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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/08/2013 |
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Data da última atualização: |
31/10/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; SANTOS, A. B. dos. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF. |
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Título: |
Lowland rice growth and development and nutrient uptake during growth cycle. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, New York, v. 36, n. 12, p. 1841-1852, Oct. 2013. |
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DOI: |
10.1080/01904167.2013.816727 |
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Idioma: |
Inglês |
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Conteúdo: |
Rice is a staple food for more than 50%of the world's population and the majority of the global rice is produced from a lowland ecosystem. A greenhouse experiment was conducted with the objective to study lowland rice (cv. 'BRSGO Guara') growth, development, and nutrient uptake patterns during growth cycle. Growth observations and plant analysis were performed at initiation of tillering (IT), active tillering (AT), panicle initiation (PI), booting (B), flowering (F) and physiological maturity (PM). Plant height, number of leaves per culm, number of tillers per plant and maximum root length and root dry weight increased in a quadratic fashion with increasing plant age. Similarly, shoot dry weight increased linearly during growth cycle of the cultivar 'BRSGO Guara'. Concentration and accumulation of most of the macronutrients and micronutrients responded with a quadratic trend with the advancement of plant age. Plant growth parameters were significantly associated with shoot dry weight plus grain yield. Similarly, nutrient accumulation had a significant correlation with shoot dry weight plus grain yield, which indicated the importance of these nutrients in the lowland rice production. |
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Thesagro: |
Arroz; Nutriente; Oryza sativa. |
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Thesaurus Nal: |
Grain yield; Nutrient content; Rice; Roots. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01866naa a2200229 a 4500
001 1963382
005 2013-10-31
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1080/01904167.2013.816727$2DOI
100 1 $aFAGERIA, N. K.
245 $aLowland rice growth and development and nutrient uptake during growth cycle.$h[electronic resource]
260 $c2013
520 $aRice is a staple food for more than 50%of the world's population and the majority of the global rice is produced from a lowland ecosystem. A greenhouse experiment was conducted with the objective to study lowland rice (cv. 'BRSGO Guara') growth, development, and nutrient uptake patterns during growth cycle. Growth observations and plant analysis were performed at initiation of tillering (IT), active tillering (AT), panicle initiation (PI), booting (B), flowering (F) and physiological maturity (PM). Plant height, number of leaves per culm, number of tillers per plant and maximum root length and root dry weight increased in a quadratic fashion with increasing plant age. Similarly, shoot dry weight increased linearly during growth cycle of the cultivar 'BRSGO Guara'. Concentration and accumulation of most of the macronutrients and micronutrients responded with a quadratic trend with the advancement of plant age. Plant growth parameters were significantly associated with shoot dry weight plus grain yield. Similarly, nutrient accumulation had a significant correlation with shoot dry weight plus grain yield, which indicated the importance of these nutrients in the lowland rice production.
650 $aGrain yield
650 $aNutrient content
650 $aRice
650 $aRoots
650 $aArroz
650 $aNutriente
650 $aOryza sativa
700 1 $aSANTOS, A. B. dos
773 $tJournal of Plant Nutrition, New York$gv. 36, n. 12, p. 1841-1852, Oct. 2013.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
23/08/2016 |
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Data da última atualização: |
18/01/2017 |
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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: |
VERAS, M. de S.; RAMOS, M. L. G.; OLIVEIRA, D. N. S.; FIGUEIREDO, C. C. de; CARVALHO, A. M. de; PULROLNIK, K.; SOUZA, K. W. de. |
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Afiliação: |
ARMINDA MOREIRA DE CARVALHO, CPAC; KARINA PULROLNIK, CPAC; KLEBERSON WORSLLEY DE SOUZA, CPAC. |
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Título: |
Cover crops and nitrogen fertilization effects on nitrogen soil fractions under corn cultivation in a no-tillage system. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 40, 2016. |
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Páginas: |
12 p. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
ABSTRACT: The use of cover crops has recently increased and represents an essential practice for the sustainability of no-tillage systems in the Cerrado region. However, there is little information on the effects of nitrogen fertilization and cover crop use on nitrogen soil fractions. This study assessed changes in the N forms in soil cropped to cover crops prior to corn growing. The experiment consisted of a randomized complete block design arranged in split-plots with three replications. Cover crops were tested in the plots, and the N topdressing fertilization was assessed in the subplots. The following cover species were planted in succession to corn for eight years: Urochloa ruziziensis, Canavalia brasiliensis M. ex Benth, Cajanus cajan (L.) Millsp, and Sorghum bicolor (L.) Moench. After corn harvesting, the soil was sampled at depths of 0.00-0.10 and 0.10-0.20 m. The cover crops showed different effects at different soil depths. The soil cultivated with U. ruziziensis showed higher contents of total-N and particulate-N than the soil cultivated with C. cajan. Particulate-N was the most sensitive to changes in the soil management among the fractions of N assessed. The soil under N topdressing showed a lower content of available-N in the 0.10-0.20 m layer, which may be caused by the season in which the sampling was conducted or the greater uptake of the available-N by corn. |
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Palavras-Chave: |
Adubação e nutrição de culturas anuais; Cultura anual; Fertilization and nutrition of annual crops; Nutrição de plantas. |
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Thesagro: |
Adubação; Manejo do solo; Nutrição vegetal. |
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Thesaurus NAL: |
plant nutrition; soil management. |
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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/item/153503/1/Arminda-Cover-crops.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146708/1/0100-0683-rbcs-18069657rbcs20150092.pdf
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Marc: |
LEADER 02363naa a2200313 a 4500
001 2061140
005 2017-01-18
008 2016 bl uuuu u00u1 u #d
100 1 $aVERAS, M. de S.
245 $aCover crops and nitrogen fertilization effects on nitrogen soil fractions under corn cultivation in a no-tillage system.
260 $c2016
300 $a12 p.
520 $aABSTRACT: The use of cover crops has recently increased and represents an essential practice for the sustainability of no-tillage systems in the Cerrado region. However, there is little information on the effects of nitrogen fertilization and cover crop use on nitrogen soil fractions. This study assessed changes in the N forms in soil cropped to cover crops prior to corn growing. The experiment consisted of a randomized complete block design arranged in split-plots with three replications. Cover crops were tested in the plots, and the N topdressing fertilization was assessed in the subplots. The following cover species were planted in succession to corn for eight years: Urochloa ruziziensis, Canavalia brasiliensis M. ex Benth, Cajanus cajan (L.) Millsp, and Sorghum bicolor (L.) Moench. After corn harvesting, the soil was sampled at depths of 0.00-0.10 and 0.10-0.20 m. The cover crops showed different effects at different soil depths. The soil cultivated with U. ruziziensis showed higher contents of total-N and particulate-N than the soil cultivated with C. cajan. Particulate-N was the most sensitive to changes in the soil management among the fractions of N assessed. The soil under N topdressing showed a lower content of available-N in the 0.10-0.20 m layer, which may be caused by the season in which the sampling was conducted or the greater uptake of the available-N by corn.
650 $aplant nutrition
650 $asoil management
650 $aAdubação
650 $aManejo do solo
650 $aNutrição vegetal
653 $aAdubação e nutrição de culturas anuais
653 $aCultura anual
653 $aFertilization and nutrition of annual crops
653 $aNutrição de plantas
700 1 $aRAMOS, M. L. G.
700 1 $aOLIVEIRA, D. N. S.
700 1 $aFIGUEIREDO, C. C. de
700 1 $aCARVALHO, A. M. de
700 1 $aPULROLNIK, K.
700 1 $aSOUZA, K. W. de
773 $tRevista Brasileira de Ciência do Solo$gv. 40, 2016.
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