| Autor: |
Basso, Bruno, Jones, James, Richard, Tom, Sukup, Charles, Verma, Lalit, Matlock, Marty, Mohtar, Rabi, Herbstritt, Stephanie, Martinez-Feria, Rafael |
| Předmět: |
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| Zdroj: |
Resource: Engineering & Technology for a Sustainable World. Mar/Apr2021, Vol. 28 Issue 2, p10-14. 5p. |
| Abstrakt: |
Flows of carbon (C), nitrogen (N), and water (H 2 O) in a corn system. If N fertilizer use was reduced by 36% (e.g., with more efficient fertilizer application technology) and environmental N losses were reduced by 50%, then the circularity of N cycling would increase to 30%, with dramatic reductions in the N losses to GHGs and environmental contamination. In addition to the GHGs emitted during fertilizer manufacturing, the use of nitrogen fertilizers can lead to large quantities of nitrous oxide (a potent GHG) and ammonia emissions from crop fields. C orn-soybean rotations are the predominant U.S. cropping system in terms of land area (92 million acres of corn and 84 million acres of soybeans; USDA, 2020), production (346 million tons of corn and 119.5 million tons of soybeans), and economic value ($75 billion from corn and $21.5 billion from soybean). [Extracted from the article] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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