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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Pesca e Aquicultura. |
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Data corrente: |
25/05/2018 |
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Data da última atualização: |
25/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REIS, A. F. de B.; NASCENTE, A. S.; ALMEIDA, R. E. M. de; CHAGAS JÚNIOR, A. F. |
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Afiliação: |
ANDRÉ FROES DE BORJA REIS, ESALQ; ADRIANO STEPHAN NASCENTE, CNPAF; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; ALOÍSIO FREITAS CHAGAS JUNIOR, UNIVERSIDADE FEDERAL DO TOCANTINS, Gurupi-TO. |
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Título: |
Growth and nutrient contents in lowland rice due to phosphorus and potassium fertilization. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Tropical, v. 48, n. 2, p. 98-108, apr./jun. 2018. |
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ISSN: |
1983-4063 |
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DOI: |
10.1590/1983-40632018v4850666 |
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Idioma: |
Português |
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Conteúdo: |
In order to reach an optimum and sustainable production, growers must know the fertilizing potassium (K) and phosphorous (P) application rates. The present study aimed to determine the rice development in response to combined rates of P and K, on Plinthaquults (380-400 g kg-1 of clay), under high and low fertility conditions, in the tropical lowland plain of the Araguaia river, Brazil. Three field experiments were performed, each one consisting of a completely randomized factorial block design, with three replications. Treatments included a combination of six K2O rates (0 kg ha-1, 30 kg ha-1, 60 kg ha-1, 90 kg ha-1, 120 kg ha-1 and 150 kg ha-1) with six P2O5 rates (0 kg ha-1, 30 kg ha-1, 60 kg ha-1, 90 kg ha-1, 120 kg ha-1 and 150 kg ha-1). No interaction effect between P and K rates was observed for the evaluated variables in any fertility level/year. Phosphorous application under low fertility conditions, as well as K under high fertility conditions, affect overall crop nutrition, tillering capacity, yield components and grain yield of lowland rice, though no effects were observed due to the P application in high fertility soils and K in low fertility soils. Under high fertility conditions, the grain yield increment rate due to the K application was 4.04 kg ha-1, whereas in the low fertility areas, such as recently cleared fields, a maximum yield of 7,161 kg ha-1 was achieved by applying 140 kg ha-1 of P. |
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Thesagro: |
Arroz; Arroz Irrigado; Fósforo; Oryza Sativa; Potássio; Solo Tropical. |
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Thesaurus Nal: |
Phosphorus; Potassium; Rice; Tropical soils. |
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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/177690/1/CNPAF-2018-pat.pdf
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Marc: |
LEADER 02296naa a2200301 a 4500
001 2091964
005 2018-05-25
008 2018 bl uuuu u00u1 u #d
022 $a1983-4063
024 7 $a10.1590/1983-40632018v4850666$2DOI
100 1 $aREIS, A. F. de B.
245 $aGrowth and nutrient contents in lowland rice due to phosphorus and potassium fertilization.$h[electronic resource]
260 $c2018
520 $aIn order to reach an optimum and sustainable production, growers must know the fertilizing potassium (K) and phosphorous (P) application rates. The present study aimed to determine the rice development in response to combined rates of P and K, on Plinthaquults (380-400 g kg-1 of clay), under high and low fertility conditions, in the tropical lowland plain of the Araguaia river, Brazil. Three field experiments were performed, each one consisting of a completely randomized factorial block design, with three replications. Treatments included a combination of six K2O rates (0 kg ha-1, 30 kg ha-1, 60 kg ha-1, 90 kg ha-1, 120 kg ha-1 and 150 kg ha-1) with six P2O5 rates (0 kg ha-1, 30 kg ha-1, 60 kg ha-1, 90 kg ha-1, 120 kg ha-1 and 150 kg ha-1). No interaction effect between P and K rates was observed for the evaluated variables in any fertility level/year. Phosphorous application under low fertility conditions, as well as K under high fertility conditions, affect overall crop nutrition, tillering capacity, yield components and grain yield of lowland rice, though no effects were observed due to the P application in high fertility soils and K in low fertility soils. Under high fertility conditions, the grain yield increment rate due to the K application was 4.04 kg ha-1, whereas in the low fertility areas, such as recently cleared fields, a maximum yield of 7,161 kg ha-1 was achieved by applying 140 kg ha-1 of P.
650 $aPhosphorus
650 $aPotassium
650 $aRice
650 $aTropical soils
650 $aArroz
650 $aArroz Irrigado
650 $aFósforo
650 $aOryza Sativa
650 $aPotássio
650 $aSolo Tropical
700 1 $aNASCENTE, A. S.
700 1 $aALMEIDA, R. E. M. de
700 1 $aCHAGAS JÚNIOR, A. F.
773 $tPesquisa Agropecuária Tropical$gv. 48, n. 2, p. 98-108, apr./jun. 2018.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
06/03/2002 |
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Data da última atualização: |
06/03/2002 |
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Autoria: |
BURLE, M. L.; CORDEIRO, C. M. T.; FONSECA, J. R.; ALVES, R. de B. das N. |
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Título: |
Characterization of germplasm according to environmental conditions of origin using GIS-examples applied to two brazilian germplasm collections. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
In: SIMPOSIO DE RECURSOS GENETICOS PARA A AMERICA LATINA E CARIBE-SIRGEALC, 3., 2001, Londrina. Anais... Londrina: IAPAR, 2001. p.234-236 |
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Idioma: |
Português |
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Palavras-Chave: |
Brasil; Caracterizacao; Characterization; Colecao; Collections; GIS. |
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Thesagro: |
Germoplasma. |
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Thesaurus NAL: |
Brazil; germplasm. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00813nam a2200241 a 4500
001 1180327
005 2002-03-06
008 2001 bl uuuu u01u1 u #d
100 1 $aBURLE, M. L.
245 $aCharacterization of germplasm according to environmental conditions of origin using GIS-examples applied to two brazilian germplasm collections.
260 $aIn: SIMPOSIO DE RECURSOS GENETICOS PARA A AMERICA LATINA E CARIBE-SIRGEALC, 3., 2001, Londrina. Anais... Londrina: IAPAR, 2001. p.234-236$c2001
650 $aBrazil
650 $agermplasm
650 $aGermoplasma
653 $aBrasil
653 $aCaracterizacao
653 $aCharacterization
653 $aColecao
653 $aCollections
653 $aGIS
700 1 $aCORDEIRO, C. M. T.
700 1 $aFONSECA, J. R.
700 1 $aALVES, R. de B. das N.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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