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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
26/01/2010 |
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Data da última atualização: |
05/08/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
OLIVEIRA, D. M. de; VIDEIRA, S. S.; BALDANI, V. L. D. |
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Afiliação: |
Danilo Messias de Oliveira, FAPERJ; Sandy Sampaio Videira, UFRRJ; Vera Lúcia Divan Baldani, Embrapa Agrobiologia. |
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Título: |
Caracterização e seleção de bactérias diazotróficas isoladas de plantas de capim-elefante |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 9., 19 a 23 de outubro de 2009, Seropédica. Ciência no Brasil: desafios, avanços e aplicações: caderno de resumos. Seropédica: Embrapa Agrobiologia, 2009. |
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Páginas: |
p.16 |
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Idioma: |
Português |
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Palavras-Chave: |
Funcionalidade microbiana; Promoção de crescimento vegetal. |
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Thesagro: |
Pennisetum purpureum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00726naa a2200181 a 4500
001 1631219
005 2010-08-05
008 2009 bl --- 0-- u #d
100 1 $aOLIVEIRA, D. M. de
245 $aCaracterização e seleção de bactérias diazotróficas isoladas de plantas de capim-elefante
260 $c2009
300 $ap.16
650 $aPennisetum purpureum
653 $aFuncionalidade microbiana
653 $aPromoção de crescimento vegetal
700 1 $aVIDEIRA, S. S.
700 1 $aBALDANI, V. L. D.
773 $tIn: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 9., 19 a 23 de outubro de 2009, Seropédica. Ciência no Brasil: desafios, avanços e aplicações: caderno de resumos. Seropédica: Embrapa Agrobiologia, 2009.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
11/12/2023 |
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Data da última atualização: |
11/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
SILVA, W. C. da; CASSOL, P. C.; NICOLOSO, R. da S.; MUMBACH, G. L.; DALL''ORSOLETTA, D. J.; GRANDO, D. L.; GATIBONI, L. C. |
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Afiliação: |
WALQUIRIA CHAVES DA SILVA, Universidade do Estado de Santa Catarina/Lages; PAULO CEZAR CASSOL, Universidade do Estado de Santa Catarina/Lages; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; GILMAR LUIZ MUMBACH, Universidade do Estado de Santa Catarina/Lages; DANIEL JOÃO DALL''ORSOLETTA, Demétrio Dall’Orsoletta Ensino Agroveterinário; DOUGLAS LUIZ GRANDO, Universidade Federal de Santa Maria; LUCIANO COLPO GATIBONI, North Carolina State University. |
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Título: |
Establishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 47, ed. e0230049, 2023. |
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DOI: |
https://doi.org/10.36783/18069657rbcs20230049 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm-3) = 13 + 0.5 * % clay” was proposed. MenosAbstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg ... Mostrar Tudo |
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Palavras-Chave: |
Environmental pollution; P-thresholds; Swine manure. |
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Thesagro: |
Conservação do Solo; Dejeto; Eliminação de Resíduo; Eutrofização; Fósforo; Poluição Ambiental; Suíno. |
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Thesaurus NAL: |
Eutrophication. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159478/1/final10271.pdf
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Marc: |
LEADER 02593naa a2200337 a 4500
001 2159478
005 2023-12-11
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.36783/18069657rbcs20230049$2DOI
100 1 $aSILVA, W. C. da
245 $aEstablishing environmental soil phosphorus thresholds to mitigate its transfer to water bodies in Mato Grosso State, Brazil.$h[electronic resource]
260 $c2023
520 $aAbstract: Excessive phosphorus (P) applications can increase nutrient levels in the soil, facilitating its transference to aquatic environments and causing contamination. Thus, the environmental P threshold (P-threshold) is a tool to establish a sound level of P in the soil, in which P values below the threshold are harmless to the environment. This study aimed to establish a P-threshold equation for the soils of Mato Grosso State, Brazil. Twenty samples of representative soils from the main swine production regions of the State were collected. These samples were characterized chemically and in terms of P adsorption capacity, then incubated with P rates for 30 days. After incubation, the water-soluble P content (P-water) and the available P content were determined by Mehlich-1 method (P-Mehlich-1). The relationship between P-water and P-Mehlich-1 allowed the determination of the P-Mehlich-1 content from which the amount of nutrient in water increases abruptly, establishing this point as the limit P (P-limit). Subsequently, the P-limit values were plotted against the clay content of the soils, and the resulting equation was used to calculate the P-threshold by adding a safety margin of 20 % to the P-limit versus clay equation. The model was tested on 120 soil samples from Mato Grosso State, and it was able to separate them into two groups with low and high P-water, classified as below or above P-threshold, respectively. Based on that, the simplified equation “P-threshold (mg dm-3) = 13 + 0.5 * % clay” was proposed.
650 $aEutrophication
650 $aConservação do Solo
650 $aDejeto
650 $aEliminação de Resíduo
650 $aEutrofização
650 $aFósforo
650 $aPoluição Ambiental
650 $aSuíno
653 $aEnvironmental pollution
653 $aP-thresholds
653 $aSwine manure
700 1 $aCASSOL, P. C.
700 1 $aNICOLOSO, R. da S.
700 1 $aMUMBACH, G. L.
700 1 $aDALL''ORSOLETTA, D. J.
700 1 $aGRANDO, D. L.
700 1 $aGATIBONI, L. C.
773 $tRevista Brasileira de Ciência do Solo$gv. 47, ed. e0230049, 2023.
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