Relationship between P and N concentrations in maize and wheat leaves

Bélanger, Gilles; Claessens, Annie; Ziadi, Noura

doi:10.1016/j.fcr.2011.04.007

Cited by 19 publications

(9 citation statements)

References 27 publications

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“…Salvagiotti et al (2009) found that S fertilization in the wheat crop improved the N use effi ciency by increasing N uptake by plants due to N × S interaction. Anyway, leaf concentrations of P and S in all treatments were in the suffi cient range for wheat crop (Bélanger et al 2011;Steinfurth et al 2012).…”

Section: Resultsmentioning

confidence: 99%

Nitrogen fertilization in top dressing for wheat crop in succession to soybean under a no-till system

et al. 2017

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Agricultural intensification to improve wheat yield has increased the demand for nitrogen fertilizers. This study aimed to investigate the wheat response in succession to soybean due to application of nitrogen rates and sources in top dressing, as well as to determine the N rates of maximum technical yield (MTY) and maximum economic yield (MEY). A field experiment was carried out in Ponta Grossa, Paraná State, Brazil, on a clayey Typic Hapludox

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Section: Resultsmentioning

confidence: 99%

Nitrogen fertilization in top dressing for wheat crop in succession to soybean under a no-till system

et al. 2017

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“…The P concentration in relation to N in maize under non-limiting N conditions was described by the linear relationship developed by Ziadi et al (2007), Greenwood et al (2008), Bélanger et al (2011) and Ciampitti et al (2013). Bélanger et al (2011) reported linear-plateau relationships between maize and wheat leaf N and P concentrations considering the growing season and linear relationships when considering stem elongation for wheat and silking for maize. Maize shoot biomass P was also strongly linearly correlated to shoot biomass N as reported by Kamprath (1987).…”

Section: Resultsmentioning

confidence: 99%

“…Similar to Ncrit, plant critical phosphorus concentration (Pcrit) in shoot biomass has been determined for phosphorus diagnosis in plants for efficient nutrient management practices (Ulrich andBerry, 1961, Salette andBélanger and Ziadi, 2008). While most studies address the utilisation of NNI (Zaidi et al, 2008(Zaidi et al, , 2009Yue et al, 2012; and N-P (Kamprath, 1987;Bélanger et al, 2011;Djaman et al, 2012) relationships as a management strategy in fully-irrigated settings, the relevant management tools were not developed and evaluated for crop nutrient management under limited irrigation and rainfed conditions. The application of the fertiliser recommendations that were developed for fully-irrigated settings may not be effective or even environmentally sustainable (e.g., greater leaching potential due to excessive fertiliser applications) under limited irrigation or rainfed settings (Djaman et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of critical nitrogen and phosphorus models for maize under full and limited irrigation conditions

Djaman

Irmak

2017

Ital J Agronomy

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Proper nitrogen (N) fertiliser application rates and timing of application, coupled with optimum irrigation management can improve the sustainability of maize production and reduce the risk of environmental contamination by nutrients. The impact of full and limited irrigation and rainfed conditions on in-season maize (Zea mays L.) shoot biomass nutrient concentration and critical N and phosphorus (P) indices were evaluated using a combination of measured nutrients and critical N and P models in south central Nebraska in 2009 and 2010. Four irrigation treatments [fully-irrigated treatment (FIT), 75% FIT, 60% FIT and 50% FIT) and rainfed] were imposed. Irrigation regimes impacted the shoot biomass N concentration. The shoot biomass N concentration was above the critical N (Ncrit) concentration throughout the growing season under FIT and 75% FIT and was below the Ncrit value for the most limited irrigation (60% FIT and 50% FIT) and rainfed treatments. Nitrogen nutrient index (NNI) varied from 0.68 to 2.0. Biomass N concentration was below Ncrit [i.e., NNI<1] from 105 days after planting (DAP) to harvest under rainfed and 50% FIT and from 114 DAP to harvest under 60% FIT. Overall, the FIT and the 75% FIT had NNI values greater than 1.0 throughout both growing seasons. Phosphorus concentration, which decreased with biomass accumulation and irrigation amounts, varied from 1.0 to 4.8 g kg -1 , with FIT having the highest biomass P concentration. The critical N model combined with NNI can be used to evaluate N and P in maize for in-season nutrient diagnosis under the conditions presented in this research.

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“…However, evaluation of short-term P and nitrogen (N) availability in soils with unevenly distributed nutrients is complex and may require plant analyses. Previous studies linking P and N availability in soil to corn growth have focused on concentrations in shoots or in leaves (e.g., Mallarino 1996;Plénet and Lemaire 2000;Bélanger et al 2011). Analyses of nutrient concentrations in the youngest fully developed leaf (YFDL) are more feasible than harvesting shoots to evaluate crop N (e.g., Chapman and Barreto 1997) and P status (e.g., Frydenvang et al 2015).…”

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confidence: 99%

“…Analyses of nutrient concentrations in the youngest fully developed leaf (YFDL) are more feasible than harvesting shoots to evaluate crop N (e.g., Chapman and Barreto 1997) and P status (e.g., Frydenvang et al 2015). Previous studies relating leaf to shoot concentrations considered plants beyond the V8 to V10 development stage (e.g., Ziadi et al 2009;Bélanger et al 2011) and it remains unclear if P and N concentrations in the YFDL represent concentrations in shoots during earlier growth stages, where optimal nutrient availability is critical for obtaining maximal final yields. Our objectives were to test if (i) P concentration in the YFDL was related to that in the shoot during the early growth of corn and (ii) P and N concentration or N to P ratio in the YFDL and shoots could serve as indicators of subsequent shoot dry matter (DM) yield.…”

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confidence: 99%

Do phosphorus and nitrogen contents in young corn leaves represent contents in shoots?

et al. 2018

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For corn grown on two light-textured soils, leaf P and N concentrations at the six-leaf stage represented their respective concentrations in shoots. At the seven/eight-leaf stage, the P concentration was higher in leaves than in shoots. Biomass at the seven/eight-leaf stage is linked to the N to P ratio in leaves and shoots at the six-leaf stage.Résumé : La concentration foliaire de P et de N au stade de la sixième feuille concorde avec celle relevée dans la pousse chez le maïs cultivé sur deux sols de texture légère. Au stade de la septième ou huitième feuille, la concentration de P était plus élevée dans les feuilles que dans la pousse. Mesurée au stade de la septième/huitième feuille, la quantité de biomasse est liée au ratio N/P qu'on observe dans les feuilles au stade de la sixième feuille. [Traduit par la Rédaction] Mots-clés : stade de développement, concentration de phosphore et d'azote, pousse, plus jeune feuille entièrement développée, Zea mays.

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Relationship between P and N concentrations in maize and wheat leaves

Cited by 19 publications

References 27 publications

Nitrogen fertilization in top dressing for wheat crop in succession to soybean under a no-till system

Nitrogen fertilization in top dressing for wheat crop in succession to soybean under a no-till system

Evaluation of critical nitrogen and phosphorus models for maize under full and limited irrigation conditions

Do phosphorus and nitrogen contents in young corn leaves represent contents in shoots?

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