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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
25/02/2021 |
Data da última atualização: |
25/02/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, L. E. Z.; SOUSA, D. M. G. de; FIGUEIREDO, C. C.; NUNES, R. de S.; MALAQUIAS, J. V. |
Afiliação: |
DJALMA MARTINHAO GOMES DE SOUSA, CPAC; RAFAEL DE SOUZA NUNES, CPAC; JUACI VITORIA MALAQUIAS, CPAC. |
Título: |
Long-term phosphate fertilization strategies evaluation in a Brazilian Oxisol. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Agronomy Journal, v. 112, n. 5, p. 4303-4320, 2020. |
Páginas: |
p. 4303-4320 |
Idioma: |
Inglês |
Conteúdo: |
There are concerns related to the application of phosphate fertilizers to weathered soils that present low soil test phosphorus (STP) due to P adsorption in iron oxyhydroxides. Furthermore, long-term trials are needed to evaluate crop response to corrective P fertilization and its interaction with different maintenance P fertilization strategies in these soils. An experiment involving the combination of three initial corrective P fertilization schemes (control without P correction or with the application of 105 kg P ha−1 as triple superphosphate [TSP] or reactive rock phosphate [RRP]), four Pmaintenance strategies (a controlwithout the application of maintenance P, or 35 kg P ha−1 yr−1 as TSP, RRP, or a mix of both) and two application methods was cultivated during 16 yr at the Embrapa Cerrados experimental station in Planaltina, DF, Brazil. Corrective P fertilization promoted an early crop yield response. In contrast, high crop yields were only obtained in control treatments with no corrective P fertilization after soil P stocks were increased to a minimum level. With increasing P stocks, broadcast application resulted in slightly better yields. The required residual P stocks in soil to obtain high yields were estimated as equivalent to 113.6 and 205.2 kg P ha−1 for TSP and RRP, respectively. These values allow for STP contents to increase to critical levels, whose value for TSP of 4.1 mg kg−1 Mehlich-1 P is below that recommended for the region, possibly due to the contribution of organic P forms in the long-term no-tillage system MenosThere are concerns related to the application of phosphate fertilizers to weathered soils that present low soil test phosphorus (STP) due to P adsorption in iron oxyhydroxides. Furthermore, long-term trials are needed to evaluate crop response to corrective P fertilization and its interaction with different maintenance P fertilization strategies in these soils. An experiment involving the combination of three initial corrective P fertilization schemes (control without P correction or with the application of 105 kg P ha−1 as triple superphosphate [TSP] or reactive rock phosphate [RRP]), four Pmaintenance strategies (a controlwithout the application of maintenance P, or 35 kg P ha−1 yr−1 as TSP, RRP, or a mix of both) and two application methods was cultivated during 16 yr at the Embrapa Cerrados experimental station in Planaltina, DF, Brazil. Corrective P fertilization promoted an early crop yield response. In contrast, high crop yields were only obtained in control treatments with no corrective P fertilization after soil P stocks were increased to a minimum level. With increasing P stocks, broadcast application resulted in slightly better yields. The required residual P stocks in soil to obtain high yields were estimated as equivalent to 113.6 and 205.2 kg P ha−1 for TSP and RRP, respectively. These values allow for STP contents to increase to critical levels, whose value for TSP of 4.1 mg kg−1 Mehlich-1 P is below that recommended for the regio... Mostrar Tudo |
Thesagro: |
Fertilizante Fosfatado; Rendimento; Solo; Tratamento do Solo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02254naa a2200229 a 4500 001 2130287 005 2021-02-25 008 2020 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, L. E. Z. 245 $aLong-term phosphate fertilization strategies evaluation in a Brazilian Oxisol.$h[electronic resource] 260 $c2020 300 $ap. 4303-4320 520 $aThere are concerns related to the application of phosphate fertilizers to weathered soils that present low soil test phosphorus (STP) due to P adsorption in iron oxyhydroxides. Furthermore, long-term trials are needed to evaluate crop response to corrective P fertilization and its interaction with different maintenance P fertilization strategies in these soils. An experiment involving the combination of three initial corrective P fertilization schemes (control without P correction or with the application of 105 kg P ha−1 as triple superphosphate [TSP] or reactive rock phosphate [RRP]), four Pmaintenance strategies (a controlwithout the application of maintenance P, or 35 kg P ha−1 yr−1 as TSP, RRP, or a mix of both) and two application methods was cultivated during 16 yr at the Embrapa Cerrados experimental station in Planaltina, DF, Brazil. Corrective P fertilization promoted an early crop yield response. In contrast, high crop yields were only obtained in control treatments with no corrective P fertilization after soil P stocks were increased to a minimum level. With increasing P stocks, broadcast application resulted in slightly better yields. The required residual P stocks in soil to obtain high yields were estimated as equivalent to 113.6 and 205.2 kg P ha−1 for TSP and RRP, respectively. These values allow for STP contents to increase to critical levels, whose value for TSP of 4.1 mg kg−1 Mehlich-1 P is below that recommended for the region, possibly due to the contribution of organic P forms in the long-term no-tillage system 650 $aFertilizante Fosfatado 650 $aRendimento 650 $aSolo 650 $aTratamento do Solo 700 1 $aSOUSA, D. M. G. de 700 1 $aFIGUEIREDO, C. C. 700 1 $aNUNES, R. de S. 700 1 $aMALAQUIAS, J. V. 773 $tAgronomy Journal$gv. 112, n. 5, p. 4303-4320, 2020.
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Registros recuperados : 39 | |
5. | | NUNES, R. de S.; SOUSA, D. M. G. de; GOEDERT, W. J.; SOARES, J. R. R. Impacto dos sistemas plantio direto e preparo convencional nas interações entre matéria orgânica e fertilidade do solo. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Cerrados. |
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8. | | NUNES, R. de S.; SOUSA, D. M. G. de; GOEDERT, W. J.; SOARES, J. R. R. Fracionamento da matéria orgânica de um solo sob sistema de preparo convencional e plantio direto. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Cerrados. |
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10. | | LOBO JUNIOR, M.; NUNES, R. de S.; ALTMANN, N.; SILVEIRA, P. M. da. Efeitos na fertilidade física do solo. In: ALTMANN, N.; LOBO JUNIOR, M.; NUNES, R. de S.; TORMEN, N. R.; SARMENTO, P. H. L. (ed.). Vida no solo. Brasília, DF: GTEC Brasil Central, 2023. Capítulo 5, p. 88-99. il.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Arroz e Feijão. |
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12. | | SOUSA, D. M. G. de; NUNES, R. de S.; MENDES, I. de C. Eficiência do uso de fósforo em sistemas agrícolas. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., 2016, Goiânia. Rumo aos novos desafios: [anais]. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2016. FertBio 2016.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Cerrados. |
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Registros recuperados : 39 | |
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