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| Registros recuperados : 26 | |
| 12. |  | MELLO, C. R. de; OLIVEIRA, G. C. de; FERREIRA, D. F.; LIMA, J. M. de. Predição da porosidade drenável e disponibilidade de água para Cambissolos da Microrregião Campos das Vertentes, MG. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 9, p. 1319-1324, set. 2002 Título em inglês: Prediction of drainable porosity and water-holding capacity for Inceptsol from Campos das Vertentes Region, Minas Gerais State, Brazil.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 14. | | PEREIRA, S. A.; OLIVEIRA, G. C. de; SEVERIANO, E. da C.; BALBINO, L. C.; OLIVEIRA, J. P. de. Análise de componentes principais dos atributos físicos de um Latossolo Vermelho Distrófico típico sob pastagem e mata. Global Science and Technology, Rio Verde, v. 3, n. 2, p. 87-97, maio/ago. 2010.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 17. | | RIBEIRO, B. T.; LIMA, J. M. de; MELLO, C. R. de; SA, M. A. C. de; OLIVEIRA, G. C. de. Relationship between raindrops and ultrasonic energy on the disruption of a haplic cambisol. Ciência e Agrotecnologia, Lavras, v. 33, n. 3, p. 814-823, maio/jun., 2009.| Biblioteca(s): Embrapa Cerrados. |
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| 18. | | SILVA, B. M.; OLIVEIRA, G. C. de; SERAFIM, M. E.; SILVA JÚNIOR, J. J. da; COLOMBO, A.; LIMA, J. M. de. Acurácia e calibração de sonda de capacitância em Latossolo Vermelho cultivado com cafeeiro. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 2, p. 277-286, fev. 2012. Título em inglês: Accuracy and calibration of capacitance probe in a Rhodic Ferralsol planted with coffee.| Biblioteca(s): Embrapa Solos / UEP-Recife; Embrapa Unidades Centrais. |
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| 19. | | OLIVEIRA, G. C. de; DIAS JUNIOR, M. de S.; CAROLINO de SA, M. A.; LIMA, J. M. de; VITORINO, A. C. T.; FERREIRA, M. M. Eficiencia do uso do agitador horizontal na dispersao mecanica de amostras de solos. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 27., 1999, Brasilia, DF. [Ciencia do solo e qualidade de vida: anais]. [Planaltina: Embrapa Cerrados, 1999]. Sessao de posteres 6: Resumo.| Biblioteca(s): Embrapa Cerrados. |
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| 20. | | CARVALHO, W. A.; DOMINGUES, R.; PRATA, M. C. de A.; SILVA, M. V. G. B.; OLIVEIRA, G. C. de; GUIMARÃES, S. E. F.; MACHADO, M. A. Microarray analysis of tick-infested skin in resistant and susceptible cattle confirms the role of inflammatory pathways in immune activation and larval rejection. Veterinary Parasitology, Amsterdam, v. 205, n. 1/2, p. 307-317, 2014.| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 26 | |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
23/09/2020 |
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Data da última atualização: |
26/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MOURA, M. S. de; SILVA, B. M.; MOTA, P. K.; BORGHI, E.; RESENDE, A. V. de; ACUNA-GUZMAN, S. F.; ARAUJO, G. S. S.; SILVA, L. de C. M. da; OLIVEIRA, G. C. de; CURI, N. |
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Afiliação: |
Maíse Soares de Moura, Universidade Federal de São João del-Rei; Bruno Montoani Silva, Universidade Federal de Lavras; Paula Karen Mota, Universidade Federal de São João del-Rei; EMERSON BORGHI, CNPMS; ALVARO VILELA DE RESENDE, CNPMS; Salvador Francisco Acuna-Guzman, Center for Engineering and Industrial Development, Querétaro, Mexico; Gabriela Soares Santos Araújo, Universidade Federal de São João del-Rei; Lucas de Castro Moreira da Silva, Universidade Federal de Lavras; Geraldo César de Oliveira, Universidade Federal de Lavras; Nilton Curi, Universidade Federal de Lavras. |
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Título: |
Soil management and diverse crop rotation can mitigate early-stage no-till compaction and improve least limiting water range in a Ferralsol. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agricultural Water Management, v. 243, 106523, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
No-till management systems tend to cause soil compaction in the early years of their establishment. Soil compaction reduces crop production due to restrictions on root development. Management strategies combining crop rotation and soil conservation practices still need to be researched as potential strategies to mitigate no-till soil physical constraints in tropical regions with prolonged drought periods and still promote agricultural sustainability. The objective of this study was to determine if soil specific management could mitigate early-stage no-till compaction and improve least limiting water range in a Rhodic Ferralsol. We hypothesized that no-till cropping systems with concomitant conservation practices ?soil fertilization, crop rotation, and intercropped brachiaria grass? would improve soil physical quality (SPQ) and still achieve high crop yields in a tropical region with dry winters and frequent dry spells during wet season. Six no-till cropping systems were tested: soybean monoculture (T1); corn monoculture (T2); corn and soybean rotation (T3); corn and soybean rotation with intercropped brachiaria (T4); and two more with increased fertilization: corn and soybean rotation with intercropped brachiaria (T5), and corn and soybean rotation (T6). Least limiting water range (LLWR) was used as an indicator of SPQ. LLWR is computed as a function of bulk density (Bd), and it is defined as the range of soil water content in which physical constraints to plant growth are at minimal. Its critical limits are water contents associated with field capacity and air-filled porosity (upper limits), along with wilting point and soil resistance (lower limits). For each Bd, there is a LLWR value: the span between the upper limit and the lower limit. An adaptation of LLWR, in which we substituted the wilting point by the critical water content (θ*), was also tested (LLWR*). Critical Bd (BdC) value was 1.30 Mg m− 3 for LLWR and LLWR*. In monoculture treatments (T1 and T2) the maximum Bd values exceeded the BdC (LLWR = LLWR * = 0) and negatively correlated with crop yield. Alternatively, cropping systems with diverse crop rotation (corn/soybean/brachiaria) showed greater values of LLWR and LLWR* and less soil compaction than monoculture systems. Usage of LLWR* evinced water stress was the main limiting plant growth factor; viz. θ* was more limiting than mechanical resistance and deficient aeration. These results support the hypothesis that the use of soil conservation practices and crop rotation during initial years of no-till farming contributes favorably to SPQ without compromising crop production. MenosNo-till management systems tend to cause soil compaction in the early years of their establishment. Soil compaction reduces crop production due to restrictions on root development. Management strategies combining crop rotation and soil conservation practices still need to be researched as potential strategies to mitigate no-till soil physical constraints in tropical regions with prolonged drought periods and still promote agricultural sustainability. The objective of this study was to determine if soil specific management could mitigate early-stage no-till compaction and improve least limiting water range in a Rhodic Ferralsol. We hypothesized that no-till cropping systems with concomitant conservation practices ?soil fertilization, crop rotation, and intercropped brachiaria grass? would improve soil physical quality (SPQ) and still achieve high crop yields in a tropical region with dry winters and frequent dry spells during wet season. Six no-till cropping systems were tested: soybean monoculture (T1); corn monoculture (T2); corn and soybean rotation (T3); corn and soybean rotation with intercropped brachiaria (T4); and two more with increased fertilization: corn and soybean rotation with intercropped brachiaria (T5), and corn and soybean rotation (T6). Least limiting water range (LLWR) was used as an indicator of SPQ. LLWR is computed as a function of bulk density (Bd), and it is defined as the range of soil water content in which physical constraints to plant growth are a... Mostrar Tudo |
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Thesagro: |
Manejo do Solo; Plantio Direto; Rotação de Cultura. |
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Thesaurus NAL: |
Crop rotation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03506naa a2200277 a 4500
001 2125077
005 2020-10-26
008 2021 bl uuuu u00u1 u #d
100 1 $aMOURA, M. S. de
245 $aSoil management and diverse crop rotation can mitigate early-stage no-till compaction and improve least limiting water range in a Ferralsol.$h[electronic resource]
260 $c2021
520 $aNo-till management systems tend to cause soil compaction in the early years of their establishment. Soil compaction reduces crop production due to restrictions on root development. Management strategies combining crop rotation and soil conservation practices still need to be researched as potential strategies to mitigate no-till soil physical constraints in tropical regions with prolonged drought periods and still promote agricultural sustainability. The objective of this study was to determine if soil specific management could mitigate early-stage no-till compaction and improve least limiting water range in a Rhodic Ferralsol. We hypothesized that no-till cropping systems with concomitant conservation practices ?soil fertilization, crop rotation, and intercropped brachiaria grass? would improve soil physical quality (SPQ) and still achieve high crop yields in a tropical region with dry winters and frequent dry spells during wet season. Six no-till cropping systems were tested: soybean monoculture (T1); corn monoculture (T2); corn and soybean rotation (T3); corn and soybean rotation with intercropped brachiaria (T4); and two more with increased fertilization: corn and soybean rotation with intercropped brachiaria (T5), and corn and soybean rotation (T6). Least limiting water range (LLWR) was used as an indicator of SPQ. LLWR is computed as a function of bulk density (Bd), and it is defined as the range of soil water content in which physical constraints to plant growth are at minimal. Its critical limits are water contents associated with field capacity and air-filled porosity (upper limits), along with wilting point and soil resistance (lower limits). For each Bd, there is a LLWR value: the span between the upper limit and the lower limit. An adaptation of LLWR, in which we substituted the wilting point by the critical water content (θ*), was also tested (LLWR*). Critical Bd (BdC) value was 1.30 Mg m− 3 for LLWR and LLWR*. In monoculture treatments (T1 and T2) the maximum Bd values exceeded the BdC (LLWR = LLWR * = 0) and negatively correlated with crop yield. Alternatively, cropping systems with diverse crop rotation (corn/soybean/brachiaria) showed greater values of LLWR and LLWR* and less soil compaction than monoculture systems. Usage of LLWR* evinced water stress was the main limiting plant growth factor; viz. θ* was more limiting than mechanical resistance and deficient aeration. These results support the hypothesis that the use of soil conservation practices and crop rotation during initial years of no-till farming contributes favorably to SPQ without compromising crop production.
650 $aCrop rotation
650 $aManejo do Solo
650 $aPlantio Direto
650 $aRotação de Cultura
700 1 $aSILVA, B. M.
700 1 $aMOTA, P. K.
700 1 $aBORGHI, E.
700 1 $aRESENDE, A. V. de
700 1 $aACUNA-GUZMAN, S. F.
700 1 $aARAUJO, G. S. S.
700 1 $aSILVA, L. de C. M. da
700 1 $aOLIVEIRA, G. C. de
700 1 $aCURI, N.
773 $tAgricultural Water Management$gv. 243, 106523, 2021.
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