Data/hora: 03/06/2024 10:13:47

Provedor de dados: | 22
País: | Brazil

Título:

Available phosphorus in acid and amended soils with application of soluble, reactive and natural phosphate

Fósforo disponível em solos ácidos e corrigidos com aplicação de fosfatos solúvel, reativo e natural

Autores: | Luchini, Iza; Tiritan, Carlos Sérgio; Foloni, José Salvador Simoneti; Santos, Diego Henriques.
Data: | 2012-04-09
Ano: | 2012
Palavras-chave: | Acidez; Fixação de fósforo; Fosfato acidulado.
Resumo: | The work had for objective to evaluate the behavior of the phosphorus sources Arad phosphate, Alvorada phosphorite and Triple Superphosphate in two soils, a sandy and a clay 70% basis saturation in the natural acidity condition. The experimental outlining was totally randomized in a factorial scheme, 2 x 2 x 3 x 4, being two soils, three phosphate fertilizer sources and four doses (0, 100, 200 and 400 kg ha-1), with four repetitions. The results were submitted to the variance analysis and adopted the regression, being adjusted the equations and using as a criterion to the statistical pattern choice the significant F tests to 1 and 5%, and magnitude of the determination coefficients. The phosphate fertilizers elevated the tenors of calcium and phosphorus in the sandy and in the sand-clay soils, both in presence and absence of liming. The Arad applied in high doses in the acid soils altered the pH of the sandy and the clay soils. The smallest phosphorus tenors in the soil were observed in the treatments that received an Alvorada phosphorite apllication. The largest tenors of the Triple Superphosphate and Arad showed intermediate tenors of available phosphorus.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/4446

10.1818/sap.v11i1.4446

Editor: | Scientia Agraria Paranaensis
Relação: | http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/4446/4965
Formato: | application/pdf

Fonte:

Scientia Agraria Paranaensis; v. 11, n. 1 (2012); p. 82-94

1983-1471