Research Article
Nitrogen Fertilizer Rate and Cultivar Interaction Effects on Nitrogen Recovery, Utilization Efficiency, and Agronomic Performance of Spring Barley
Table 4
Nitrogen use efficiency traits of three spring barley cultivars grown under three rates of N fertilizer (0, 50, and 100 kg ha−1) at Lacombe, Alberta, Canada, during 1994 to 1996.
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NUE, nitrogen use efficiency, grain yield per unit of available N (soil N + applied); ANUE, applied nitrogen use efficiency, increase in grain yield over unfertilized control per unit of applied N; UTE, nitrogen utilization efficiency, final grain yield per unit of N uptake; BPE, biomass production efficiency, biomass yield per unit of N taken up; and HI, harvest index, the ratio of grain yield to biomass at harvest maturity. Means of different N rates within cultivar or overall mean followed by different letters are significantly different at . |