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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 Agricultura Digital; Embrapa Arroz e Feijão. |
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Data corrente: |
31/10/1994 |
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Data da última atualização: |
24/06/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; WRIGHT, R. J.; BALIGAR, V. C.; CARVALHO, J. R. P. de. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; R. J. WRIGHT, USDA; V. C. BALIGAR, USDA; JOSE RUY PORTO DE CARVALHO, CNPAF. |
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Título: |
Upland rice response to potassium fertilization on a Brazilian oxisol. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Fertilizer Research, Dordrecht, v. 21, p. 141-147, 1990. |
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Idioma: |
Inglês |
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Conteúdo: |
Even though K is an essential nutrient, the response of upland rice to K fertilization under field conditions has not been adequately documented. This research was conducted to examine the influence of K fertilization on yield of upland rice (Oryza sativa L.). In the first three years, K was broadcast at rates of 0, 42, 84, 126 and 168 kg K ha-1. In the last two years K was banded at rates of 0, 25, 50, 75 and 100 kg K ha-1. The experiment was conducted on an Oxisol (Typic Haplustox) during five consecutive years. Potassium significantly increased grain yields and dry matter production but response varied from cultivar to cultivar and year to year. Drought and panicle neck blast played an important role in limiting upland rice yield response to K fertilization. Potassium application rates associated with maximum grain yield varied from 83 to 127 kg K ha-1 when K was broadcast and from 47 to 67 Kg K ha-1 when K was banded. Previous broadcast K, favorable weather and blast resistant cultivars probably contributed to higher yields with K banding in the fourth and fifth growing seasons. |
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Palavras-Chave: |
Adubação potássica; Arroz de sequeiro; Fertilization; Soil K level; Upland rice. |
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Thesagro: |
Arroz; Cerrado; Oryza Sativa; Oxisol; Potássio. |
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Thesaurus Nal: |
potassium. |
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Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01881naa a2200289 a 4500
001 1197875
005 2020-06-24
008 1990 bl uuuu u00u1 u #d
100 1 $aFAGERIA, N. K.
245 $aUpland rice response to potassium fertilization on a Brazilian oxisol.$h[electronic resource]
260 $c1990
520 $aEven though K is an essential nutrient, the response of upland rice to K fertilization under field conditions has not been adequately documented. This research was conducted to examine the influence of K fertilization on yield of upland rice (Oryza sativa L.). In the first three years, K was broadcast at rates of 0, 42, 84, 126 and 168 kg K ha-1. In the last two years K was banded at rates of 0, 25, 50, 75 and 100 kg K ha-1. The experiment was conducted on an Oxisol (Typic Haplustox) during five consecutive years. Potassium significantly increased grain yields and dry matter production but response varied from cultivar to cultivar and year to year. Drought and panicle neck blast played an important role in limiting upland rice yield response to K fertilization. Potassium application rates associated with maximum grain yield varied from 83 to 127 kg K ha-1 when K was broadcast and from 47 to 67 Kg K ha-1 when K was banded. Previous broadcast K, favorable weather and blast resistant cultivars probably contributed to higher yields with K banding in the fourth and fifth growing seasons.
650 $apotassium
650 $aArroz
650 $aCerrado
650 $aOryza Sativa
650 $aOxisol
650 $aPotássio
653 $aAdubação potássica
653 $aArroz de sequeiro
653 $aFertilization
653 $aSoil K level
653 $aUpland rice
700 1 $aWRIGHT, R. J.
700 1 $aBALIGAR, V. C.
700 1 $aCARVALHO, J. R. P. de
773 $tFertilizer Research, Dordrecht$gv. 21, p. 141-147, 1990.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | PEREIRA, B. L. C.; OLIVEIRA, A. C.; CARNEIRO, A. de C. O.; CARDOSO JÚNIOR, J. F.; CASTRO, V. R. de. Avaliação técnica, econômica, financeira e ambiental de um forno container para produção de 4000 MDC. In: CONGRESSO BRASILEIRO SOBRE FLORESTAS ENERGÉTICAS, 1., 2009, Belo Horizonte. Anais. Colombo: Embrapa Florestas, 2009. 1 CD-ROM. (Embrapa Florestas. Documentos, 178). Seção: Sustentabilidade Ambiental, Social e Econômica.| Biblioteca(s): Embrapa Florestas. |
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| 2. | | OLIVEIRA, A. C.; PEREIRA, B. L. C.; CARNEIRO, A. de C. O.; CARDOSO JÚNIOR, J. F.; TORRES, C. M. M. E.; REIS, B. E. Avaliação de diferentes marcas de carvão vegetal comercializados na cidade de Viçosa, MG. In: CONGRESSO BRASILEIRO SOBRE FLORESTAS ENERGÉTICAS, 1., 2009, Belo Horizonte. Anais. Colombo: Embrapa Florestas, 2009. 1 CD-ROM. (Embrapa Florestas. Documentos, 178). Seção: Matéria Prima e Processos de Conversão Energética.| Biblioteca(s): Embrapa Florestas. |
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