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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
08/01/2021 |
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Data da última atualização: |
08/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SOUZA, R. M. de; SOBRAL, L. F.; OLIVEIRA JUNIOR, A. de. |
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Afiliação: |
RICHARD M. DE SOUZA; LAFAYETTE FRANCO SOBRAL, CPATC; ADILSON DE OLIVEIRA JUNIOR, CNPSO. |
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Título: |
Maize yield influenced by the residual effects of sedimentary phosphates in high-calcium soil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Brasileira de Engenharia Agrícola e Ambiental, v. 24, n. 11, p. 735-740, 2020. |
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ISSN: |
1807-1929 |
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Idioma: |
Inglês |
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Conteúdo: |
It was evaluated the residual effects of sedimentary phosphates associated with the annual application of phosphate on maize grown in Inceptisol soil with a high exchangeable calcium concentration and pH value of 6.0. The experiment was conducted based on a completely randomized block design with strip-split plots. The main plots were treated with Bayóvar rock phosphate, Itafós rock phosphate, or triple superphosphate, while the control received no additional phosphate. The phosphate sources were applied by broadcasting and incorporated in the soil two years prior to the current study at 200 kg of P2O5 ha-1, with no tillage in subsequent years. In the sub-plots, phosphate doses of 0, 60, and 120 kg of P2O5 ha-1 year-1, as triple superphosphate, were applied at the base of the sowing furrows. Leaf phosphorus (P), grain yield, and soil P by ion exchange resin were evaluated. Differences were observed between the leaf P among the plots treated with phosphate sources and the control plot, which declined from 2013 to 2015. In 2013 and 2014, rock phosphate residuals influenced the grain yield when there was no annual application of phosphate. In 2015, grain yields in rock phosphate treatments without annual phosphate application were not superior to those in the control treatment and did not differ significantly from the plots receiving triple superphosphate. Furthermore, it was found that the soil P content extracted by ion exchange resin was higher in the Itafós treatment; however, for this source, the correlation between soil P and grain yield was relatively weak. MenosIt was evaluated the residual effects of sedimentary phosphates associated with the annual application of phosphate on maize grown in Inceptisol soil with a high exchangeable calcium concentration and pH value of 6.0. The experiment was conducted based on a completely randomized block design with strip-split plots. The main plots were treated with Bayóvar rock phosphate, Itafós rock phosphate, or triple superphosphate, while the control received no additional phosphate. The phosphate sources were applied by broadcasting and incorporated in the soil two years prior to the current study at 200 kg of P2O5 ha-1, with no tillage in subsequent years. In the sub-plots, phosphate doses of 0, 60, and 120 kg of P2O5 ha-1 year-1, as triple superphosphate, were applied at the base of the sowing furrows. Leaf phosphorus (P), grain yield, and soil P by ion exchange resin were evaluated. Differences were observed between the leaf P among the plots treated with phosphate sources and the control plot, which declined from 2013 to 2015. In 2013 and 2014, rock phosphate residuals influenced the grain yield when there was no annual application of phosphate. In 2015, grain yields in rock phosphate treatments without annual phosphate application were not superior to those in the control treatment and did not differ significantly from the plots receiving triple superphosphate. Furthermore, it was found that the soil P content extracted by ion exchange resin was higher in the Itafós treatment; howev... Mostrar Tudo |
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Thesagro: |
Fertilizante; Fertilizante Fosfatado; Fosfato; Milho. |
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Thesaurus NAL: |
Corn; Fertilizers; Phosphates. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220002/1/Artigo-Agriambi.pdf
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Marc: |
LEADER 02305naa a2200241 a 4500
001 2129089
005 2021-01-08
008 2020 bl uuuu u00u1 u #d
022 $a1807-1929
100 1 $aSOUZA, R. M. de
245 $aMaize yield influenced by the residual effects of sedimentary phosphates in high-calcium soil.$h[electronic resource]
260 $c2020
520 $aIt was evaluated the residual effects of sedimentary phosphates associated with the annual application of phosphate on maize grown in Inceptisol soil with a high exchangeable calcium concentration and pH value of 6.0. The experiment was conducted based on a completely randomized block design with strip-split plots. The main plots were treated with Bayóvar rock phosphate, Itafós rock phosphate, or triple superphosphate, while the control received no additional phosphate. The phosphate sources were applied by broadcasting and incorporated in the soil two years prior to the current study at 200 kg of P2O5 ha-1, with no tillage in subsequent years. In the sub-plots, phosphate doses of 0, 60, and 120 kg of P2O5 ha-1 year-1, as triple superphosphate, were applied at the base of the sowing furrows. Leaf phosphorus (P), grain yield, and soil P by ion exchange resin were evaluated. Differences were observed between the leaf P among the plots treated with phosphate sources and the control plot, which declined from 2013 to 2015. In 2013 and 2014, rock phosphate residuals influenced the grain yield when there was no annual application of phosphate. In 2015, grain yields in rock phosphate treatments without annual phosphate application were not superior to those in the control treatment and did not differ significantly from the plots receiving triple superphosphate. Furthermore, it was found that the soil P content extracted by ion exchange resin was higher in the Itafós treatment; however, for this source, the correlation between soil P and grain yield was relatively weak.
650 $aCorn
650 $aFertilizers
650 $aPhosphates
650 $aFertilizante
650 $aFertilizante Fosfatado
650 $aFosfato
650 $aMilho
700 1 $aSOBRAL, L. F.
700 1 $aOLIVEIRA JUNIOR, A. de
773 $tRevista Brasileira de Engenharia Agrícola e Ambiental$gv. 24, n. 11, p. 735-740, 2020.
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Embrapa Tabuleiros Costeiros (CPATC) |
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