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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.; BALIGAR, V. C.; WRIGHT, R. J.; CARVALHO, J. R. P. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; V. C. BALIGAR; R. J. WRIGHT; JOSE RUY PORTO DE CARVALHO, CNPAF. |
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Título: |
Lowland rice response to potassium fertilization and its effect on N and P uptake. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Fertilizer Research, Dordrecht, v. 21, p. 157-162, Jan. 1990. |
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DOI: |
10.1007/BF01087425 |
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Idioma: |
Inglês |
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Conteúdo: |
Not much is known about the response of lowland rice to K fertilization under Brazilian conditions. A field experiments was conducted during four consecutive years to determine the response of three lowland rice (Oryza sativa L.) cultivars to K fertilization on a Low Humic Gley soil. In the first two years, K was broadcast at rates of 0, 42, 84, 126, and 168 kg K ha-1. In the last two years K rates were reduced to 0, 25, 50, 75, and 100 kg K ha-1 and applied in a band. Potassium significantly (P < 0,01) increased grain yields but the response varied from cultivar to cultivar and year to year. Yield responses to K fertilization were superimposed on a general trend of increasing grain yields across the four growing seasons. Mean grain yields increased 14.3% with broadcast application of K in the first two years and 10.4% with banded application of K in the last two years when compared to the control treatments. Extractable soil K increased with K application rate and decreased with soil depth. Potassium was rapidly removed from the soil and yearly broadcast or banded application of K can be expected to result in a significant increase in grain yield of lowland rice in these soils. |
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Palavras-Chave: |
Adubação potássica; Arroz de várzea; Concentração de potássio; K x cultivar interaction; Lowland rice; Potassium fertilization. |
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Thesagro: |
Arroz; Cerrado; Oryza Sativa; Potássio. |
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Thesaurus Nal: |
Grain yield; Potassium; Potassium fertilizers; rice. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02165naa a2200337 a 4500
001 1197876
005 2020-06-24
008 1990 bl uuuu u00u1 u #d
024 7 $a10.1007/BF01087425$2DOI
100 1 $aFAGERIA, N. K.
245 $aLowland rice response to potassium fertilization and its effect on N and P uptake.$h[electronic resource]
260 $c1990
520 $aNot much is known about the response of lowland rice to K fertilization under Brazilian conditions. A field experiments was conducted during four consecutive years to determine the response of three lowland rice (Oryza sativa L.) cultivars to K fertilization on a Low Humic Gley soil. In the first two years, K was broadcast at rates of 0, 42, 84, 126, and 168 kg K ha-1. In the last two years K rates were reduced to 0, 25, 50, 75, and 100 kg K ha-1 and applied in a band. Potassium significantly (P < 0,01) increased grain yields but the response varied from cultivar to cultivar and year to year. Yield responses to K fertilization were superimposed on a general trend of increasing grain yields across the four growing seasons. Mean grain yields increased 14.3% with broadcast application of K in the first two years and 10.4% with banded application of K in the last two years when compared to the control treatments. Extractable soil K increased with K application rate and decreased with soil depth. Potassium was rapidly removed from the soil and yearly broadcast or banded application of K can be expected to result in a significant increase in grain yield of lowland rice in these soils.
650 $aGrain yield
650 $aPotassium
650 $aPotassium fertilizers
650 $arice
650 $aArroz
650 $aCerrado
650 $aOryza Sativa
650 $aPotássio
653 $aAdubação potássica
653 $aArroz de várzea
653 $aConcentração de potássio
653 $aK x cultivar interaction
653 $aLowland rice
653 $aPotassium fertilization
700 1 $aBALIGAR, V. C.
700 1 $aWRIGHT, R. J.
700 1 $aCARVALHO, J. R. P.
773 $tFertilizer Research, Dordrecht$gv. 21, p. 157-162, Jan. 1990.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | MARCONDES, C. R.; MARQUES, L. C.; VOZZI, P. A.; AGUIAR, J. F.; CAMARGO JUNIOR, R. N. C.; DUARTE, S. R. R.; MARQUES, J. R. F. Pedigree analysis applied to an endangered buffalo population: possible management strategy. Livestock Research for Rural Development, v. 26, n. 2, feb. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
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