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The environmental impact of long-acting nitrogen fertilizers produced from dicyandiamide: A comprehensive analysis
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Published Time:
2025-01-02
Reducing water pollution: Dicyandiamide can inhibit the transformation of ammonium nitrogen to nitrate nitrogen, reducing the possibility of nitrate nitrogen loss with water flow. After nitrate nitrogen enters the water body, it will cause eutrophication of the water body and trigger a series of environmental problems such as excessive algae reproduction. The use of this long-acting nitrogen fertilizer can effectively reduce the amount of nitrogen leaching into the water body, which is of positive significance to the protection of surface water and groundwater quality.
Environmental Impact of Dicyandiamide-Based Long-Acting Nitrogen Fertilizers: A Comprehensive Analysis
The use of dicyandiamide-based long-acting nitrogen fertilizers has both positive and negative environmental impacts.
From a positive perspective:
- Reduced water pollution: Dicyandiamide inhibits the conversion of ammonium nitrogen to nitrate nitrogen, reducing the possibility of nitrate nitrogen loss with water flow. Nitrate nitrogen entering water bodies causes eutrophication, leading to excessive algae growth and a series of environmental problems. Using this type of long-acting fertilizer can effectively reduce the amount of nitrogen leaching into water bodies, which is beneficial for protecting the water quality of surface water and groundwater.
- Reduced greenhouse gas emissions: Because it reduces the denitrification process of nitrogen in the soil, it correspondingly reduces the emission of nitrous oxide (a greenhouse gas). During denitrification, microorganisms produce nitrous oxide in the process of converting nitrate nitrogen into nitrogen gas.
From a negative perspective:
- Dicyandiamide residue risk: If dicyandiamide does not decompose completely in the soil, there may be some residue. Although dicyandiamide has low toxicity, a large amount of residue may also affect the microbial community in the soil, interfering with the normal function of the soil ecosystem.
- Production process pollution: If environmental protection measures are not in place during the production of dicyandiamide itself, pollutants such as wastewater and waste gas will be produced. For example, the production process may emit waste gas containing ammonia and cyanide, and wastewater contains high concentrations of organic matter and ammonia nitrogen, which will pollute the surrounding environment.
Keywords:
Dicyandiamide,soil
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