dc.creator | Salazar,F | |
dc.creator | Alfaro,M | |
dc.creator | Ledgard,S | |
dc.creator | Iraira,S | |
dc.creator | Teuber,N | |
dc.creator | Ramírez,L | |
dc.date | 2011-01-01 | |
dc.date.accessioned | 2019-04-25T12:39:46Z | |
dc.date.available | 2019-04-25T12:39:46Z | |
dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-95162011000200009 | |
dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/60954 | |
dc.description | Most of the studies on nitrogen (N) leaching have been carried out on cut grass, and there is a lack of information on beef grazed grasslands. The objective of this study was to quantify N runoff and leaching losses in beef production systems with two different immediate stocking rates (63 and 191 Holstein Friesian steers ha-1 day-1) and two land slopes (4 and 12%). Runoff and leachate samples were analyzed from 2004 to 2006 for total N, nitrate and ammonium. No significant differences for the total N losses were found between treatments (p > 0.05), which were low ranging from 0.9 to 26.8 kg N ha-1 yr-1. The main pathway for the losses was leaching, which contributed >99% of the total N lost. The main form of N leaching was nitrate-N (>84%). Nitrate-N concentration in runoff samples was high, averaging 14 to 31 mg L-1. We suggest that these low N losses could be related the low N fertiliser inputs in the pasture and to the N adsorption properties of volcanic soils and, so that further research is required on this subject. | |
dc.format | text/html | |
dc.language | en | |
dc.publisher | Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo | |
dc.relation | 10.4067/S0718-95162011000200009 | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.source | Journal of soil science and plant nutrition v.11 n.2 2011 | |
dc.subject | grazing | |
dc.subject | beef production | |
dc.subject | nitrogen leaching | |
dc.subject | runoff | |
dc.subject | volcanic soils | |
dc.title | EFFECT OF THE STOCKING RATE AND LAND SLOPE ON NITROGEN LOSSES TO WATER ON A GRAZED PASTURE OF SOUTHERN CHILE | |