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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
11/05/2000 |
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Data da última atualização: |
04/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MAGALHAES, J. V. de; ALVES, V. M. C.; NOVAIS, R. F.; MOSQUIM, P. R.; MAGALHAES, J. R.; BAHIA FILHO, A. F. C.; HUBER, D. M. |
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Título: |
Influence of phosphorus stress on Ammonium uptake by maize. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v.23, n.2, p.263-273, 2000. |
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Idioma: |
Inglês |
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Notas: |
Produção científica/2000/CENARGEN. |
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Conteúdo: |
The effect of phosphorus (P) starvation on ammonium (NH4) uptake was evaluated by growing single-cross seedlings of the make progenitor of the maize double-cross hybrid BR 201 in nutrient solution. The kinetics of NH4 uptake were measured after P starvation and non-starvation periodo of 2, 4, 6, 8 and 10 days. The effect of P addition during the study period (resupply) was also tested. Ammonium uptake decreased 45,7% after two days of P stress completed to the fully P-sufficient control. Ammonium uptake decreased 83,0% where P was withheld for 10 days. The decline in NH4 uptake was partially reversed when P was resupplied during the early periods of P deficiency, but this effect diminished as the P stress increased. These results suggest that maize plants are physiologically dependent on NH4, rather than nitrate (NO3) when under P stress. |
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Palavras-Chave: |
Ammonium; Ammonium uptake; Amonio; BR 201; Estresse; Hybrid; Maize; Phosphorus stress. |
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Thesagro: |
Absorção; Amônia; Fósforo; Milho Hibrido; Stress; Zea Mays. |
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Thesaurus Nal: |
phosphorus. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/177664/1/ID-221641.pdf
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Marc: |
LEADER 01852naa a2200385 a 4500
001 1183491
005 2022-05-04
008 2000 bl uuuu u00u1 u #d
100 1 $aMAGALHAES, J. V. de
245 $aInfluence of phosphorus stress on Ammonium uptake by maize.$h[electronic resource]
260 $c2000
500 $aProdução científica/2000/CENARGEN.
520 $aThe effect of phosphorus (P) starvation on ammonium (NH4) uptake was evaluated by growing single-cross seedlings of the make progenitor of the maize double-cross hybrid BR 201 in nutrient solution. The kinetics of NH4 uptake were measured after P starvation and non-starvation periodo of 2, 4, 6, 8 and 10 days. The effect of P addition during the study period (resupply) was also tested. Ammonium uptake decreased 45,7% after two days of P stress completed to the fully P-sufficient control. Ammonium uptake decreased 83,0% where P was withheld for 10 days. The decline in NH4 uptake was partially reversed when P was resupplied during the early periods of P deficiency, but this effect diminished as the P stress increased. These results suggest that maize plants are physiologically dependent on NH4, rather than nitrate (NO3) when under P stress.
650 $aphosphorus
650 $aAbsorção
650 $aAmônia
650 $aFósforo
650 $aMilho Hibrido
650 $aStress
650 $aZea Mays
653 $aAmmonium
653 $aAmmonium uptake
653 $aAmonio
653 $aBR 201
653 $aEstresse
653 $aHybrid
653 $aMaize
653 $aPhosphorus stress
700 1 $aALVES, V. M. C.
700 1 $aNOVAIS, R. F.
700 1 $aMOSQUIM, P. R.
700 1 $aMAGALHAES, J. R.
700 1 $aBAHIA FILHO, A. F. C.
700 1 $aHUBER, D. M.
773 $tJournal of Plant Nutrition$gv.23, n.2, p.263-273, 2000.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Biblioteca |
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Origem |
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Classificação |
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Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
10/12/2019 |
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Data da última atualização: |
10/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
XAVIER, W. D.; CARNEIRO, L. F.; GUIMARÃES, C. M.; SILVA, J. V. de S.; PINTO, F. A.; RIBEIRO, D. O.; SOUSA, V. S.; RESENDE, A. V. de. |
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Afiliação: |
Warlles Domingos Xavier, Goiano Federal Institute; Leandro Flávio Carneiro, Universidade Federal de São João Del-Rei; Claudinei Martins Guimarães, Universidade Federal de Viçosa; João Vitor de Souza Silva, Goiano Federal Institute; Flávio Araújo Pinto, Universidade Federal de São João Del-Rei; Diego Oliveira Ribeiro, Goiano Federal Institute; Vinicius Silva Sousa, Universidade Federal de Goiás; ALVARO VILELA DE RESENDE, CNPMS. |
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Título: |
Doses and application seasons of potassium in the soybean-corn succession in soil with improved fertility in the Southwest of Goiás. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 11, n. 4, p. 307-317, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Soils with improved fertility indicate opportunities for more rational use of fertilizers. The objective of this study was to evaluate the management of potassium fertilization in the succession of soybean-corn in soil with improved fertility, in the southwestern region of the state, Goiás. The experiment was set in 5×3 factorial scheme, arranged in randomized blocks with four repetitions. The treatments consisted of the combination of potassium doses (0, 40, 80, 120 and 160 kg ha-1 of K2O) and seasons of application (100% of the dose in pre-planting, 100% of the dose in coverage and in installments with 50% of the dose in pre-planting + 50% in coverage). The best performance of soybean, considering grain yield, was obtained with the parceled application of 80 kg ha-1 of K2O, with production of 3.6 Mg ha-1. The highest corn production was obtained with the anticipated application of 160 kg ha-1 of K2O in soybean. In the management of potassium fertilization in improved fertility soil in the soybean-corn succession, the parceled application of 120 kg ha-1 of K2O kept the available K reserve in the soil constant when compared to its initial content. |
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Palavras-Chave: |
Ciclagem de nutrientes. |
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Thesagro: |
Glycine Max; Grão; Plantio Direto; Rendimento; Soja. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206569/1/Doses-application.pdf
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Marc: |
LEADER 02002naa a2200277 a 4500
001 2116452
005 2019-12-10
008 2019 bl uuuu u00u1 u #d
100 1 $aXAVIER, W. D.
245 $aDoses and application seasons of potassium in the soybean-corn succession in soil with improved fertility in the Southwest of Goiás.$h[electronic resource]
260 $c2019
520 $aSoils with improved fertility indicate opportunities for more rational use of fertilizers. The objective of this study was to evaluate the management of potassium fertilization in the succession of soybean-corn in soil with improved fertility, in the southwestern region of the state, Goiás. The experiment was set in 5×3 factorial scheme, arranged in randomized blocks with four repetitions. The treatments consisted of the combination of potassium doses (0, 40, 80, 120 and 160 kg ha-1 of K2O) and seasons of application (100% of the dose in pre-planting, 100% of the dose in coverage and in installments with 50% of the dose in pre-planting + 50% in coverage). The best performance of soybean, considering grain yield, was obtained with the parceled application of 80 kg ha-1 of K2O, with production of 3.6 Mg ha-1. The highest corn production was obtained with the anticipated application of 160 kg ha-1 of K2O in soybean. In the management of potassium fertilization in improved fertility soil in the soybean-corn succession, the parceled application of 120 kg ha-1 of K2O kept the available K reserve in the soil constant when compared to its initial content.
650 $aGlycine Max
650 $aGrão
650 $aPlantio Direto
650 $aRendimento
650 $aSoja
653 $aCiclagem de nutrientes
700 1 $aCARNEIRO, L. F.
700 1 $aGUIMARÃES, C. M.
700 1 $aSILVA, J. V. de S.
700 1 $aPINTO, F. A.
700 1 $aRIBEIRO, D. O.
700 1 $aSOUSA, V. S.
700 1 $aRESENDE, A. V. de
773 $tJournal of Agricultural Science$gv. 11, n. 4, p. 307-317, 2019.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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