The effect of tillage system and residue management on grain yield and nitrogen use efficiency in winter wheat in a cool Atlantic climate

Brennan, J. M.; Hackett, Richard; McCabe, T.; Grant, James; Fortune, R.A.; Forristal, P. D.

doi:10.1016/j.eja.2013.11.009

Cited by 94 publications

(69 citation statements)

References 31 publications

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“…In many cases, it has been shown that NT had a negative impact on NUE, mostly because grain yield was reduced [11,40,43]. In other studies, it was found that NUE was increased under NT conditions, probably due to a reduction in plant N uptake.…”

Section: Discussionmentioning

confidence: 89%

Investigating the Combined Effect of Tillage, Nitrogen Fertilization and Cover Crops on Nitrogen Use Efficiency in Winter Wheat

et al. 2017

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A field study was conducted in northern France over two consecutive years to evaluate the combined effect of conventional tillage (CT) vs no till (NT) with or without cover crops (cc) and nitrogen (N) fertilization on various agronomic traits related to N use efficiency in winter wheat. Five years after conversion of CT to NT, significant increases in N use efficiency, N utilization efficiency, N agronomic efficiency, N partial factor productivity, N apparent recovery fraction and N remobilization were observed under three N fertilization regimes (0, 161, 215 kg ha −1 ). It was also observed that grain yield and grain N content were similar under CT and NT. The N nutrition index was higher under NT at the three rates of N fertilization. Moreover, N use efficiency related traits were increased in the presence of cc both under NT and CT. Thus, agronomic practices based on continuous NT in the presence of cc, appear to be promising strategies to increase N use efficiency in wheat, while reducing both the use and the loss of N-based fertilizers.

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Section: Discussionmentioning

confidence: 89%

Investigating the Combined Effect of Tillage, Nitrogen Fertilization and Cover Crops on Nitrogen Use Efficiency in Winter Wheat

et al. 2017

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“…GY, BY and HI showed significant increase under high N rates which constitutes a confirmation of many other studies (Guarda et al , ; Chen et al , ). The increased GY from 0.29 kg m −2 (0 N) to 0.57 kg m −2 (250 N) have been associated with increased total N uptake particularly below 200 N; while between 200 and 350 N no effect was observed (Sylvester‐Bradley & Kindred, ; Hawkesford, ; Brennan et al , ) as wheat tested genotypes reached probably their yield potential. Maximum BY and HI were observed under 250 N. These results agree with those obtained on bread wheat (Hussain et al , ).…”

Section: Discussionmentioning

confidence: 96%

“…According to Cassman et al (), PFP N can be increased by increasing the levels of N or by increasing the efficiency of this nutrient uptake and utilisation for grain production. The relative importance of each yield component is affected by many factors, including genotype, environmental conditions and farmer practices (Brennan et al , ; Ortiz‐Monasterio et al , ). This includes N availability for the plant assimilation as well as N remobilisation from leaves to grains during the filling stages.…”

Section: Introductionmentioning

confidence: 99%

Effects of nitrogen rates on grain yield and nitrogen agronomic efficiency of durum wheat genotypes under different environments

et al. 2015

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Durum wheat is an important staple food crop in Tunisia and other Mediterranean countries and is grown in various climatic conditions. Production and yield are however severely limited not only by drought events but also by reduced levels of nitrogen fertilisation. A study was carried out at two locations in the sub-humid area of Tunisia: Mateur in 2009-10 and 2010-11 and Beja in 2011-12 and 2012-13 under rainfed conditions. Four durum wheat genotypes (landraces: Bidi, Azizi; improved: Om Rabia, Khiar) were evaluated for nitrogen agronomic efficiency and related agronomic traits under various nitrogen rates: 0, 50, 100, 150, 200 and 250 kg N ha −1 , with three replications. There was a significant interaction effect (P ≤ 0.001) environments × genotypes × N treatments for grain yield (GY), biomass yield (BY), harvest index (HI), partial factor productivity of applied nitrogen (PFP N ) and nitrogen agronomic use efficiencies (NAE). GY was the most affected trait by nitrogen applied showing an increase of 94% under high N treatment (250 kg N ha −1 ) compared to control plots without N treatments. A significant linear regression exists between GY (0 N) and GY for the different N rates (r = 0.70; P < 0.001). This effect was more pronounced for improved genotypes than landraces for all parameters excepting BY and NAE BY . BY showed +11% increase in landraces than improved genotypes. PFP N showed an average decrease of 65% under high-N fertilisation with 10% prevalence for improved genotypes. Landraces tend to promote vegetative growth while grain filling efficiency was higher for improved genotypes.

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“…To meet this challenge, we need a detailed understanding of available genetic variation in N response, using field and controlled environment approaches to assess the responsiveness of genotypes to supplied N, and dissection of N metabolic pathways. However, NUE and N response are complex traits which show inconsistent trends across years and sites (Hirel et al 2001;Chen et al 2004;Brennan et al 2014). Accordingly, the integration of agronomic, physiological and molecular data will be important for selection of the best genotypes with high NUE in specific environments (Hirel et al 2007;Pathak et al 2008;Sylvester-Bradley and Kindred 2009).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Australian wheat genotypes for response to variable nitrogen application

Mahjourimajd

Kuchel²,

Langridge

et al. 2015

Plant Soil

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Aims The key aim was to assess the genetic variation for nitrogen (N) response and stability in spring wheat germplasm to determine the scope for improvement of nitrogen use efficiency (NUE) under water-limited, low yielding conditions. A further aim was to evaluate NUE stability and NUE-protein yield (PY) as suitable NUErelated traits for selection. Methods The traits measured included grain yield (GY, kg ha) and NUE (kg GY kg −1 N) under varying N applications at all sites, and NUE for protein yield (NUE-PY), harvest index and plant height at some sites.In addition, two of the trials used two seeding rates to provide an assessment of the impact of plant density on NUE.Results Genetic variation was significant for all traits studied. Grain yield was affected by both genotype (G) and N rate and the interaction between the two. Interestingly, harvest index and height showed no direct response to varying N applications. However, for these traits, there was a significant G effect and N response (G × N interaction).Conclusions Increasing N inputs led to variable responses for GY at different sites. Importantly, genetic variation in N response was detected. The information and screening techniques will enable plant breeders to select wheat genotypes that show a consistent response to high N. There is clear scope to improve NUE in spring wheat grown in low yielding environments.

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The effect of tillage system and residue management on grain yield and nitrogen use efficiency in winter wheat in a cool Atlantic climate

Cited by 94 publications

References 31 publications

Investigating the Combined Effect of Tillage, Nitrogen Fertilization and Cover Crops on Nitrogen Use Efficiency in Winter Wheat

Investigating the Combined Effect of Tillage, Nitrogen Fertilization and Cover Crops on Nitrogen Use Efficiency in Winter Wheat

Effects of nitrogen rates on grain yield and nitrogen agronomic efficiency of durum wheat genotypes under different environments

Evaluation of Australian wheat genotypes for response to variable nitrogen application

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