Evolución de las pérdidas de amoníaco desde urea aplicada en otoño y primavera a una pastura de agropiro alargado (Thinopyrum ponticum)
| dc.creator | P. A. Barbieri | |
| dc.creator | H.E. Echeverría | |
| dc.date | 2003 | |
| dc.date.accessioned | 2026-07-07T03:40:30Z | |
| dc.description | Nitrogen (N) fertilization increased tall wheatgrass pasture (Thinopyrumponticum) production; however, nitrogen use efficiency is low probably asconsequence of ammonia (N-NH3) volatilization losses. Therefore, the objectiveof this study was to quantify the magnitude of N-NH3 volatilization losses fromurea applied to tall wheatgrass pasture. The experiment was carried out atBalcarce, on a typic Natracuol and the treatments were: control, 90 and 180 kgha-1 de N (90N and 180N, respectively) as urea (46-0-0) broadcast in autumn andspring. Losses of N-NH3 volatilized were measured using a semi open static method.Nitrogen applications produced N-NH3 volatilization losses depending of N rates(17 y 48 kg N ha-1 average for 90 and 180 N, respectively) and application time(23 and 20 % of N applied in autumn and spring, respectively). In both fertilizationtimes a close association was obtained between soil ammonium content (0-10cm) and N-NH3 volatilization losses (p<0,001 r2=0,71 in autumn and p< 0,10 r2=0,21in spring). Volatilization of N-NH3 in sodic soils of cattle aptitude is an importantmechanism of N loss of the system, and explains the half of no recovered Nfertilizer by the pasture. The volatilization losses occurred in a short period afterfertilization | |
| dc.format | application/pdf | |
| dc.identifier | 0325-8718 | |
| dc.identifier | https://www.redalyc.org/articulo.oa?id=86432102 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/440482 | |
| dc.language | en | |
| dc.publisher | Instituto Nacional de Tecnología Agropecuaria | |
| dc.relation | http://www.redalyc.org/revista.oa?id=864 | |
| dc.rights | RIA. Revista de Investigaciones Agropecuarias | |
| dc.source | RIA. Revista de Investigaciones Agropecuarias (Argentina) Num.1 Vol.32 | |
| dc.subject | Agrociencias | |
| dc.title | Evolución de las pérdidas de amoníaco desde urea aplicada en otoño y primavera a una pastura de agropiro alargado (Thinopyrum ponticum) | |
| dc.type | artículo científico |