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| Alves,Ana Carolina; Oliveira,Patrícia Perondi Anchão; Herling,Valdo Rodrigues; Trivelin,Paulo Cesar Ocheuze; Luz,Pedro Henrique de Cerqueira; Alves,Teresa Cristina; Rochetti,Ramon Cellin; Barioni Júnior,Waldomiro. |
| Gaseous N losses from soil are considerable, resulting mostly from ammonia volatilization linked to agricultural activities such as pasture fertilization. The use of simple and accessible measurement methods of such losses is fundamental in the evaluation of the N cycle in agricultural systems. The purpose of this study was to evaluate quantification methods of NH3 volatilization from fertilized surface soil with urea, with minimal influence on the volatilization processes. The greenhouse experiment was arranged in a completely randomized design with 13 treatments and five replications, with the following treatments: (1) Polyurethane foam (density 20 kg m-3) with phosphoric acid solution absorber (foam absorber), installed 1, 5, 10 and 20 cm above the soil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilizer-N; Ammonia absorber; 15N; NH3-N loss. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000100012 |
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