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Long-term consequences of nitrogen fertilizer effluent discharge into the soil include
1. Eutrophication: High levels of nitrogen in the soil can lead to algal blooms and eutrophication of water bodies. This can result in oxygen depletion, fish kills, and contamination of drinking water.
2. Soil acidification: Nitrogen fertilizers can acidify the soil, which can damage crops and release toxic metals into the environment.
3. Groundwater contamination: Nitrogen fertilizers can leach into groundwater, contaminating drinking water sources.
4. Reduced crop yields: Excessive nitrogen fertilization can actually reduce crop yields by inhibiting root growth and promoting disease.
5. Climate change: Nitrogen fertilizers contribute to climate change by producing greenhouse gases, such as nitrous oxide.
6. Biodiversity loss: Nitrogen pollution can disrupt natural ecosystems and lead to a loss of biodiversity.