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84. | | PRABHU, A. S.; FARIA, J. C. de; CARVALHO, J. R. P. de. Efeito da brusone sobre a materia seca, producao de graos e seus componentes, em arroz de sequeiro. Pesquisa Agropecuaria Brasileira, Brasilia, v.21, n.5, p.495-500, maio. 1986. Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Unidades Centrais. |
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89. | | SANTOS, A. B. dos; FAGERIA, N. K.; CARVALHO, J. R. P. de. Efeitos de duas diferentes tecnologias no crescimento, produção e absorção de nutrientes do arroz de sequeiro. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 17, n. 7, p. 1041-1050, jul. 1982. Biblioteca(s): Embrapa Agricultura Digital; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Unidades Centrais. |
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94. | | SILVEIRA, P. M. da; STEINMETZ, S.; GUIMARÃES, C. M.; AIDAR, H.; CARVALHO, J. R. P. de. Lâminas de água e turnos de rega na cultura do feijoeiro de inverno. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 19, n. 2, p. 219-223, fev. 1984. Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Unidades Centrais. |
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100. | | CASTRO, A. M. G. de; LIMA, S. M. V.; CARVALHO, J. R. P. de; BACARIN, E. Implantacao do SIGER na EMBRAPA - estrategia, resultados e licoes. In: SIMPOSIO DE GESTAO DA INOVACAO TECNOLOGICA, 21., 2000, Sao Paulo, SP. Gestao da inovacao tecnologica: anais. Sao Paulo: USP/PGT, 2000. p.55 Biblioteca(s): Embrapa Agricultura Digital; Embrapa Unidades Centrais. |
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Registros recuperados : 222 | |
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Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
31/10/1994 |
Data da última atualização: |
24/06/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FAGERIA, N. K.; BALIGAR, V. C.; WRIGHT, R. J.; CARVALHO, J. R. P. |
Afiliação: |
NAND KUMAR FAGERIA, CNPAF; V. C. BALIGAR; R. J. WRIGHT; JOSE RUY PORTO DE CARVALHO, CNPAF. |
Título: |
Lowland rice response to potassium fertilization and its effect on N and P uptake. |
Ano de publicação: |
1990 |
Fonte/Imprenta: |
Fertilizer Research, Dordrecht, v. 21, p. 157-162, Jan. 1990. |
DOI: |
10.1007/BF01087425 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Adubação potássica; Arroz de várzea; Concentração de potássio; K x cultivar interaction; Lowland rice; Potassium fertilization. |
Thesagro: |
Arroz; Cerrado; Oryza Sativa; Potássio. |
Thesaurus NAL: |
Grain yield; Potassium; Potassium fertilizers; rice. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal X Pesquisa, Tecnologia e Engenharia |
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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