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Extractors for iron quantification in soil cultivated with soybean - DOI: 10.4025/actasciagron.v26i3.1833
Provedor de dados: 1
Autores: Silva, Maria Anita Gonçalves da; Muniz, Antonio Saraiva; Costa, Antonio Carlos Saraiva da; Cegana, Antonio Cristiano Vieira.
The methodologies of micronutrientes analyses have been studied seeking a better expression of its texts in the soils and a larger adaptation to the analyses of routine of the laboratories. The efficiency of the extractors in the determination of the iron was evaluated through the use of acid extractors (Mehlich 1), in the relationship of 1:5 and 1:10, of an agent complexante (DTPA pH 7,3) and of combinated (Mehlich 3), in the relationship 1:10; the determination methodology consisted of agitation with immediate filtrate, filtrate after 16 hours of decantated and pipetate after decantação of 16 hours. The analyses included 18 representative soils of Paraná, collected to a depth of 0-20cm. The results they were appraised through the relationship among the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4    Ciências Agrárias extratores de ferro; Metodologias de análise; Solos paranaenses 5.00.00.00-4    Ciências Agrárias.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1833