World Cereal Nitrogen Use Efficiency Trends: Review and Current Knowledge
نویسندگان
چکیده
منابع مشابه
Nitrogen-Use Efficiency, Nitrous Oxide Emissions, and Cereal Production in Brazil: Current Trends and Forecasts
The agriculture sector has historically been a major source of greenhouse gas (GHG) emissions into the atmosphere. Although the use of synthetic fertilizers is one of the most common widespread agricultural practices, over-fertilization can lead to negative economic and environmental consequences, such as high production costs, depletion of energy resources, and increased GHG emissions. Here, w...
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found, had they considered N derived from the soil (Keeney, 1982; van der Ploeg et al., 1997). Using the Worldwide, nitrogen use efficiency (NUE) for cereal production same references and assumptions in Table 1, cereal (wheat, Triticum aestivum L.; corn, Zea mays L.; rice, Oryza sativa L. and O. glaberrima Steud.; barley, Hordeum vulgare L.; sorghum, NUEs are 42 and 29% in developed and develop...
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Nitrogen (N) is crucial for crop productivity. However, nowadays more than half of the N added to cropland is lost to the environment, wasting the resource, producing threats to air, water, soil and biodiversity, and generating greenhouse gas emissions. Based on FAO data, we have reconstructed the trajectory followed, in the past 50 years, by 124 countries in terms of crop yield and total nitro...
متن کاملNutrient/fertilizer use efficiency: measurement, current situation and trends
Nutrient use efficiency (NUE) is a critically important concept in the evaluation of crop production systems. It can be greatly impacted by fertilizer management as well as by soiland plant-water management. The objective of nutrient use is to increase the overall performance of cropping systems by providing economically optimum nourishment to the crop while minimizing nutrient losses from the ...
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and 10% in corn (Hilton et al., 1994). Fertilizer N losses due to surface runoff range between 1 and 13% In 2001, N fertilizer prices nearly doubled as a result of increased (Blevins et al., 1996; Chichester and Richardson, 1992). natural gas prices. This was further troubling when considering that the world N use efficiency (NUE) in cereal grain production averages Urea fertilizers applied to ...
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ژورنال
عنوان ژورنال: Agrosystems, Geosciences & Environment
سال: 2019
ISSN: 2639-6696,2639-6696
DOI: 10.2134/age2018.10.0045