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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
22/03/2018 |
Data da última atualização: |
09/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SILVEIRA, T. C.; PREGORARO, R. F.; KONDO, M. K.; PORTUGAL, A. F.; RESENDE, A. V. |
Afiliação: |
Thiago C. Silveira; Rodinei F. Pegoraro; Marcos K. Kondo; ARLEY FIGUEIREDO PORTUGAL, CNPMS; ALVARO VILELA DE RESENDE, CNPMS. |
Título: |
Sorghum yield after liming and combinations of phosphorus sources. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 22, n. 4, p. 243-248, 2018. |
DOI: |
10.1590/1807-1929/agriambi.v22n4p243-248 |
Idioma: |
Inglês |
Conteúdo: |
Phosphate fertilization has increased sorghum yield, but few studies are available on sorghum production and efficient fertilizer management related to liming and phosphorus (P) sources. This work evaluates production, dry matter partitioning and agronomic efficiency (AEI) in successive sorghum cycles after application of limestone and combinations of phosphorus sources. Two cycles were conducted in sequence in the same experimental field, in a 2 x 6 factorial scheme, corresponding to soil with or without liming and six combinations of P2O5 sources: control (0 kg ha-1 P2O5), 100% Itafós natural phosphate (NP), 75% NP + 25% single superphosphate (SS), 50% NP + 50% SS, 25% NP + 75% SS and 100% SS. Pots with capacity for 8 dm3 were used in a randomized block design with four replicates. The first cycle, conducted in the summer/autumn season, reached the highest dry matter production and P accumulation in treatments with higher SS proportions, leading to higher AEI. Subsequently, in the second cycle, conducted considering only the residual phosphate fertilization of the first cycle, highest dry matter production and AEI were obtained in the treatment with 100% or higher proportions of natural phosphate in the presence of liming, most likely due to the gradual release of P. |
Palavras-Chave: |
Adubação fosfatada; Eficiência agronomica. |
Thesagro: |
Adubação; Fósforo; Matéria seca; Sorgo. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/174413/1/Sorghum-yield.pdf
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Marc: |
LEADER 02074naa a2200253 a 4500 001 2089611 005 2018-05-09 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1590/1807-1929/agriambi.v22n4p243-248$2DOI 100 1 $aSILVEIRA, T. C. 245 $aSorghum yield after liming and combinations of phosphorus sources.$h[electronic resource] 260 $c2018 520 $aPhosphate fertilization has increased sorghum yield, but few studies are available on sorghum production and efficient fertilizer management related to liming and phosphorus (P) sources. This work evaluates production, dry matter partitioning and agronomic efficiency (AEI) in successive sorghum cycles after application of limestone and combinations of phosphorus sources. Two cycles were conducted in sequence in the same experimental field, in a 2 x 6 factorial scheme, corresponding to soil with or without liming and six combinations of P2O5 sources: control (0 kg ha-1 P2O5), 100% Itafós natural phosphate (NP), 75% NP + 25% single superphosphate (SS), 50% NP + 50% SS, 25% NP + 75% SS and 100% SS. Pots with capacity for 8 dm3 were used in a randomized block design with four replicates. The first cycle, conducted in the summer/autumn season, reached the highest dry matter production and P accumulation in treatments with higher SS proportions, leading to higher AEI. Subsequently, in the second cycle, conducted considering only the residual phosphate fertilization of the first cycle, highest dry matter production and AEI were obtained in the treatment with 100% or higher proportions of natural phosphate in the presence of liming, most likely due to the gradual release of P. 650 $aAdubação 650 $aFósforo 650 $aMatéria seca 650 $aSorgo 653 $aAdubação fosfatada 653 $aEficiência agronomica 700 1 $aPREGORARO, R. F. 700 1 $aKONDO, M. K. 700 1 $aPORTUGAL, A. F. 700 1 $aRESENDE, A. V. 773 $tRevista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande$gv. 22, n. 4, p. 243-248, 2018.
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Embrapa Milho e Sorgo (CNPMS) |
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1. | | SILVEIRA, T. C.; PREGORARO, R. F.; KONDO, M. K.; PORTUGAL, A. F.; RESENDE, A. V. Sorghum yield after liming and combinations of phosphorus sources. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 22, n. 4, p. 243-248, 2018.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Milho e Sorgo. |
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