Nitrogen Use Efficiency of Spring Wheat Genotypes under Field and Lysimeter Conditions

Abstract

Lysimeters and neighbouring fields were used from 1998 to 2000 to assess parameters of N use efficiency of three Swiss spring wheat (Triticum aestivum L.) genotypes. An old (Albis), a new (Toronit) and an experimental genotype (L94491) were compared with no and ample (250 kg N ha−1) N fertilizer supply. N fertilization increased biomass, grain yield and grain N concentration of all genotypes in all years and in both testing systems (field, lysimeters) but only a few genotype × N interactions were observed. Generally, Toronit was superior in producing biomass and grain yield and L94491 in accumulating N in the grain resulting in identical N biomass yields. Albis showed the lowest and Toronit the highest fertilizer recovery, irrespective of the method of calculation (15N or difference method). The medium yielding L94491 recovered similar amounts of fertilizer N as Toronit, mainly due to the high N concentration in the biomass. The ranking of the genotypes for the investigated traits was similar in both testing systems and results comparable with those reported in the literature, indicating that the lysimeter facility is suitable for investigations of agronomic traits on soil–plant relationships, where a constant recording of the soil properties is required.

Influence of fertilization and soil tillage on nitrogen uptake and utilization efficiency of quinoa crop ( Chenopodium quinoa Willd.).

“…In another study, Thanapornpoonpong (2004) also demonstrated the positive effect of nitrogen fertilization on seed nitrogen content of quinoa crop. Similarly, increase of grain nitrogen accumulation and concentation was caused in other crops (wheat, soybean) by nitrogen fertilization (Hayati et al, 1996;Noulas et al, 2004). Moreover, Delogu et al (1998) demonstrated that after application of 80 kg N ha -1 in barley, the nitrogen content in grain was enhanced by about 18% compared to the control.…”

A global and high-resolution assessment of the green, blue and grey water footprint of wheat

“…Globally, wheat accounts for about 17% of total fertilizer use and 19% of the total nitrogen fertilizer consumption. A number of authors show that about 45-85% of the applied nitrogen fertilizer is recovered by the plant (Addiscot, 1996;King et al, 2001;Ma et al, 2009;Noulas et al, 2004). On average, about 16% of the applied nitrogen is presumed to be lost either by denitrification or leaching (Addiscot, 1996).…”

Cultivar improvement and environmental variability in yield removed nitrogen of spring cereals and rapeseed in northern growing conditions according to a long-term dataset

“…As NUE range and NHI range were only rough estimates, they were not necessarily included in statistical analyses. Benchmarking with documented cereal NHI values, showed our NHI range estimates to be close to or even exceeding 80% (Spiertz and de Vos 1983, Feil 1997, Noulas et al 2004), though NHI is strongly affected by e.g. weather conditions (Feil, 1997).…”

“…In northern Europe this occurs, for example, when N is not taken up adequately at pre-heading because of typical early summer drought (Peltonen-Sainio et al 2010), manure is used or elevated late summer temperatures stimulate excess N mobilization from soil (Rajala et al 2007). Typically N uptake values for fertilized wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) range from 20% to 100% of fertiliser applied in temperate regions (Gauer et al 1992, Le Gouis et al 2000, Sinebo et al 2003, Noulas et al 2004). This indicates considerable induced variability in N uptake according to growing conditions and challenges sustainable and economic fertilizer use.…”