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Registro Completo |
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
01/07/2021 |
Data da última atualização: |
01/07/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MÜLLER, M.; SCHNEIDER, J. R.; KLEIN, V. A.; SILVA, E. da; SILVA JUNIOR, J. P. da; SOUZA, A. M.; CHAVARRIA, G. |
Afiliação: |
MARIELE MÜLLER, 1 Agronomy Post-Graduate Program, Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, Passo Fundo, Brazil, 2; JULIA RENATA SCHNEIDER, 1 Agronomy Post-Graduate Program, Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, Passo Fundo, Brazil, 2; VILSON ANTÔNIO KLEIN, Agronomy Post-Graduate Program, Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, Passo Fundo, Brazil; ELIARDO DA SILVA, Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, Passo Fundo, Brazil, 3 Embrapa Wheat, Passo Fundo, Brazil, 4; JOSE PEREIRA DA SILVA JUNIOR, CNPT; ADRIANO MENDONÇA SOUZA, Department of Statistics, Federal University of Santa Maria, Santa Maria, Brazil; GERALDO CHAVARRIA, Agronomy Post-Graduate Program, Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, Passo Fundo, Brazi. |
Título: |
Soybean root growth in response to chemical, physical, and biological soil variations. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Frontiers in Plant Science, v. 12, article 602569, Feb. 2021. |
Idioma: |
Inglês |
Conteúdo: |
Environmental conditions affect crop yield, and water deficit has been highlighted by the negative impact on soybean grain production. Radicial growth in greater volume and depth can be an alternative to minimize losses caused by a lack of water. Therefore, knowledge of how soybean roots behave before the chemical, physical, and biological attributes of the soil can help establish managements that benefit in-depth root growth. The objective was to evaluate the growth of soybean roots in response to chemical, physical, and biological variations in the soil, in different soil locations and depths. Six experiments were conducted in different locations. Soil samples were collected every 5 cm of soil up to 60 cm of soil depth for chemical, physical, and biological analysis. The roots were collected every 5 cm deep up to 45 cm deep from the ground. The six sites presented unsatisfactory values of pH and organic matter, and resented phosphorus, potassium, and calcium at high concentrations in the first centimeters of soil depth. The total porosity of the soil was above 0.50 m3 m−3 , but the proportion of the volume of macropores, micropores, and cryptopores resulted in soils with resistance to penetration to the roots. Microbial biomass was higher on the soil surface when compared to deeper soil layers, however, the metabolic quotient was higher in soil depth, showing that microorganisms in depth have low ability to incorporate carbon into microbial biomass. Root growth occurred in a greater proportion in the first centimeters of soil-depth, possibly because the soil attributes that favor the root growth is concentrated on the soil surface. MenosEnvironmental conditions affect crop yield, and water deficit has been highlighted by the negative impact on soybean grain production. Radicial growth in greater volume and depth can be an alternative to minimize losses caused by a lack of water. Therefore, knowledge of how soybean roots behave before the chemical, physical, and biological attributes of the soil can help establish managements that benefit in-depth root growth. The objective was to evaluate the growth of soybean roots in response to chemical, physical, and biological variations in the soil, in different soil locations and depths. Six experiments were conducted in different locations. Soil samples were collected every 5 cm of soil up to 60 cm of soil depth for chemical, physical, and biological analysis. The roots were collected every 5 cm deep up to 45 cm deep from the ground. The six sites presented unsatisfactory values of pH and organic matter, and resented phosphorus, potassium, and calcium at high concentrations in the first centimeters of soil depth. The total porosity of the soil was above 0.50 m3 m−3 , but the proportion of the volume of macropores, micropores, and cryptopores resulted in soils with resistance to penetration to the roots. Microbial biomass was higher on the soil surface when compared to deeper soil layers, however, the metabolic quotient was higher in soil depth, showing that microorganisms in depth have low ability to incorporate carbon into microbial biomass. Root growth occur... Mostrar Tudo |
Palavras-Chave: |
Glycine max Merril; Principal component analyses; Root volume; Soil nutrition; Soil porosity. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224226/1/Muller-et-al2021-1.pdf
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Marc: |
LEADER 02417naa a2200253 a 4500 001 2132719 005 2021-07-01 008 2021 bl uuuu u00u1 u #d 100 1 $aMÜLLER, M. 245 $aSoybean root growth in response to chemical, physical, and biological soil variations.$h[electronic resource] 260 $c2021 520 $aEnvironmental conditions affect crop yield, and water deficit has been highlighted by the negative impact on soybean grain production. Radicial growth in greater volume and depth can be an alternative to minimize losses caused by a lack of water. Therefore, knowledge of how soybean roots behave before the chemical, physical, and biological attributes of the soil can help establish managements that benefit in-depth root growth. The objective was to evaluate the growth of soybean roots in response to chemical, physical, and biological variations in the soil, in different soil locations and depths. Six experiments were conducted in different locations. Soil samples were collected every 5 cm of soil up to 60 cm of soil depth for chemical, physical, and biological analysis. The roots were collected every 5 cm deep up to 45 cm deep from the ground. The six sites presented unsatisfactory values of pH and organic matter, and resented phosphorus, potassium, and calcium at high concentrations in the first centimeters of soil depth. The total porosity of the soil was above 0.50 m3 m−3 , but the proportion of the volume of macropores, micropores, and cryptopores resulted in soils with resistance to penetration to the roots. Microbial biomass was higher on the soil surface when compared to deeper soil layers, however, the metabolic quotient was higher in soil depth, showing that microorganisms in depth have low ability to incorporate carbon into microbial biomass. Root growth occurred in a greater proportion in the first centimeters of soil-depth, possibly because the soil attributes that favor the root growth is concentrated on the soil surface. 653 $aGlycine max Merril 653 $aPrincipal component analyses 653 $aRoot volume 653 $aSoil nutrition 653 $aSoil porosity 700 1 $aSCHNEIDER, J. R. 700 1 $aKLEIN, V. A. 700 1 $aSILVA, E. da 700 1 $aSILVA JUNIOR, J. P. da 700 1 $aSOUZA, A. M. 700 1 $aCHAVARRIA, G. 773 $tFrontiers in Plant Science$gv. 12, article 602569, Feb. 2021.
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Embrapa Trigo (CNPT) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
17/09/2008 |
Data da última atualização: |
24/05/2018 |
Autoria: |
FERREIRA, W. P. M.; COSTA, L. C.; SOUZA, C. de F. |
Afiliação: |
EMBRAPA-CNPMS. |
Título: |
Teste de um modelo agrometeorológico para estudo da influência da variabilidade climática na cultura da soja. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Revista Ceres, Viçosa, v. 54, n. 312, p. 207-214, 2007. |
Idioma: |
Português |
Conteúdo: |
Com o objetivo de verificar o efeito do clima sobre a produtividade da cultura da soja em Minas Gerais, foi desenvolvido um modelo de simulação dinâmico, mecanístico e deterrninístico. A principal característica do modelo foi a busca do equilíbrio entre a simplicidade no seu manuseio e o rigor científico necessário. Como variáveis de entrada, o modelo utiliza os elementos climáticos precipitação, temperatura e insolação. Os resultados mostraram que o modelo simulou satisfatoriamente a produtividade da soja para os anos agrícolas de 1995/96 e 1996/97, evídenciando as diferenças morfológicas e fisiológicas da cultura, em resposta às variações climáticas, o que evidencia o seu alto potencial de aplicação no entendimento das relações entre clima e cultura. |
Palavras-Chave: |
Modelo agrometeorológico; Mudanças climáticas. |
Thesagro: |
Glycine Max; Produtividade; Soja. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/50741/1/Teste-modelo.pdf
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Marc: |
LEADER 01430naa a2200205 a 4500 001 1491220 005 2018-05-24 008 2007 bl uuuu u00u1 u #d 100 1 $aFERREIRA, W. P. M. 245 $aTeste de um modelo agrometeorológico para estudo da influência da variabilidade climática na cultura da soja.$h[electronic resource] 260 $c2007 520 $aCom o objetivo de verificar o efeito do clima sobre a produtividade da cultura da soja em Minas Gerais, foi desenvolvido um modelo de simulação dinâmico, mecanístico e deterrninístico. A principal característica do modelo foi a busca do equilíbrio entre a simplicidade no seu manuseio e o rigor científico necessário. Como variáveis de entrada, o modelo utiliza os elementos climáticos precipitação, temperatura e insolação. Os resultados mostraram que o modelo simulou satisfatoriamente a produtividade da soja para os anos agrícolas de 1995/96 e 1996/97, evídenciando as diferenças morfológicas e fisiológicas da cultura, em resposta às variações climáticas, o que evidencia o seu alto potencial de aplicação no entendimento das relações entre clima e cultura. 650 $aGlycine Max 650 $aProdutividade 650 $aSoja 653 $aModelo agrometeorológico 653 $aMudanças climáticas 700 1 $aCOSTA, L. C. 700 1 $aSOUZA, C. de F. 773 $tRevista Ceres, Viçosa$gv. 54, n. 312, p. 207-214, 2007.
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