| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Radiological impact of phosphogypsum surface application in a no-till system in Southern Brazil
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| Autores: |
Dias,Nivea Maria Piccolomini
Caires,Eduardo Fávero
Pires,Luiz Fernando
Bacchi,Márcio Arruda
Fernandes,Elisabete Aparecida de Nadai
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| Data: |
2010-12-01
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| Ano: |
2010
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| Palavras-chave: |
Glycine max
Gamma spectrometry
Radioactivity
226Ra
228Ra
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| Resumo: |
The objective of this work was to determine the impact of phosphogypsum application on 226Ra and 228Ra activities in the soil and on their accumulation in soybean grains. A field experiment was carried out in Paraná state, Brazil, on a loamy Typic Hapludox, under no-till system, with increasing phosphogypsum rates: 4, 8, and 12 Mg ha-1. GammA ray spectrometry was carried out using HPGe detectors with 45 and 10% relative efficiencies, for soybean grains and soil, respectively. No increment of 226Ra and 228Ra activities was observed due to the increase in phosphogypsum rates in the soil, and a small reduction was noticed in the grains. Average values found for 226Ra and 228Ra activities were 37 and 57 Bq kg-1 in the soil and 1.44 and 3.19 Bq kg-1 in soybean grains. The application of phosphogypsum for no-till soybean production is a safe practice regarding the risks of radiation damage to human health
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001200017
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2010001200017
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.45 n.12 2010
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| Direitos: |
info:eu-repo/semantics/openAccess
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