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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
21/03/2023 |
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Data da última atualização: |
21/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, L. de C. M. da; PEIXOTO, D. S.; AZEVEDO, R. P.; AVANZI, J. C.; DIAS JUNIOR, M. de S.; VANELLA, D.; CONSOLI, S.; ACUÑA-GUZMAN, S. F.; BORGHI, E.; RESENDE, A. V. de; SILVA, B. M. |
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Afiliação: |
LUCAS DE CASTRO MOREIRA DA SILVA, Universidade Federal de Lavras; DEVISON SOUZA PEIXOTO, Universidade Federal de Lavras; RAPHAEL PASSAGLIA AZEVEDO, Universidade Federal de Lavras; JUNIOR CESAR AVANZI, Universidade Federal de Lavras; MOACIR DE SOUZA DIAS JUNIOR, Universidade Federal de Lavras; DANIELA VANELLA, University of Catania; SIMONA CONSOLI, University of Catania; SALVADOR FRANCISCO ACUÑA-GUZMAN, University of Puerto Rico; EMERSON BORGHI, CNPMS; ALVARO VILELA DE RESENDE, CNPMS; BRUNO MONTOANI SILVA, Universidade Federal de Lavras. |
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Título: |
Assessment of soil water content variability using electrical resistivity imaging in an Oxisol under conservation cropping systems. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Geoderma Regional, v. 33, e00624, 2023. |
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DOI: |
https://doi.org/10.1016/j.geodrs.2023.e00624 |
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Idioma: |
Inglês |
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Conteúdo: |
Agricultural systems are increasingly challenged of achieving high yields while optimizing plant water consumption. Soil conservation practices are preponderant in rain-fed agriculture for increasing water infiltration, water storage in the soil, and for promoting root development. This study aimed to assess the spatial-temporal soil water content t (0) dynamics identified by the application of electrical resistivity tomography (ERT) surveys in an Oxisol under grain production systems in the Brazilian Cerrado. The utilized cropping systems were: soybean monoculture (SS); maize monoculture (MM); maize/soybean rotation (MS); maize/soybean rotation with intercropped brachiaria (MBSB); maize/soybean rotation with high fertilizer investment (MS-HI), and MBSB and high fertilizer investment (MBSB-HI). ERT measurements were performed at field conditions using different time-steps during the rainy (March, 2019) and dry seasons (July 2018 and 2019). Logarithmic and power models were tested for evaluating the relationships between ? and the electrical resistivity (p). Results showed ERT was adequate for monitoring the spatial-temporal 0 variation and for inferring soil-plant related processes (i.e., water uptake and macro-porosity due to roots development). The power model was more suitable in depicting the 0 - p relationship, and for imaging the water unavailability for plants during the dry periods. Intercropped brachiaria positively affected the ? dynamics due to its aggressive root systems. MBSB-HI showed the highest 0 values in the rainy season, demonstrating that ecological intensified cropping systems can help overcome severe dry spells, in the Brazilian Cerrado. MenosAgricultural systems are increasingly challenged of achieving high yields while optimizing plant water consumption. Soil conservation practices are preponderant in rain-fed agriculture for increasing water infiltration, water storage in the soil, and for promoting root development. This study aimed to assess the spatial-temporal soil water content t (0) dynamics identified by the application of electrical resistivity tomography (ERT) surveys in an Oxisol under grain production systems in the Brazilian Cerrado. The utilized cropping systems were: soybean monoculture (SS); maize monoculture (MM); maize/soybean rotation (MS); maize/soybean rotation with intercropped brachiaria (MBSB); maize/soybean rotation with high fertilizer investment (MS-HI), and MBSB and high fertilizer investment (MBSB-HI). ERT measurements were performed at field conditions using different time-steps during the rainy (March, 2019) and dry seasons (July 2018 and 2019). Logarithmic and power models were tested for evaluating the relationships between ? and the electrical resistivity (p). Results showed ERT was adequate for monitoring the spatial-temporal 0 variation and for inferring soil-plant related processes (i.e., water uptake and macro-porosity due to roots development). The power model was more suitable in depicting the 0 - p relationship, and for imaging the water unavailability for plants during the dry periods. Intercropped brachiaria positively affected the ? dynamics due to its aggressive root... Mostrar Tudo |
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Thesagro: |
Conservação do Solo; Retenção de Água no Solo; Umidade do Solo. |
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Thesaurus Nal: |
Agricultural conservation practice; Crop rotation; Soil water retention. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02723naa a2200325 a 4500
001 2152561
005 2023-03-21
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.geodrs.2023.e00624$2DOI
100 1 $aSILVA, L. de C. M. da
245 $aAssessment of soil water content variability using electrical resistivity imaging in an Oxisol under conservation cropping systems.$h[electronic resource]
260 $c2023
520 $aAgricultural systems are increasingly challenged of achieving high yields while optimizing plant water consumption. Soil conservation practices are preponderant in rain-fed agriculture for increasing water infiltration, water storage in the soil, and for promoting root development. This study aimed to assess the spatial-temporal soil water content t (0) dynamics identified by the application of electrical resistivity tomography (ERT) surveys in an Oxisol under grain production systems in the Brazilian Cerrado. The utilized cropping systems were: soybean monoculture (SS); maize monoculture (MM); maize/soybean rotation (MS); maize/soybean rotation with intercropped brachiaria (MBSB); maize/soybean rotation with high fertilizer investment (MS-HI), and MBSB and high fertilizer investment (MBSB-HI). ERT measurements were performed at field conditions using different time-steps during the rainy (March, 2019) and dry seasons (July 2018 and 2019). Logarithmic and power models were tested for evaluating the relationships between ? and the electrical resistivity (p). Results showed ERT was adequate for monitoring the spatial-temporal 0 variation and for inferring soil-plant related processes (i.e., water uptake and macro-porosity due to roots development). The power model was more suitable in depicting the 0 - p relationship, and for imaging the water unavailability for plants during the dry periods. Intercropped brachiaria positively affected the ? dynamics due to its aggressive root systems. MBSB-HI showed the highest 0 values in the rainy season, demonstrating that ecological intensified cropping systems can help overcome severe dry spells, in the Brazilian Cerrado.
650 $aAgricultural conservation practice
650 $aCrop rotation
650 $aSoil water retention
650 $aConservação do Solo
650 $aRetenção de Água no Solo
650 $aUmidade do Solo
700 1 $aPEIXOTO, D. S.
700 1 $aAZEVEDO, R. P.
700 1 $aAVANZI, J. C.
700 1 $aDIAS JUNIOR, M. de S.
700 1 $aVANELLA, D.
700 1 $aCONSOLI, S.
700 1 $aACUÑA-GUZMAN, S. F.
700 1 $aBORGHI, E.
700 1 $aRESENDE, A. V. de
700 1 $aSILVA, B. M.
773 $tGeoderma Regional$gv. 33, e00624, 2023.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
15/10/2001 |
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Data da última atualização: |
18/07/2011 |
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Autoria: |
CALDEIRA, M. V. W.; SCHUMACHER, M. V.; SANTOS, E. M. dos. |
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Título: |
Conteúdo de nutrientes em uma procedência de Acacia mearnsii plantada no Rio Grande do Sul - Brasil. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Boletim de Pesquisa Florestal, Colombo, n. 42, p. 93-107, jan./jun. 2001. |
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ISSN: |
1517-6371 |
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Idioma: |
Português |
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Conteúdo: |
No presente trabalho foi quantificado o conteudo de nutrientes em Acacia-negra, (Acacia mearnsii De Wild) da procedencia australiana de Batemans Bay, aos 2,4 anos de idade. Esse material encontra-se estabelecido em solos de baixa fertilidade, com acidez elevada, localizado na Fazenda Menezes, no distrito de Capao Comprido, municipio de butia/RS. Foram selecionados um total de 9 arvores para comporem as amostras. A amostragem constituiu na individualizacao dos compartimentos de biomassa aerea (folhas, galhos vivos, galhos mortos, casca e madeira) visando a determinacao da materia seca e do conteudo de nutrientes. As quantidades de nutrientes contidas na biomassa total desse material foi de 297,87 kg.ha-1 de N; 14,32 kg.ha-1 de P; 191,74 kg.ha-1 de K; 101,06 kg.ha-1 de Ca; 28,92 kg.ha-1 de Mg e 18,28 kg.ha-1 de S. Quanto a distribuicao nos compartimentos, 57,73% da materia seca foi alocada para as folhas e galhos (vivos e mortos), contendo 74% do N; 74% do P; 65% do K; 61% do Ca; 69% do Mg e 73% do S do total existentte na parte aerea. O componente fuste (casca e madeira) acumulou 26% do N; 26% do P; 35% do K; 39% do Ca; 31% do Mg e 27% do S. |
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Palavras-Chave: |
Ciclagem de nutrientes; Mineral nutrients; Nutrient cycling; Nutrientes minerais; Sustainability; Sustentabilidade. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPF-2009-09/15628/1/caldeira1.pdf
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Marc: |
LEADER 01862naa a2200229 a 4500
001 1289812
005 2011-07-18
008 2001 bl uuuu u00u1 u #d
022 $a1517-6371
100 1 $aCALDEIRA, M. V. W.
245 $aConteúdo de nutrientes em uma procedência de Acacia mearnsii plantada no Rio Grande do Sul - Brasil.
260 $c2001
520 $aNo presente trabalho foi quantificado o conteudo de nutrientes em Acacia-negra, (Acacia mearnsii De Wild) da procedencia australiana de Batemans Bay, aos 2,4 anos de idade. Esse material encontra-se estabelecido em solos de baixa fertilidade, com acidez elevada, localizado na Fazenda Menezes, no distrito de Capao Comprido, municipio de butia/RS. Foram selecionados um total de 9 arvores para comporem as amostras. A amostragem constituiu na individualizacao dos compartimentos de biomassa aerea (folhas, galhos vivos, galhos mortos, casca e madeira) visando a determinacao da materia seca e do conteudo de nutrientes. As quantidades de nutrientes contidas na biomassa total desse material foi de 297,87 kg.ha-1 de N; 14,32 kg.ha-1 de P; 191,74 kg.ha-1 de K; 101,06 kg.ha-1 de Ca; 28,92 kg.ha-1 de Mg e 18,28 kg.ha-1 de S. Quanto a distribuicao nos compartimentos, 57,73% da materia seca foi alocada para as folhas e galhos (vivos e mortos), contendo 74% do N; 74% do P; 65% do K; 61% do Ca; 69% do Mg e 73% do S do total existentte na parte aerea. O componente fuste (casca e madeira) acumulou 26% do N; 26% do P; 35% do K; 39% do Ca; 31% do Mg e 27% do S.
653 $aCiclagem de nutrientes
653 $aMineral nutrients
653 $aNutrient cycling
653 $aNutrientes minerais
653 $aSustainability
653 $aSustentabilidade
700 1 $aSCHUMACHER, M. V.
700 1 $aSANTOS, E. M. dos
773 $tBoletim de Pesquisa Florestal, Colombo$gn. 42, p. 93-107, jan./jun. 2001.
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Embrapa Florestas (CNPF) |
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