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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
31/05/2023 |
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Data da última atualização: |
31/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NASCIMENTO, W.; MARTORANO, L. G.; ARAÚJO, L. B. de; SOUSA, J. T. R. de; DIAS, C. T. dos S. |
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Afiliação: |
WERLLESON NASCIMENTO, UNIVERSIDADE DE SÃO PAULO; LUCIETA GUERREIRO MARTORANO, CPATU; LÚCIO BORGES DE ARAÚJO, UNIVERSIDADE FEDERAL DE UBERLÂNDIA; JOÃO THIAGO RODRIGUES DE SOUSA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; CARLOS TADEU DOS SANTOS DIAS, UNIVERSIDADE DE SÃO PAULO. |
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Título: |
Agrometeorological conditions in western Pará compared to agricultural production variables using principal component analysis. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Biotechnologie, Agronomie, Société et Environnement, v. 27, n. 2, p. 87-95, 2023. |
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DOI: |
10.25518/1780-4507.20291 |
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Idioma: |
Inglês |
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Conteúdo: |
Description of the subject. Since the beginning of the twenty-first century, soybean cultivation areas have been expanding in the Legal Amazon. Among the factors that contribute to the process of expansion of cultivation of grains in the Amazon, favorable climate conditions are one of the most important, and these include high rainfall indices and good thermal regimes during the cultivation period. Objectives. In this context, the objective of this study was to describe responses of soybean production as a function of climate variables, considering data from an important grain production center in the Amazon. Method. Principal Component Analysis (PCA) was used including the following response variables: rainfall (R), air temperature (T), real evapotranspiration, water stress (WST) and surplus, soybean area harvested (HVA), quantity produced (PD), occurrence of El Niño and La Niña (LAN). Results. Production variables were negatively correlated with precipitation and water surplus. There was also a negative correlation between El Niño, temperature and water stress. The variables that had greater weight in component 1 were R, T and WST. Considering component 2, the variables that most contributed to the variation were HVA, PD and LAN. Conclusions. The strong or severe occurrence of La Niña influences the soybean production in the region of Belterra-PA, due to the high rainfall index causing excess water in the soil, leading the plants to stress. The moderate occurrence of La Niña positively influences soybean production in the region to maintain the water supply at adequate levels for the plants. These results show the importance of monitoring climate variables for agriculture in the region MenosDescription of the subject. Since the beginning of the twenty-first century, soybean cultivation areas have been expanding in the Legal Amazon. Among the factors that contribute to the process of expansion of cultivation of grains in the Amazon, favorable climate conditions are one of the most important, and these include high rainfall indices and good thermal regimes during the cultivation period. Objectives. In this context, the objective of this study was to describe responses of soybean production as a function of climate variables, considering data from an important grain production center in the Amazon. Method. Principal Component Analysis (PCA) was used including the following response variables: rainfall (R), air temperature (T), real evapotranspiration, water stress (WST) and surplus, soybean area harvested (HVA), quantity produced (PD), occurrence of El Niño and La Niña (LAN). Results. Production variables were negatively correlated with precipitation and water surplus. There was also a negative correlation between El Niño, temperature and water stress. The variables that had greater weight in component 1 were R, T and WST. Considering component 2, the variables that most contributed to the variation were HVA, PD and LAN. Conclusions. The strong or severe occurrence of La Niña influences the soybean production in the region of Belterra-PA, due to the high rainfall index causing excess water in the soil, leading the plants to stress. The moderate occurrence of La Ni... Mostrar Tudo |
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Thesagro: |
Abastecimento de Água; Evapotranspiração; Glycine Max. |
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Thesaurus Nal: |
Amazonia; Evapotranspiration; Water supply. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154133/1/-nascimento-2023.pdf
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Marc: |
LEADER 02555naa a2200253 a 4500
001 2154133
005 2023-05-31
008 2023 bl uuuu u00u1 u #d
024 7 $a10.25518/1780-4507.20291$2DOI
100 1 $aNASCIMENTO, W.
245 $aAgrometeorological conditions in western Pará compared to agricultural production variables using principal component analysis.$h[electronic resource]
260 $c2023
520 $aDescription of the subject. Since the beginning of the twenty-first century, soybean cultivation areas have been expanding in the Legal Amazon. Among the factors that contribute to the process of expansion of cultivation of grains in the Amazon, favorable climate conditions are one of the most important, and these include high rainfall indices and good thermal regimes during the cultivation period. Objectives. In this context, the objective of this study was to describe responses of soybean production as a function of climate variables, considering data from an important grain production center in the Amazon. Method. Principal Component Analysis (PCA) was used including the following response variables: rainfall (R), air temperature (T), real evapotranspiration, water stress (WST) and surplus, soybean area harvested (HVA), quantity produced (PD), occurrence of El Niño and La Niña (LAN). Results. Production variables were negatively correlated with precipitation and water surplus. There was also a negative correlation between El Niño, temperature and water stress. The variables that had greater weight in component 1 were R, T and WST. Considering component 2, the variables that most contributed to the variation were HVA, PD and LAN. Conclusions. The strong or severe occurrence of La Niña influences the soybean production in the region of Belterra-PA, due to the high rainfall index causing excess water in the soil, leading the plants to stress. The moderate occurrence of La Niña positively influences soybean production in the region to maintain the water supply at adequate levels for the plants. These results show the importance of monitoring climate variables for agriculture in the region
650 $aAmazonia
650 $aEvapotranspiration
650 $aWater supply
650 $aAbastecimento de Água
650 $aEvapotranspiração
650 $aGlycine Max
700 1 $aMARTORANO, L. G.
700 1 $aARAÚJO, L. B. de
700 1 $aSOUSA, J. T. R. de
700 1 $aDIAS, C. T. dos S.
773 $tBiotechnologie, Agronomie, Société et Environnement$gv. 27, n. 2, p. 87-95, 2023.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
26/06/2023 |
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Data da última atualização: |
26/06/2023 |
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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: |
SILVA, G. I. N.; JARDIM, A. M. da R. F.; SOUZA, M. de S.; ARAÚJO JÚNIOR, G. do N.; MORAIS, J. E. F. de; SOUZA, L. S. B. de; SOUZA, C. A. A. de; ALVES, C. P.; ARAUJO, G. G. L. de; MONTENEGRO, A. A. de A.; LIMA, B. L. de C.; SILVA, T. G. F. da. |
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Afiliação: |
GABRIEL ITALO NOVAES DA SILVA, Universidade Federal Rural de Pernambuco; ALEXANDRE MANIÇOBA DA ROSA FERRAZ JARDIM, Universidade Federal Rural de Pernambuco; MARCONDES DE SÁ SOUZA, Universidade Federal Rural de Pernambuco; GEORGE DO NASCIMENTO ARAÚJO JÚNIOR, Universidade Federal Rural de Pernambuco; JOSÉ EDSON FLORENTINO DE MORAIS, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE; LUCIANA SANDRA BASTOS DE SOUZA, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE; CARLOS ANDRÉ ALVES DE SOUZA, Universidade Federal Rural de Pernambuco; CLEBER PEREIRA ALVES, Universidade Federal Rural de Pernambuco; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; ABELARDO ANTÔNIO DE ASSUNÇÃO MONTENEGRO, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE; BRENO LEONAN DE CARVALHO LIMA, INSA; THIERES GEORGE FREIRE DA SILVA, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE. |
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Título: |
Combined agricultural practices in millet and cactus: phyllochron, structural characteristics and relations with yield. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Scientia Agrícola, v. 80, e20220046, 2023. |
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ISSN: |
1678-992X |
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DOI: |
http://doi.org/10.1590/1678-992X-2022-0046 |
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Idioma: |
Inglês |
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Conteúdo: |
Variation in rainfall affects crops; therefore, agricultural practices become essential for forage production in semi-arid regions. This study aimed to evaluate the influence of different agricultural practices on phyllochron, structural characteristics of forage cactus and millet, and their relations with crop yield using the principal component analysis (PCA). The design was in randomized blocks, with six treatments: sole cropped cactus without straw mulching, sole cropped cactus with straw mulching, sole cropped millet without straw mulching, sole cropped millet with straw mulching, and cactus intercropping with millet, with and without straw mulching, each with four replicates. There were three cactus cycles and nine millet cycles (three cycles of cultivars BRS1501 and six of IPA Bulk-1-BF). Biometric parameters were evaluated monthly, while yield was determined after the crop harvest. Phyllochron was determined with the regression analysis. The PCA was applied to structural characteristics and yield. The systems adopted did not influence the structural characteristics of cactus and millet (p > 0.05), except for cladode thickness, which increased with straw mulching. Phyllochron of the millet reduced when the crop was intercropped. The structural characteristics of cladode length, width, and thickness influenced crop yield, mainly in systems with straw mulching. Straw mulching and intercropping alter phyllochron of cactus and millet. The adoption of straw mulching has a more significant relationship with cactus yield, whereas biometric variables influence crop yield for millet, not the cropping system. MenosVariation in rainfall affects crops; therefore, agricultural practices become essential for forage production in semi-arid regions. This study aimed to evaluate the influence of different agricultural practices on phyllochron, structural characteristics of forage cactus and millet, and their relations with crop yield using the principal component analysis (PCA). The design was in randomized blocks, with six treatments: sole cropped cactus without straw mulching, sole cropped cactus with straw mulching, sole cropped millet without straw mulching, sole cropped millet with straw mulching, and cactus intercropping with millet, with and without straw mulching, each with four replicates. There were three cactus cycles and nine millet cycles (three cycles of cultivars BRS1501 and six of IPA Bulk-1-BF). Biometric parameters were evaluated monthly, while yield was determined after the crop harvest. Phyllochron was determined with the regression analysis. The PCA was applied to structural characteristics and yield. The systems adopted did not influence the structural characteristics of cactus and millet (p > 0.05), except for cladode thickness, which increased with straw mulching. Phyllochron of the millet reduced when the crop was intercropped. The structural characteristics of cladode length, width, and thickness influenced crop yield, mainly in systems with straw mulching. Straw mulching and intercropping alter phyllochron of cactus and millet. The adoption of straw mulching has a ... Mostrar Tudo |
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Palavras-Chave: |
Análise do componente principal; Cobertura de palha; Cobertura morta de palha; Consórcio; Filocrono; Milho-miúdo sem cobertura de palha; Região semiárida. |
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Thesagro: |
Cobertura Morta; Consorciação de Cultura; Forragem; Milheto; Monocultura; Palma Forrageira; Sistema de Cultivo. |
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Thesaurus NAL: |
Cactus pears; Forage; Intercropping; Millets. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154608/1/Combined-agricultural-practices-in-millet-and-cactus-phyllochron-structural-characteristics-and-relations-with-yield-2023.pdf
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Marc: |
LEADER 03119naa a2200493 a 4500
001 2154608
005 2023-06-26
008 2023 bl uuuu u00u1 u #d
022 $a1678-992X
024 7 $ahttp://doi.org/10.1590/1678-992X-2022-0046$2DOI
100 1 $aSILVA, G. I. N.
245 $aCombined agricultural practices in millet and cactus$bphyllochron, structural characteristics and relations with yield.$h[electronic resource]
260 $c2023
520 $aVariation in rainfall affects crops; therefore, agricultural practices become essential for forage production in semi-arid regions. This study aimed to evaluate the influence of different agricultural practices on phyllochron, structural characteristics of forage cactus and millet, and their relations with crop yield using the principal component analysis (PCA). The design was in randomized blocks, with six treatments: sole cropped cactus without straw mulching, sole cropped cactus with straw mulching, sole cropped millet without straw mulching, sole cropped millet with straw mulching, and cactus intercropping with millet, with and without straw mulching, each with four replicates. There were three cactus cycles and nine millet cycles (three cycles of cultivars BRS1501 and six of IPA Bulk-1-BF). Biometric parameters were evaluated monthly, while yield was determined after the crop harvest. Phyllochron was determined with the regression analysis. The PCA was applied to structural characteristics and yield. The systems adopted did not influence the structural characteristics of cactus and millet (p > 0.05), except for cladode thickness, which increased with straw mulching. Phyllochron of the millet reduced when the crop was intercropped. The structural characteristics of cladode length, width, and thickness influenced crop yield, mainly in systems with straw mulching. Straw mulching and intercropping alter phyllochron of cactus and millet. The adoption of straw mulching has a more significant relationship with cactus yield, whereas biometric variables influence crop yield for millet, not the cropping system.
650 $aCactus pears
650 $aForage
650 $aIntercropping
650 $aMillets
650 $aCobertura Morta
650 $aConsorciação de Cultura
650 $aForragem
650 $aMilheto
650 $aMonocultura
650 $aPalma Forrageira
650 $aSistema de Cultivo
653 $aAnálise do componente principal
653 $aCobertura de palha
653 $aCobertura morta de palha
653 $aConsórcio
653 $aFilocrono
653 $aMilho-miúdo sem cobertura de palha
653 $aRegião semiárida
700 1 $aJARDIM, A. M. da R. F.
700 1 $aSOUZA, M. de S.
700 1 $aARAÚJO JÚNIOR, G. do N.
700 1 $aMORAIS, J. E. F. de
700 1 $aSOUZA, L. S. B. de
700 1 $aSOUZA, C. A. A. de
700 1 $aALVES, C. P.
700 1 $aARAUJO, G. G. L. de
700 1 $aMONTENEGRO, A. A. de A.
700 1 $aLIMA, B. L. de C.
700 1 $aSILVA, T. G. F. da
773 $tScientia Agrícola$gv. 80, e20220046, 2023.
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