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  2. Nutrient management - Wikipedia

    en.wikipedia.org/wiki/Nutrient_management

    Nitrogen fertilizer being applied to growing corn in a contoured, no-tilled field in Iowa.. Nutrient management is the science and practice directed to link soil, crop, weather, and hydrologic factors with cultural, irrigation, and soil and water conservation practices to achieve optimal nutrient use efficiency, crop yields, crop quality, and economic returns, while reducing off-site transport ...

  3. Nitrogen and Non-Protein Nitrogen's effects on Agriculture

    en.wikipedia.org/wiki/Nitrogen_and_Non-Protein...

    When discussing the application of nitrogen in agriculture, it is essential to consider the sources of nitrogen used. Synthetic nitrogen fertilizers, such as ammonium nitrate and urea, are commonly applied to crops to replenish soil nitrogen levels and enhance crop productivity [3] These fertilizers provide readily available nitrogen for plant ...

  4. Nitrate vulnerable zone - Wikipedia

    en.wikipedia.org/wiki/Nitrate_vulnerable_zone

    One of the primary causes of nitrate pollution is the use of nitrogen fertilizers and application of manure to agricultural fields, which stimulates crop production but also contributes to nutrient pollution due to nitrate leaches from soil during heavy precipitation events. [1]

  5. Human impact on the nitrogen cycle - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_the...

    NO 3 − may also be denitrified by bacteria, producing N 2, NO x, and N 2 O. Estimated nitrogen surplus (the difference between inorganic and organic fertilizer application, atmospheric deposition, fixation and uptake by crops) for the year 2005 across Europe. Human impact on the nitrogen cycle is diverse.

  6. Environmental impact of agriculture - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    For example, the manufacture and use of nitrogen fertilizer contributes around 5% of all global greenhouse gas emissions. [30] Livestock farming is a major source of greenhouse gas emissions. [31] At the same time, livestock farming is affected by climate change. Farm animals' digestive systems can be put into two categories: monogastric and ...

  7. Leaching (agriculture) - Wikipedia

    en.wikipedia.org/wiki/Leaching_(agriculture)

    The Food and Agriculture Organization of the United Nations (FAO) estimates world demand for nitrogen fertilizers will increase by 1.7% annually between 2011 and 2015. An increase of 7.5 million tonnes. Regional increases of nitrogen fertilizer use are expected to be 67% by Asia, 18% by the Americas, 10% by Europe, 3% by Africa, and 1% by ...

  8. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    The use of artificial and industrially-applied fertilizers has caused environmental consequences such as water pollution and eutrophication due to nutritional runoff; carbon and other emissions from fertilizer production and mining; and contamination and pollution of soil.

  9. Agricultural pollution - Wikipedia

    en.wikipedia.org/wiki/Agricultural_pollution

    Diffuse source pollution from agricultural fertilizers is more difficult to trace, monitor and control. High nitrate concentrations are found in groundwater and may reach 50 mg/litre (the EU Directive limit). In ditches and river courses, nutrient pollution from fertilizers causes eutrophication. This is worse in winter, after autumn ploughing ...

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