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Uso de cinzas como zeólitas na redução de perdas de nitrogênio por volatilização / Fly ash as zeolites for reducing nitrogen losses by volatilization

Antonio Costa do Nascimento, Carlos; de Abreu Faria, Letícia; Cesar Vitti, Godofredo; Lew Kenzo Ono, Erik; Zavaschi, Eduardo.
Semina Ci. agr.; 33(6): 3023-3032, 2012.
Artigo em Português | VETINDEXEXPRESS | ID: vti-470314
The structural and chemical characteristics of fly ash from coal-fired mineral and fly ash zeolitized are similar to those of zeolites. Urea was added with these materials in the proportions of urea fly ashes of 10010, 10020, 10050, 100100, with a control containing just urea. These treatments were applied in soil surface and the experimental design was a randomized block with clay and sandy soil. Nitrogen losses by ammonia volatilization and the chemical characteristics of soil fertility were evaluated. In sandy soil there was reduction of ammonia volatilization for the proportions of 10010 and 10020, while fly ash zeolitized and fly ash had no difference.
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