Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/203846
Unidade da Embrapa/Coleção:: Embrapa Arroz e Feijão - Artigo em periódico indexado (ALICE)
Data do documento: 20-Abr-2005
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: NASCENTE, A. S.
KROMOCARDI, R.
Informaçães Adicionais: ADRIANO STEPHAN NASCENTE, CNPAF; RUBY KROMOCARDI, MINISTRY OF AGRICULTURE, Paramaribo, Suriname.
Título: Genotype selection and addition of fertilizer increases grain yield in upland rice in Suriname.
Fonte/Imprenta: Acta Amazonica, Manaus, v. 47, n. 3, p. 185-194, 2017.
Idioma: en
Palavras-chave: Suriname
Conteúdo: The upland rice farmers in Suriname use local varieties and low level technologies in the field. As a result, the upland rice grain yield is low, at about 1 000 kg ha-1. Our objective was to evaluate the use of upland rice cultivars from Suriname and Brazil, and the effect of nitrogen, N, phosphorus, P, and potassium, K, fertilizers on cultivation variables. We undertook four field trials in the Victoria Area, in the Brokopondo District, using a randomized block design each with four replications. The most productive rice varieties were BRS Esmeralda (grain yield 2 903 kg ha-1) and BRS Sertaneja (2 802 kg ha-1). The highest grain yield of 2 620 kg ha-1 was achieved with a top dressing application of 76.41 kg N ha-1 20 days after sowing. For P, the highest grain yield of 3 085 kg ha-1 was achieved with application of 98.06 kg ha-1 P2O5 applied at sowing. An application rate of 31.45 kg ha-1 of K2O at sowing achieved the highest grain yield of 2 952 kg ha-1. Together, these application rates of N, P and K resulted in rice grain yield of about 3 000 kg ha-1, which is three times greater than the national average for upland rice. We demonstrate that the use of improved rice varieties matched to the local conditions, and application of appropriate fertilizers, are management practices that can result in significant increases in rice grain yield in Suriname.
Thesagro: Arroz
Oryza sativa
Melhoramento genético vegetal
Variedade
Nitrogênio
Fósforo
Potássio
Fertilizante
Ano de Publicação: 2017
Aparece nas coleções:Artigo em periódico indexado (CNPAF)

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