Modeling nitrous oxide emissions in grass and grass-legume pastures in the western Brazilian Amazon.
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Mineral nitrogen (N) dynamics in soil and the exchange of N gaseous in the interface soil-atmosphere are intimately associated with animal manure in pastures. According to soil inorganic-N pools and the site studied, forest or pasture, and pastures age the soil inorganic-N pools of ammonium and nitrate can be similar in the forest or ammonium dominated in the pasture. Also annual average net nitrification rates at soil surface in forest can be higher than in pasture suggesting a higher potential for nitrate-N losses either through leaching or gaseous emissions from intact forests compared with established pastures (NEILL et al., 1995).
Coordenação: Roberto Giolo de Almeida.
Coordenação: Roberto Giolo de Almeida.
Palabras clave
Emissão de óxido nitroso, Esterco animal, Gramínea Forrageira, Nitrificação, Pastagem, Solo