Data/hora: 11/06/2024 09:21:30

Provedor de dados: | 196
País: | Brazil
Título: | EXTRACTION METHODS AND POTASSIUM AVAILABILITY FOR SOYBEAN IN THE PARANA STATE’S SOILS, BRAZIL
Autores: | Steiner, Fábio; Lana, Maria do Carmo; Zoz, Tiago; Frandoloso, Jucenei Fernando; Fey, Rubens.
Data: | 2015-07-01
Ano: | 2015
Palavras-chave: | Extratores; Disponibilidade de Nutrientes.
Resumo: | Evaluating the potassium (K) availability to the plants can be performed by different methods. In general, multielement methods are employed and they are used for K due to increase operational of soil testing laboratory. The efficacy of ammonium acetate, Mehlich-1, Mehlich-3 and ion exchange resin soil K extractantsin determining the K availability for soybean [Glycine max L. (Merrill)], in different Parana’s soils, were investigated in this study. Twelve soil samples, collected from the upper layer 0–0.20 m, were cultivated with soybean for 42 days in greenhouse conditions. The average amount of available soil K extracted in test soils was found, displayed in decreasing order: ammonium acetate &amp;gt; Mehlich-3 &amp;gt; Mehlich-1 = ion exchange resin. The correlation coefficients between the K extracted content by ammonium acetate, Mehlich-1, Mehlich-3 and ion exchange resin and the K accumulated amount in the plants were, respectively, 0.90, 0.77, 0.88 and 0.89. The efficacy of ammonium acetate, Mehlich-3 and ion exchange resin extractants in assessing plant-available K in soils from Parana State were similar. The Mehlich-1 was the least efficient in estimating plant-available K in Parana’s soils.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://periodicosonline.uems.br/index.php/agrineo/article/view/232

10.32404/rean.v1i2.232

Editor: | Universidade Estadual de Mato Grosso do Sul, Unidade Universitária de Cassilândia
Relação: | http://periodicosonline.uems.br/index.php/agrineo/article/view/232/224
Formato: | application/x-octet-stream

Fonte:

Revista de Agricultura Neotropical; v. 1 n. 2 (2014): Revista de Agricultura Neotropical; 83-92

REVISTA DE AGRICULTURA NEOTROPICAL; Vol. 1 No. 2 (2014): REVISTA DE AGRICULTURA NEOTROPICAL; 83-92

2358-6303

10.32404/rean.v1i2

Fonte: | Copyright (c) 2015 REVISTA DE AGRICULTURA NEOTROPICAL