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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Soja. |
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Data corrente: |
26/02/2014 |
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Data da última atualização: |
04/06/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; MOREIRA, A.; MORAES, L. A. C.; MORAES, M. F. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ADONIS MOREIRA, CNPSO; LARISSA ALEXANDRA CARDOSO MORAES, CNPSO; M. F. MORAES. |
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Título: |
Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 45, n. 5, p. 555-569, 2014. |
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ISSN: |
0010-3624 |
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DOI: |
10.1080/00103624.2013.861908 |
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Idioma: |
Inglês |
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Conteúdo: |
Roots are important organs that supply water and nutrients to growing plants. Data related to root growth and nutrient uptake by tropical legume cover crops are limited. The objective of this study was to evaluate root growth of tropical legume cover crops and nutrient uptake and use efficiency under different phosphorus (P) levels. The P levels used were 0 (low), 100 (medium), and 200 (high) mg kg−1 of soil, and five cover crops were evaluated. Root dry weight, maximum root length, and specific root length were significantly influenced by P and cover crop treatments. Maximum values of these root growth parameters were achieved with the addition of 100 mg P kg−1 soil. The P × cover crops interactions for all the macro- and micronutrients, except manganese (Mn), were significant, indicating variation in uptake pattern of these nutrients by cover crops with the variation in P rates. Overall, uptake pattern of macronutrients was in the order of nitrogen (N) > calcium (Ca) > potassium (K) > magnesium (Mg) > P and micronutrient uptake pattern was in the order of iron (Fe) > Mn > zinc (Zn) > copper (Cu). Cover crops which produced maximum root dry weight also accumulated greater amount of nutrients, including N, compared to cover crops, which produced lower root dry weight. Greater uptake of N compared to other nutrients by cover crops indicated that use of cover crops in the cropping systems could reduce loss of nitrate (NO3 −) from soil?plant systems. Increase in root length and root dry weight with the addition of P can improve nutrient uptake from the soil and lessen loss of macro- and micronutrients from the soil?plant systems. MenosRoots are important organs that supply water and nutrients to growing plants. Data related to root growth and nutrient uptake by tropical legume cover crops are limited. The objective of this study was to evaluate root growth of tropical legume cover crops and nutrient uptake and use efficiency under different phosphorus (P) levels. The P levels used were 0 (low), 100 (medium), and 200 (high) mg kg−1 of soil, and five cover crops were evaluated. Root dry weight, maximum root length, and specific root length were significantly influenced by P and cover crop treatments. Maximum values of these root growth parameters were achieved with the addition of 100 mg P kg−1 soil. The P × cover crops interactions for all the macro- and micronutrients, except manganese (Mn), were significant, indicating variation in uptake pattern of these nutrients by cover crops with the variation in P rates. Overall, uptake pattern of macronutrients was in the order of nitrogen (N) > calcium (Ca) > potassium (K) > magnesium (Mg) > P and micronutrient uptake pattern was in the order of iron (Fe) > Mn > zinc (Zn) > copper (Cu). Cover crops which produced maximum root dry weight also accumulated greater amount of nutrients, including N, compared to cover crops, which produced lower root dry weight. Greater uptake of N compared to other nutrients by cover crops indicated that use of cover crops in the cropping systems could reduce loss of nitrate (NO3 −) from soil?plant systems. Increase ... Mostrar Tudo |
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Thesagro: |
Cobertura vegetal; Fertilizante fosfatado; Fisiologia vegetal; Fósforo; Microelemento; Raiz; Solo ácido; Transporte de nutriente. |
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Thesaurus Nal: |
Cover crops; Plant micronutrients; Plant physiology; Root growth; Shoots. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02711naa a2200337 a 4500
001 1981311
005 2014-06-04
008 2014 bl uuuu u00u1 u #d
022 $a0010-3624
024 7 $a10.1080/00103624.2013.861908$2DOI
100 1 $aFAGERIA, N. K.
245 $aRoot growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
260 $c2014
520 $aRoots are important organs that supply water and nutrients to growing plants. Data related to root growth and nutrient uptake by tropical legume cover crops are limited. The objective of this study was to evaluate root growth of tropical legume cover crops and nutrient uptake and use efficiency under different phosphorus (P) levels. The P levels used were 0 (low), 100 (medium), and 200 (high) mg kg−1 of soil, and five cover crops were evaluated. Root dry weight, maximum root length, and specific root length were significantly influenced by P and cover crop treatments. Maximum values of these root growth parameters were achieved with the addition of 100 mg P kg−1 soil. The P × cover crops interactions for all the macro- and micronutrients, except manganese (Mn), were significant, indicating variation in uptake pattern of these nutrients by cover crops with the variation in P rates. Overall, uptake pattern of macronutrients was in the order of nitrogen (N) > calcium (Ca) > potassium (K) > magnesium (Mg) > P and micronutrient uptake pattern was in the order of iron (Fe) > Mn > zinc (Zn) > copper (Cu). Cover crops which produced maximum root dry weight also accumulated greater amount of nutrients, including N, compared to cover crops, which produced lower root dry weight. Greater uptake of N compared to other nutrients by cover crops indicated that use of cover crops in the cropping systems could reduce loss of nitrate (NO3 −) from soil?plant systems. Increase in root length and root dry weight with the addition of P can improve nutrient uptake from the soil and lessen loss of macro- and micronutrients from the soil?plant systems.
650 $aCover crops
650 $aPlant micronutrients
650 $aPlant physiology
650 $aRoot growth
650 $aShoots
650 $aCobertura vegetal
650 $aFertilizante fosfatado
650 $aFisiologia vegetal
650 $aFósforo
650 $aMicroelemento
650 $aRaiz
650 $aSolo ácido
650 $aTransporte de nutriente
700 1 $aMOREIRA, A.
700 1 $aMORAES, L. A. C.
700 1 $aMORAES, M. F.
773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 45, n. 5, p. 555-569, 2014.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
Tipo/Formato |
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Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
25/04/2018 |
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Data da última atualização: |
02/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
AIRES, P. S. R.; GAMBARRA-NETO, F. F.; COUTINHO, W. M.; ARAUJO, A. E. de; SILVA, G. F. da; GOUVEIA, J. P. G.; MEDEIROS, E. P. de. |
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Afiliação: |
Priscila S.R. Aires, Federal University of Campina Grande; Francisco F. Gambarra-Neto, Federal University of Paraiba; WIRTON MACEDO COUTINHO, CNPA; ALDERI EMIDIO DE ARAUJO, CNPA; GILVAN FERREIRA DA SILVA, CPAA; Josivanda P.G. Gouveia, Federal University of Campina Grande; EVERALDO PAULO DE MEDEIROS, CNPA. |
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Título: |
Near infrared hyperspectral images and pattern recognition techniques used to identify etiological agents of cotton anthracnose and ramulosis. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Spectral Imaging, v. 7, a8, p. 1-17, 2018. |
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DOI: |
https://doi.org/10.1255/jsi.2018.a8 |
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Idioma: |
Inglês |
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Conteúdo: |
Hyperspectral imaging near infrared (HSI-NIR) has the potential to be used as a non-destructive approach for the analysis of new microbiological matrices of agriculture interest. This article describes a new method for accurately and rapidly classifying the etiological agents Colletotrichum gossypii (CG) and C. gossypii var. cephalosporioides (CGC) grown in a culture medium, using scattering reflectance HSI-NIR and multivariate pattern recognition analysis. |
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Palavras-Chave: |
Cotton crop; Fungal identification; Fungal taxonomy; Non-destructive analysis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01304naa a2200253 a 4500
001 2090854
005 2018-05-02
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1255/jsi.2018.a8$2DOI
100 1 $aAIRES, P. S. R.
245 $aNear infrared hyperspectral images and pattern recognition techniques used to identify etiological agents of cotton anthracnose and ramulosis.$h[electronic resource]
260 $c2018
520 $aHyperspectral imaging near infrared (HSI-NIR) has the potential to be used as a non-destructive approach for the analysis of new microbiological matrices of agriculture interest. This article describes a new method for accurately and rapidly classifying the etiological agents Colletotrichum gossypii (CG) and C. gossypii var. cephalosporioides (CGC) grown in a culture medium, using scattering reflectance HSI-NIR and multivariate pattern recognition analysis.
653 $aCotton crop
653 $aFungal identification
653 $aFungal taxonomy
653 $aNon-destructive analysis
700 1 $aGAMBARRA-NETO, F. F.
700 1 $aCOUTINHO, W. M.
700 1 $aARAUJO, A. E. de
700 1 $aSILVA, G. F. da
700 1 $aGOUVEIA, J. P. G.
700 1 $aMEDEIROS, E. P. de
773 $tJournal of Spectral Imaging$gv. 7, a8, p. 1-17, 2018.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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