Late Foliar Diseases in Wheat Crops Decrease Nitrogen Yield Through N Uptake Rather than Through Variations in N Remobilization

Bancal, Marie-Odile; Roche, Romain; Bancal, Pierre

doi:10.1093/aob/mcn124

Cited by 38 publications

(50 citation statements)

References 30 publications

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“…In Finnish growing conditions, post-anthesis N uptake contributes roughly 30% of total nitrogen uptake . This is comparable with the figures presented by Bancal et al (2008).…”

Section: Introductionsupporting

confidence: 92%

“…Nitrogen availability during the growing period determines yield and N accumulation in grains (Peltonen-Sainio and Peltonen 1994, Muurinen 2007, Foulkes et al 2009). Grain protein originates from remobilized plant N resources and from N taken up during grain filling (Bancal et al 2008). In Finnish growing conditions, post-anthesis N uptake contributes roughly 30% of total nitrogen uptake .…”

Section: Introductionmentioning

confidence: 99%

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Slow-release fertilizer to increase grain N content in spring wheat

Rajala

Peltonen‐Sainio

2013

AFSci

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Low grain protein often restricts the use of grain lots for milling in Finland. Nitrogen availability during grain-filling may restrict grain protein accumulation, particularly in high yielding environments. Slow-release fertilizers could potentially sustain nitrogen availability during the grain-filling period. The aim of this study was to increase plant nitrogen uptake, grain yield and grain protein response of spring wheat cultivar ‘Amaretto’, using combinations of a regular and slow-release compound NPK fertilizer. Fertilizer treatment effects on grain yield was modest, however, slow-release fertilizer treatments lowered grain protein content as well as grain, straw and total plant N compared with control treatment. The total plant N was 10 to 27 kg ha-1 lower following application of slow-release fertilizer. The results clearly indicate that the release of N by the slow-release fertilizer tested in this trial was too slow for cool Finnish growing conditions.

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“…In Finnish growing conditions, post-anthesis N uptake contributes roughly 30% of total nitrogen uptake . This is comparable with the figures presented by Bancal et al (2008).…”

Section: Introductionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Slow-release fertilizer to increase grain N content in spring wheat

Rajala

Peltonen‐Sainio

2013

AFSci

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“…This divergence can be viewed and explained in two ways. First, by protecting against premature loss of green canopy, disease control allowed the potential benefit of higher N rates to canopy duration, and hence the period of grain filling, to be expressed, similar to effects observed by Bancal et al. (2008).…”

Section: Discussionmentioning

confidence: 93%

Quantifying the effect of interactions between disease control, nitrogen supply and land use change on the greenhouse gas emissions associated with wheat production

et al. 2010

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A method for calculating the effect of disease control on greenhouse gas (GHG) emissions associated with wheat production, reported previously, was developed further to account for effects of disease control on the amount of fertilizer nitrogen (N) which should be applied and on changes in land use. Data from nine randomized and replicated field experiments from the UK and Denmark showed that the economic optimum N input to winter wheat was greater if diseases were controlled by fungicides, than for untreated wheat. The GHGs associated with this additional N largely negated the benefit to emissions per tonne of grain resulting from disease control. However, the mean grain yield obtained without fungicide treatment was 6AE71 t ha, compared to 8AE88 t ha )1 with fungicide treatment, if N input was optimal for each situation. In the absence of disease control by fungicides, and assuming that the optimum N rate was used, an additional 481 kha of wheat would be required to maintain UK wheat production at the current level. If the additional land area came from converting temperate grassland to arable production, the GHG emissions caused by ploughing grassland would cause emissions to rise from 503 to 713 kg CO 2 e per tonne of grain produced. This would result in an additional 3AE15 Mt CO 2 e per year to produce the typical UK annual production of 15 Mt. This analysis reinforces the importance of winning the 'arms race' against pathogen evolution towards fungicide insensitivity and virulence.

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“…Porém, valores de grãos quebrados inferiores a 3% foram obtidos a partir de 100kg ha -1 de N, que é menor do que a dose de N recomendada para a cultura (120kg ha -1 N) (SOSBAI, 2007). Na cultura do arroz, a maior absorção de N pela planta garante maior proporção de clorofila e maior área foliar (BANCAL et al, 2008), , o que se reflete sobre a maior absorção de fotoassimilados. Segundo VAN OOSTEROM et al (2010), durante o enchimento de grãos, a senescência foliar pode afetar a oferta ou demanda de N na planta, sendo que o equilíbrio inadequado leva à senescência acelerada ou retardada (RAJCAN & TOLLENAAR, 1999), prejudicando diretamente a absorção dos fotoassimilados.…”

Section: Resultsunclassified

Adubação nitrogenada sobre rendimento industrial e composição dos grãos de arroz irrigado

et al. 2013

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RESUMO O efeito de doses em cobertura de adubação nitrogenada foi avaliado sobre o rendimento do beneficiamento, a incidência de grãos gessados e barriga branca, os teores ABSTRACT The effect of nitrogen (N) fertilization levels was assessed by the industrial yield, the incidence of chalky and white belly grains as well as protein and amylose content of IRGA 422CLcultivar polished grains. The experiment was consisted with N levels applied in coverage using urea as a N source. The first application (0, 40, 63, 80 and 120kg ha -1 of N) was carried out on a main plot (10x5m) and the second application (0, 25, 50 and 75kg ha -1

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Late Foliar Diseases in Wheat Crops Decrease Nitrogen Yield Through N Uptake Rather than Through Variations in N Remobilization

Cited by 38 publications

References 30 publications

Slow-release fertilizer to increase grain N content in spring wheat

Slow-release fertilizer to increase grain N content in spring wheat

Quantifying the effect of interactions between disease control, nitrogen supply and land use change on the greenhouse gas emissions associated with wheat production

Adubação nitrogenada sobre rendimento industrial e composição dos grãos de arroz irrigado

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