Consulta: creatorFacets:"Silva, Maria Anita Gonçalves da"
Registros recuperados: 2
Data/hora: 13/06/2024 04:38:06

Extractors for zinc and copper quantification in soils cultivated with soybean - DOI: 10.4025/actasciagron.v26i3.1832
Provedor de dados: 1
Autores: Silva, Maria Anita Gonçalves da; Muniz, Antonio Saraiva; Mata, José de Deus Viana da; Cegana, Antonio Cristiano Vieira.
The growint demand of micronutrients analysis, was avaliated the efficiency of acid extractor was evaluated (Mehlich 1), complexante (DTPA) and of the acid combination and complexante (Mehlich 3), for the determination of Zn and Cu of different representative soils of Paraná. The extractors Mehlich 1 was used in the relationship 1:5 and 1:10; Mehlich 3 in the relationship 1:10 and DTPA in the relationship 1:2. The analytic methodologies included the immediate filtrate or the filtrate after decantate of 16 hours; it was still evaluated the filtrate need, comparatively to solution pipetate. The results were appraised through the correlation among the concentration of the nutrients in the soil and in the soy plant. In the evaluation of all the soils, larger...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4    Ciências Agrárias extratores; Micronutrientes solos paranaenses 5.00.00.00-4    Ciências Agrárias.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1832

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