the authors have tried to create awareness among general public, farming community, health practitioners, and agricultural scientists for the risk involved with excessive use of nitrogen fertilizers to human health.

(PDF) Positive and Negative Impact of Nitrogen Fertilizer on Soil

This study found that excessive nitrogen fertilization had negative impact on soil health factors such as bulk density increment and carbon content decline through deeper profiles.

The effects of the combined application of organic and inorganic

This study examined the source control of nitrogen and phosphorus loss mechanisms through reducing fertilizer levels and combining organic and inorganic fertilizers in wheat‒rice double-cropping ...

Why Choose High Nitrogen Fertilizers?

The disadvantage of dry fertilizers that are high in nitrogen is that they may sit on the surface level, which increases the risk for the volatile compounds to be evaporated into the air.

Nitrogen Use in Agriculture : A Growing Threat to Health and the

Excessive nitrogen use has far-reaching consequences for both the environment and human health. Nitrogen pollution degrades air, water, and soil quality, contributes to biodiversity loss, and accelerates climate change.

Towards precise nitrogen fertilizer management for sustainable

Excessive N fertilizer application has emerged as a key challenge, with over 50% of applied N lost from the plant-soil system, resulting in significant resource waste and environmental degradation (Ladha et al., 2005; Yan et al., 2020).

The nitrogen fertilizer conundrum: why is yield a poor determinant of

The application of nitrogen (N) fertilizer both underpins high productivity of agricultural systems and contributes to multiple environmental harms. The search for ways that farmers can optimize the N fertilizer applications to their crops is of global significance.

Nitrogen fertilizer is a critical agricultural input that provides essential nutrients for plant growth and development. high-concentration nitrogen fertilizers are unsuitable for use due to the following reasons:

1. Soil Pollution: High-concentration nitrogen fertilizers are rapidly absorbed by the soil, leading to excessive nitrogen accumulation. Long-term use can cause soil acidification, salinization, and other issues. These problems not only hinder normal plant growth but also negatively impact soil microbial communities, reducing soil fertility.

2. Environmental Pollution: Excessive nitrogen can leach into groundwater via rainfall, causing eutrophication of water bodies. This harms aquatic ecosystems and poses health risks to humans. Additionally, nitrogen compounds may enter the atmosphere through volatilization, contributing to acid rain. Acid rain impairs plant photosynthesis, weakens growth, and reduces crop yields.

3. Decline in Crop Quality: High-concentration nitrogen fertilizers promote rapid, yet weak, plant growth characterized by thin stems, yellowing leaves, and reduced resilience. Excessive nitrate accumulation in crops lowers their nutritional quality. Over-reliance on nitrogen also inhibits root development, compromising water and nutrient uptake efficiency.

4. Low Fertilizer Efficiency: Rapid nitrogen absorption disrupts the balance of other soil nutrients, limiting plants’ ability to utilize available resources. High concentrations of nitrogen may also suppress soil microbial activity, further reducing fertilizer effectiveness.

5. Poor Economic Viability: While high-concentration nitrogen fertilizers may boost crop yields, their environmental and quality-related drawbacks offset economic benefits. Long-term use increases agricultural costs and potentially leads to losses from environmental degradation, making them an unsustainable investment.

6. Ecological Imbalance: Excessive nitrogen disrupts soil ecosystems by reducing microbial diversity and stability. Soil microorganisms play a vital role in decomposing organic matter and cycling nutrients. Disruption of these processes undermines soil health and long-term ecological balance.

while high-concentration nitrogen fertilizers may increase crop production, their adverse environmental and agricultural impacts cannot be ignored. To achieve sustainable agriculture, it is crucial to apply nitrogen fertilizers in moderate amounts and optimize timing to minimize harm to ecosystems and crop quality.