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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
06/08/2001 |
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Data da última atualização: |
22/01/2013 |
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Autoria: |
JOHNSON, D. E. |
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Título: |
Applied multivariate methods for data analysts. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Pacific Grove: Duxbury, 1998. |
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Páginas: |
567 p. |
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ISBN: |
0-534-23796-7 |
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Idioma: |
Inglês |
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Notas: |
Inclui disquete 3 1/2" (DQ-2001.00002). |
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Conteúdo: |
Applied multivariate methods. Sample correlations. Multivariate data plots. Eigenvalues and eigenvectors. Principal component analysis. Factor analysis. Discriminant analysis. Logistic regression methods. Cluster analysis. Mean vector and variance-covariance matrices. Multivariate analysis of variance. Predicion models and multivariate regression. Appendix A: Matrix results. Appndix B: Work attitudes survey. Appendix C: Family control study. |
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Palavras-Chave: |
Análise multivariada. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00871nam a2200157 a 4500
001 1007951
005 2013-01-22
008 1998 bl uuuu 00u1 u #d
020 $a0-534-23796-7
100 1 $aJOHNSON, D. E.
245 $aApplied multivariate methods for data analysts.
260 $aPacific Grove: Duxbury$c1998
300 $a567 p.
500 $aInclui disquete 3 1/2" (DQ-2001.00002).
520 $aApplied multivariate methods. Sample correlations. Multivariate data plots. Eigenvalues and eigenvectors. Principal component analysis. Factor analysis. Discriminant analysis. Logistic regression methods. Cluster analysis. Mean vector and variance-covariance matrices. Multivariate analysis of variance. Predicion models and multivariate regression. Appendix A: Matrix results. Appndix B: Work attitudes survey. Appendix C: Family control study.
653 $aAnálise multivariada
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria Tropical. Para informações adicionais entre em contato com cnpat.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Meio Ambiente. |
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Data corrente: |
10/01/2022 |
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Data da última atualização: |
25/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
GONDIM, R. S.; MAIA, A. de H. N.; TANIGUCHI, C. A. K.; MUNIZ, C. R.; ARAÚJO, T. A.; MELO, A. T. de; SILVA, J. da. |
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Afiliação: |
RUBENS SONSOL GONDIM, CNPAT; ALINE DE HOLANDA NUNES MAIA, CNPMA; CARLOS ALBERTO KENJI TANIGUCHI, CNPAT; CELLI RODRIGUES MUNIZ, CNPAT. |
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Título: |
Beneficial effect of biochar on irrigated dwarf-green coconut tree. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Atmosphere, v. 13, n. 1, article 51, 2022. |
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ISSN: |
2073-4433 |
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DOI: |
https://doi.org/10.3390/atmos13010051 |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Abstract: The coconut tree is considered one of the greatest consumers of irrigation water, ranging from 100 to 240 L day−1. The objective of the present study was to evaluate the effect of biochar application on decreased irrigation water needs in a 2-year irrigated dwarf coconut palm orchard field experiment. Biochar was characterized chemically and by electron microscope images. Biochar morphology presented several micropores indicating water retention potential. Amounts of biochar were tested (0, 5, 10, 20, 40 g of biochar per kg of soil), representing 0.0; 0.5; 1.0; 2.0; and 4.0 kg per plant. Micro sprinkler irrigation started following the planting of the 90-day old hybrid dwarf coconut seedlings. The impacts of the application of the biochar on the chemical attributes of the soil, biometry of the coconut plants, water storage in the 0–0.3 m soil layer, and the volume of irrigation water required by treatment were evaluated. After two years (2017 and 2018), the application of the biochar resulted in no statistically significant differences in the chemical attributes of the soil and biometric variables of plants between different treatments. The volume of annual irrigation water per plant versus biochar quantity demonstrated a decreasing effect, due to the increase of soil water storage. The dose of 40 g of biochar per kg of soil presented the highest two-year average soil water retention (0–0.3 m layer) among treatments (34, 36, 34, 38, and 45 mm, respectively), resulting in lower 2-year irrigation water demand (28, 36, 29, 28 and 20 L plant−1 day−1, respectively). MenosAbstract: The coconut tree is considered one of the greatest consumers of irrigation water, ranging from 100 to 240 L day−1. The objective of the present study was to evaluate the effect of biochar application on decreased irrigation water needs in a 2-year irrigated dwarf coconut palm orchard field experiment. Biochar was characterized chemically and by electron microscope images. Biochar morphology presented several micropores indicating water retention potential. Amounts of biochar were tested (0, 5, 10, 20, 40 g of biochar per kg of soil), representing 0.0; 0.5; 1.0; 2.0; and 4.0 kg per plant. Micro sprinkler irrigation started following the planting of the 90-day old hybrid dwarf coconut seedlings. The impacts of the application of the biochar on the chemical attributes of the soil, biometry of the coconut plants, water storage in the 0–0.3 m soil layer, and the volume of irrigation water required by treatment were evaluated. After two years (2017 and 2018), the application of the biochar resulted in no statistically significant differences in the chemical attributes of the soil and biometric variables of plants between different treatments. The volume of annual irrigation water per plant versus biochar quantity demonstrated a decreasing effect, due to the increase of soil water storage. The dose of 40 g of biochar per kg of soil presented the highest two-year average soil water retention (0–0.3 m layer) among treatments (34, 36, 34, 38, and 45 mm, res... Mostrar Tudo |
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Palavras-Chave: |
Adaptação; Alterações Climáticas; Casca de coco; Coconut husk. |
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Thesagro: |
Coco; Condicionador do Solo; Umidade do Solo. |
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Thesaurus NAL: |
Climate change; Coconuts; Plant adaptation; Sacramento Soil Moisture Accounting Model; Soil conditioners. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02658naa a2200361 a 4500
001 2138953
005 2023-01-25
008 2022 bl uuuu u00u1 u #d
022 $a2073-4433
024 7 $ahttps://doi.org/10.3390/atmos13010051$2DOI
100 1 $aGONDIM, R. S.
245 $aBeneficial effect of biochar on irrigated dwarf-green coconut tree.$h[electronic resource]
260 $c2022
520 $aAbstract: The coconut tree is considered one of the greatest consumers of irrigation water, ranging from 100 to 240 L day−1. The objective of the present study was to evaluate the effect of biochar application on decreased irrigation water needs in a 2-year irrigated dwarf coconut palm orchard field experiment. Biochar was characterized chemically and by electron microscope images. Biochar morphology presented several micropores indicating water retention potential. Amounts of biochar were tested (0, 5, 10, 20, 40 g of biochar per kg of soil), representing 0.0; 0.5; 1.0; 2.0; and 4.0 kg per plant. Micro sprinkler irrigation started following the planting of the 90-day old hybrid dwarf coconut seedlings. The impacts of the application of the biochar on the chemical attributes of the soil, biometry of the coconut plants, water storage in the 0–0.3 m soil layer, and the volume of irrigation water required by treatment were evaluated. After two years (2017 and 2018), the application of the biochar resulted in no statistically significant differences in the chemical attributes of the soil and biometric variables of plants between different treatments. The volume of annual irrigation water per plant versus biochar quantity demonstrated a decreasing effect, due to the increase of soil water storage. The dose of 40 g of biochar per kg of soil presented the highest two-year average soil water retention (0–0.3 m layer) among treatments (34, 36, 34, 38, and 45 mm, respectively), resulting in lower 2-year irrigation water demand (28, 36, 29, 28 and 20 L plant−1 day−1, respectively).
650 $aClimate change
650 $aCoconuts
650 $aPlant adaptation
650 $aSacramento Soil Moisture Accounting Model
650 $aSoil conditioners
650 $aCoco
650 $aCondicionador do Solo
650 $aUmidade do Solo
653 $aAdaptação
653 $aAlterações Climáticas
653 $aCasca de coco
653 $aCoconut husk
700 1 $aMAIA, A. de H. N.
700 1 $aTANIGUCHI, C. A. K.
700 1 $aMUNIZ, C. R.
700 1 $aARAÚJO, T. A.
700 1 $aMELO, A. T. de
700 1 $aSILVA, J. da
773 $tAtmosphere$gv. 13, n. 1, article 51, 2022.
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Embrapa Meio Ambiente (CNPMA) |
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