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| Steiner, Fábio; Lana, Maria do Carmo; Zoz, Tiago; Frandoloso, Jucenei Fernando; Fey, Rubens. |
| 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 > Mehlich-3 > Mehlich-1 = ion exchange resin.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extratores; Disponibilidade de Nutrientes. |
| Ano: 2015 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/232 |
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