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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão; Embrapa Meio-Norte; Embrapa Solos. |
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Data corrente: |
05/05/1998 |
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Data da última atualização: |
11/07/2018 |
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Autoria: |
COELHO, M. A. |
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Título: |
Spatial variability of water related soil physical properties. |
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Ano de publicação: |
1974 |
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Fonte/Imprenta: |
S.l.: University of Arizona, 1974. |
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Páginas: |
97p. |
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Idioma: |
Inglês |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
A study of soil variability was performed on an 87 hectare area within a uniform mapping unit-Pima Clay loam at The University of Arizona Branch experiment Station at Marana. The primary interest was with respect to soil water parameters. From 36 sites selected by an unbalanced three-stage nested design, 180 core samples were collected at 30 cm depth intervals to 150 cm. In addition, 500 bulk samples were taken at the 60 cm depth on an equally spaced grid over a secondary sampling area of 96 by 76 meters. The measured parameters showed different patterns of spatial variation. For example, to estimate means within 10% for the 30 cm depth 5, 51, and 1,011 samples would be needed for bul density, the porosity index, and the saturated hydraulic conductivity, respectively (using the 0.05 level of significance). Most of the other estimates for number of samples required were in a range of 50 to 100. Most coefficients of variation were between 10 and 50% with bulk density lower and saturated hydraulic conductivity higher. Variance components for the three stages obtained from the analysis of variance revealed that the variation among fields was smaller than within fields and sections for the majority of the measured parameters, their average relative contribution to the total variance being 25, 44, and 31%, respectively. Values of 15-bar moisture retention corresponding to the 500 bulk samples showed a frequency distribution close to the normal with a slight tendency distribution close to the normal with ................. MenosA study of soil variability was performed on an 87 hectare area within a uniform mapping unit-Pima Clay loam at The University of Arizona Branch experiment Station at Marana. The primary interest was with respect to soil water parameters. From 36 sites selected by an unbalanced three-stage nested design, 180 core samples were collected at 30 cm depth intervals to 150 cm. In addition, 500 bulk samples were taken at the 60 cm depth on an equally spaced grid over a secondary sampling area of 96 by 76 meters. The measured parameters showed different patterns of spatial variation. For example, to estimate means within 10% for the 30 cm depth 5, 51, and 1,011 samples would be needed for bul density, the porosity index, and the saturated hydraulic conductivity, respectively (using the 0.05 level of significance). Most of the other estimates for number of samples required were in a range of 50 to 100. Most coefficients of variation were between 10 and 50% with bulk density lower and saturated hydraulic conductivity higher. Variance components for the three stages obtained from the analysis of variance revealed that the variation among fields was smaller than within fields and sections for the majority of the measured parameters, their average relative contribution to the total variance being 25, 44, and 31%, respectively. Values of 15-bar moisture retention corresponding to the 500 bulk samples showed a frequency distribution close to the normal with a slight tendency distribution c... Mostrar Tudo |
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Palavras-Chave: |
Physic. |
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Thesagro: |
Distribuição de Água; Física; Física do Solo; Solo. |
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Thesaurus Nal: |
soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02050nam a2200205 a 4500
001 1057035
005 2018-07-11
008 1974 bl uuuu m 00u1 u #d
100 1 $aCOELHO, M. A.
245 $aSpatial variability of water related soil physical properties.
260 $aS.l.: University of Arizona$c1974
300 $a97p.
500 $aPh.D. Thesis.
520 $aA study of soil variability was performed on an 87 hectare area within a uniform mapping unit-Pima Clay loam at The University of Arizona Branch experiment Station at Marana. The primary interest was with respect to soil water parameters. From 36 sites selected by an unbalanced three-stage nested design, 180 core samples were collected at 30 cm depth intervals to 150 cm. In addition, 500 bulk samples were taken at the 60 cm depth on an equally spaced grid over a secondary sampling area of 96 by 76 meters. The measured parameters showed different patterns of spatial variation. For example, to estimate means within 10% for the 30 cm depth 5, 51, and 1,011 samples would be needed for bul density, the porosity index, and the saturated hydraulic conductivity, respectively (using the 0.05 level of significance). Most of the other estimates for number of samples required were in a range of 50 to 100. Most coefficients of variation were between 10 and 50% with bulk density lower and saturated hydraulic conductivity higher. Variance components for the three stages obtained from the analysis of variance revealed that the variation among fields was smaller than within fields and sections for the majority of the measured parameters, their average relative contribution to the total variance being 25, 44, and 31%, respectively. Values of 15-bar moisture retention corresponding to the 500 bulk samples showed a frequency distribution close to the normal with a slight tendency distribution close to the normal with .................
650 $asoil
650 $aDistribuição de Água
650 $aFísica
650 $aFísica do Solo
650 $aSolo
653 $aPhysic
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 77 | |
| 4. |  | COELHO, M. A. O.; CONDÉ, A. B. T.; FRONZA, V.; YAMANAKA, C. H. Avaliação de trigo sequeiro em duas regiões do estado de Minas Gerais. In: REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 2., 2008, Passo Fundo. Atas e resumos... Passo Fundo: Comissão Brasileira de Pesquisa de Trigo e Triticale: Embrapa Trigo: Embrapa Transferência de Tecnologia, 2008. 1 p. 1 CD-ROM. Melhoramento, 50. Área: Melhoramento, Aptidão Industrial e Sementes.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 10. | | CASTILHO, L. R.; COELHO, M. A. Z.; COURI, S.; LEITE, S. G. F.; MEDRONHO, R. A. Escolha de linhagens de A.Niger para a producao de pectinases e caracterizacao do complexo enzimatico. In: CONGRESSO BRASILEIRO DE ENGENHARIA, 11., 1996, Rio de Janeiro, RJ. Anais... Rio de Janeiro: Associacao Brasileira de Engenharia Quimica, 1996. v. 2, p.1466-1471.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 12. | | COELHO, M. A. Z.; ROSA, M. F.; FURTADO, A. A. L.; LEITE, S. G. F. Fermentacao semi solida da casca de coco verde para producao de enzimas: influencia da razao substrato/solucao de sais. In: CONGRESSO BRASILEIRO DE CIENCIA E TECNOLOGIA DE ALIMENTOS, 17., 2000, Fortaleza, CE. Livro de resumos... Fortaleza: SBCTA, 2000. v.3 , p.9.62, 2000.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 13. | | BRIGIDA, A. I. S.; AMARAL, P. F. F.; COELHO, M. A. Z.; GONÇALVES, L. R. B. Lipase from Yarrowia lipolytica: production, characterization and application as an industrial biocatalyst. Journal of Molecular Catalysis B: Enzymatic, Amsterdam, v. 101, p. 148-158, 2014. Applied Catalysis B: Environmental, Amsterdam, v. 144, p. 800-808, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 14. | | COELHO, M. A. de O.; CECON, P. R.; TORRES, G. A. M. Incidência de brusone variando épocas de semeadura e genótipos de trigo em Patos de Minas. In: REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 8.; SEMINÁRIO TÉCNICO DO TRIGO, 9., 2014, Canela; REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 9.; SEMINÁRIO TÉCNICO DO TRIGO, 10., 2015, Passo Fundo. Anais... Passo Fundo: Biotrigo Genética: Embrapa Trigo, 2015. 2014-Fitopatologia-Trabalho 46. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 16. | | COELHO, M. A. de O.; TORRES, G. A. M.; CECON, P. R.; SANTANA, F. M. Sowing date reduces the incidence of wheat blast disease. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 51, n. 5, p. 631-637, maio 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Trigo; Embrapa Unidades Centrais. |
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| 18. | | SOARES SOBRINHO, J.; SÓ e SILVA, M.; SCHEEREN, P. L.; ALBRECHT, J. C.; FAGIOLI, M.; COELHO, M. A. de O. Comportamento de genótipos de trigo para determinação do valor de cultivo e uso (VCU), em sistema de irrigação, no estado de Minas Gerais, no ano de 2008. In: REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 3., 2009, Veranópolis. Ata e resumos... Porto Alegre: Comissão Brasileira de Pesquisa de Trigo e Triticale: Fepagro; Veranóplis: ASAV; Passo Fundo: Embrapa Trigo, 2009. Melhoramento, trabalho 91. 3 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 19. | | LANGONE, M. A. P.; COELHO, M. A. Z.; MEDRONHO, R. A.; LEITE, S. G. F.; COURI, S. Characterization and partial purification of a polygalacturonase through dialysis process. Brazilian Journal of Chemical Engineering, São Paulo, v. 13, n. 1, p. 1-7, 1996.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 20. | | WEBBER, N. W.; COELHO, M. A. de O; TORRES, G. A. M.; CECON, P. R.; CONSOLI, L.; DEUNER, C. C. Non-2NS blast resistant wheat genotypes evaluated in the Brazilian Cerrado. Revista Ceres, Viçosa, v. 70, n. 3, p. 105-113, maio/jun, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Trigo. |
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| Registros recuperados : 77 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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