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

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

    However, the excessive or inefficient use of nitrogen fertilizers can lead to environmental problems such as nitrogen leaching, runoff, and emissions of nitrogen oxides (NOx). [4] Nitrogen leaching occurs when nitrogen compounds, primarily nitrates , move through the soil profile and enter groundwater, potentially contaminating drinking water ...

  3. 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 ...

  4. Illinois Soil Nitrogen Test - Wikipedia

    en.wikipedia.org/wiki/Illinois_Soil_Nitrogen_Test

    Nitrogen is essential for plant development. Indeed, for crops that are destined to be food for farm animal or human consumption, incorporation of nitrogen into the crop is an important goal, since this forms the basis for protein in the human diet. Nitrogen is commonly present in soils in many forms, and there are many ways to measure this ...

  5. Organic fertilizer - Wikipedia

    en.wikipedia.org/wiki/Organic_fertilizer

    Grain meals can be made of corn gluten, alfalfa, cottonseed, or soybean. Most supply nitrogen and potassium, but soybean meal provides nitrogen and phosphorus. [27] When initially spread they can cause an increase in ammonia within the soil and burn seeds, it is recommended to use these after plants have developed, to ensure crop success.

  6. History of the Haber process - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Haber_process

    The history of the Haber process begins with the invention of the Haber process at the dawn of the twentieth century. The process allows the economical fixation of atmospheric dinitrogen in the form of ammonia, which in turn allows for the industrial synthesis of various explosives and nitrogen fertilizers, and is probably the most important industrial process developed during the twentieth ...

  7. Greenhouse gas emissions from agriculture - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions...

    For example, the manufacture and use of nitrogen fertilizer contributes around 5% of all global greenhouse gas emissions. [7] Livestock farming is a major source of greenhouse gas emissions. [8] At the same time, livestock farming is affected by climate change. Farm animals' digestive systems can be put into two categories: monogastric and ...

  8. Category:Nitrogen-fixing crops - Wikipedia

    en.wikipedia.org/wiki/Category:Nitrogen-fixing_crops

    Plants that contribute to nitrogen fixation include the legume family – Fabaceae – with taxa such as clover, soybeans, alfalfa, lupins, peanuts, and rooibos.They contain symbiotic bacteria called Rhizobia within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants.

  9. Crop rotation - Wikipedia

    en.wikipedia.org/wiki/Crop_rotation

    They have bacteria in their root nodules which take nitrogen from the air and fix it into the soil as nitrates that crops can use. Farmers have long recognized that suitable rotations such as planting spring crops for livestock in place of grains for human consumption make it possible to restore or to maintain productive soils.