Carlos C. V. García ,
José C. B. Dubeux Jr ,
Xavier Martini ,
Derick Conover ,
Erick R. S. Santos ,
Martin Ruiz-Moreno ,
Izabela A. G. da Silva , Daciele S. Abreu , Luana M. D. Queiroz , Flavia O. S. van Cleef , Mércia V. F. Santos & Giselle G. M. Fracetto Abstract This study evaluated the role of dung beetle species alone or associated under different species on nitrous oxide (N 2 O) emission, ammonia volatilization, and the performance of pearl millet [ Pennisetum glaucum (L.)]. There were seven treatments, including two controls (soil and soil + dung without beetles), single species of Onthophagus taurus [Shreber, 1759] (1), Digitonthophagus gazella [Fabricius, 1787] (2), or Phanaeus vindex [MacLeay, 1819] (3); and their assemblages (1 + 2 and 1 + 2 + 3). Nitrous oxide emission was estimated for 24 days, when pearl millet was planted in sequence to assess growth, nitrogen yield (NY), and dung beetle activity. Dung beetle species presented greater N 2 O flow of dung on the 6th day (80 g N 2 O-N ha −1 day −1 ) compared to soil and dung (2.6 g N 2 O-N ha −1 day −1 ). Ammonia emissions varied with the presence of dung beetles ( P < 0.05), and D. gazella had less NH 3 − N on days 1, 6, and 12 with averages of 2061, 1526, and 1048 g ha […]
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