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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Doses and application seasons of potassium in the soybean-corn succession in soil with improved fertility in the Southwest of Goiás.
Autores:  XAVIER, W. D.
CARNEIRO, L. F.
GUIMARÃES, C. M.
SILVA, J. V. de S.
PINTO, F. A.
RIBEIRO, D. O.
SOUSA, V. S.
RESENDE, A. V. de
Data:  2019-12-10
Ano:  2019
Palavras-chave:  Ciclagem de nutrientes
Grão
Rendimento
Plantio Direto
Glycine Max
Soja
Resumo:  Soils with improved fertility indicate opportunities for more rational use of fertilizers. The objective of this study was to evaluate the management of potassium fertilization in the succession of soybean-corn in soil with improved fertility, in the southwestern region of the state, Goiás. The experiment was set in 5×3 factorial scheme, arranged in randomized blocks with four repetitions. The treatments consisted of the combination of potassium doses (0, 40, 80, 120 and 160 kg ha-1 of K2O) and seasons of application (100% of the dose in pre-planting, 100% of the dose in coverage and in installments with 50% of the dose in pre-planting + 50% in coverage). The best performance of soybean, considering grain yield, was obtained with the parceled application of 80 kg ha-1 of K2O, with production of 3.6 Mg ha-1. The highest corn production was obtained with the anticipated application of 160 kg ha-1 of K2O in soybean. In the management of potassium fertilization in improved fertility soil in the soybean-corn succession, the parceled application of 120 kg ha-1 of K2O kept the available K reserve in the soil constant when compared to its initial content.

bitstream/item/206569/1/Doses-application.pdf
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  29041

http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116452
Editor:  Journal of Agricultural Science, v. 11, n. 4, p. 307-317, 2019.
Relação:  Embrapa Milho e Sorgo - Artigo em periódico indexado (ALICE)
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