| dc.creator | Haile,D | |
| dc.creator | Nigussie,D | |
| dc.creator | Ayana,A | |
| dc.date | 2012-09-01 | |
| dc.date.accessioned | 2019-04-25T12:39:58Z | |
| dc.date.available | 2019-04-25T12:39:58Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300002 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/61007 | |
| dc.description | The experiment was conducted to assess the effects of nitrogen (N) rate and time of application on N use efficiency (NUE) of bread wheat, and their association with grain yield and protein content. Factorial combinations of four N levels, two bread wheat varieties and three timings of N applications were laid out in a randomized complete block design. N rate significantly influenced grain yield, protein content, N uptake efficiency, N biomass production efficiency, N utilization efficiency, N use efficiency for grain and N use efficiency for protein yield. Time of N application had highly significant effect on grain yield, protein content and NUE traits. Rate of N application and variety were significantly interacted to influence grain yield. Grain yield for Madda Walabu found sharply increase with each increase in N application rate. The improved variety provided significantly higher grain yield, N utilization efficiency and N use efficiency for grain yield (NUEGY) when N was applied 1/4 at planting, 1/2 at mid-tillering, and 1/4 at anthesis. Variations in NUEGY were explained more by the variations in N uptake efficiency. Harvest index contribution to NUEGY was higher for the local variety. Although NUE significantly decreased with increasing N rates, yield response of the varieties did not plateau out. | |
| 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/S0718-95162012005000002 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Journal of soil science and plant nutrition v.12 n.3 2012 | |
| dc.subject | Grain yeild | |
| dc.subject | protein | |
| dc.subject | variety | |
| dc.subject | uptake | |
| dc.subject | utilization | |
| dc.subject | biomass production | |
| dc.title | Nitrogen use efficiency of bread wheat: Effects of nitrogen rate and time of application | |
