Effects of nitrogen application rate on grain yield and grain nitrogen concentration in two maize hybrids with contrasting nitrogen remobilization efficiency

Nitrogen use efficiency and fertiliser fate in a long-term experiment with winter cover crops

“…Gabriel and Quemada, 2011). Similar values were reported by Bundy and Andraski (2005;between 42% and 81%) and by Chen et al (2015;between 66% and 73%), who compared different maize hybrids at different N rates. The 15 N translocation, as N R-grain /N R-plant , was similar (on average, 64% and 75%…”

Grain sorghum nitrogen use as affected by planting practice and nitrogen rate

“…Kamoshita et al, (1998), reported that increased N application resulted in increased grain N concentration in grain sorghum. Similar observation have been made with N concentration in grassland yield and maize (Ortega et al, 2016;Chen et al, 2015). As N rate increased, the amount of N translocated from bio- Hirel et al, (2007), after flowering, the amount of N accumulated in the plant biomass is remobilized and translocated to the grain.…”

Nitrogen Uptake and Response to Radiation Distribution in the Canopy of High‐Yield Maize

“…In previous studies, LNC was not significantly correlated with grain yield (Fig. Therefore, higher GNC may not contribute to higher grain yield, since higher GNC may require greater remobilization of N from vegetative organs (Uribelarrea et al, 2007;Kosgey et al, 2013;Chen et al, 2015b). For example, the average LNC was reported to be >30.0 g N kg −1 by Pampana et al (2009) and Kosgey et al (2013), which is greater than that measured in our study; however, their average grain yield was £15 Mg ha −1 , which was less than that measured in our study and may be partially due to different cultivars.…”

“…4A). From the perspective of breeding, selecting stay-green cultivars with greater post-silking N uptake and less N remobilization can maintain leaf function and increase grain yield (Hirel et al, 2007;Chen et al, 2015bChen et al, , 2015c. Other studies reported less LNC but with yield of ?13.0 Mg ha −1 (Liu et al, 2014b;Zhou et al, 2017).…”