Cascade Effect of Nitrogen on Brazilian Soybean Production Chain
| Autor: | Rafael Araújo Nacimento, Thierry Bonaudo, Augusto Hauber Gameiro, ricardo barboza alves, Vanessa Theodoro Rezende |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010504 meteorology & atmospheric sciences
Cascade effect (ecology) Reactive nitrogen Soybean meal chemistry.chemical_element FIXAÇÃO DE NITROGÊNIO reactive nitrogen 010501 environmental sciences 01 natural sciences nitrogen use efficiency lcsh:QH540-549.5 Production (economics) food production 0105 earth and related environmental sciences Inert business.industry Material flow analysis fungi food and beverages soy production Nitrogen material flow analysis Agronomy chemistry Food processing Environmental science lcsh:Ecology business Brazil |
| Zdroj: | Nitrogen Volume 2 Issue 2 Pages: 128-138 Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Nitrogen, Vol 2, Iss 9, Pp 128-138 (2021) |
| ISSN: | 2504-3129 |
| DOI: | 10.3390/nitrogen2020009 |
| Popis: | Soybean is one of the most traded products. Naturally, soy fixes nitrogen through biological symbiosis. Its cultivation transforms natural inert atomic nitrogen into its reactive forms. The advancement of soybean can have environmental impacts, both locally and globally. This study estimated nitrogen flows and their use efficiency in the Brazilian soybean production chain applying material flow analysis. We innovate proposing a new indicator to estimate the “cascade effect of nitrogen” in a framework of 12 years (2007 to 2019). We hypothesized that it is capable to show accumulated nitrogen emissions through the chain. Besides, the method can show the main sources of nitrogen to the environment. The biological fixation was the largest entry. The efficiency in the use of nitrogen was 81% for grain production, and the nitrogen cascade indicator, which represents the ratio of the nitrogen emission in the environment to the total nitrogen available in the product, was only 5.2% in the soybean meal production chain for the year of 2019, with a clear trend of increasing during the period. Thus, Brazil contributes significantly to global nitrogen emissions in the environment since the country is an important producer and player in the world market. |
| Databáze: | OpenAIRE |
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