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| Chiaradia,Jonas Jacob; Chiba,Marcio Koiti; Andrade,Cristiano Alberto de; Carmo,Janaína Braga do; Oliveira,Claudeir de; Lavorenti,Arquimedes. |
| Organic residue application into soil alter the emission of gases to atmosphere and CO2, CH4, N2O may contribute to increase the greenhouse effect. This experiment was carried out in a restoration area on a dystrophic Ultisol (PVAd) to quantify greenhouse gas (GHG) emissions from soil under castor bean cultivation, treated with sewage sludge (SS) or mineral fertilizer. The following treatments were tested: control without N; FertMin = mineral fertilizer; SS5 = 5 t ha-1 SS (37.5 kg ha-1 N); SS10 = 10 t ha-1 SS (75 kg ha-1 N); and SS20 = 20 t ha-1 SS (150 kg ha-1 N). The amount of sludge was based on the recommended rate of N for castor bean (75 kg ha-1), the N level of SS and the mineralization fraction of N from SS. Soil gas emission was measured for 21... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Residue; Nitrogen; Carbon dioxide; Nitrous oxide; Methane. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000600035 |
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