Nutrient partitioning and stoichiometry in soybean: A synthesis-analysis

Tamagno, Santiago; Balboa, G. R.; Assefa, Yared; Kovács, P.; Casteel, Shaun N.; Salvagiotti, Fernando; García, Fernando O.; Stewart, W. M.; Ciampitti, Ignacio A.

doi:10.1016/j.fcr.2016.09.019

Cited by 68 publications

(39 citation statements)

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“…Nitrogen/phosphorous ratio has been used mainly to assess whether N or P is more limiting for biomass production. Tamagno et al (2017) reported a N/P ratio of 11.4 for soybean with experiments in Argentina and the United States. In legumes, Sadras (2006) found that differences in P rather than N concentration better explain the N/P ratio variation, since N is more closely regulated by the plant compared with P. Nitrogen concentration in seeds is a conservative trait—small variation (Sinclair and de Wit, 1976; Jin et al, 2011) with a neutral trend over time (Long, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…We pursued a synthesis‐analysis, as in previous works (Ciampitti and Vyn, 2012, 2013, 2014; Ciampitti and Prasad, 2016; Tamagno et al, 2017). There is a tradeoff in pursuing a synthesis analysis rather than a meta‐analysis.…”

Section: Methodsmentioning

confidence: 99%

“…The proportion of variance ( R 2 ) was determined between residuals of the seed yield to plant traits such as plant nutrient uptake, nutrient concentration, and nutrient HI. The same procedure was implemented by Sadras (2006), Ciampitti and Vyn (2013), and Tamagno et al (2017).…”

Section: Methodsmentioning

confidence: 99%

“…Nutrient stoichiometry is useful to understand crop nutrient status, and nutrient ratios can be useful to comprehend nutrient supplies (Mo et al, 2015). Some recent studies have focused on nutrient stoichiometry in soybean (Mallarino et al, 2011; Salvagiotti et al, 2012; Divito and Sadras, 2014; Divito et al, 2016; Tamagno et al, 2017). For example, S/N ratio is a better indicator of soybean S status than S concentration alone (Divito et al, 2016).…”

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Shifts in Soybean Yield, Nutrient Uptake, and Nutrient Stoichiometry: A Historical Synthesis‐Analysis

2018

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Few studies have investigated changes over time in nutrient uptake and yield, in addition to the study of nutrient stoichiometry as a metric of nutrient limitations in soybean [Glycine max (L.) Merr.]. A comprehensive synthesis‐analysis was performed by compiling a global historical soybean database of yield, total biomass, and nutrient (N, P, and K) content and concentration in studies published from 1922 to 2015. This period was divided in three eras based on genetically modified soybean events: Era I (1922–1996), Era II (1997–2006), and Era III (2007–2015). The main findings of this review are: (i) seed yield improved from 1.3 Mg ha−1 in the 1930s to 3.2 Mg ha−1 in the 2010s; (ii) yield increase was primarily driven by increase in biomass rather than harvest index (HI); (iii) both N and P HIs increased over time; (iv) seed nutrient concentration remained stable for N and declined for both P (18%) and K (13%); (v) stover nutrient concentration remained stable for N, diminished for P, and increased for K; (vi) nutrient ratios portray different trends for N/P (Era I and III > II), N/K (Era I > II and III), and K/P (Era II and III > I); (vii) yield per unit of nutrient uptake (internal efficiency) increased for N (33%) and P (44%) and decreased for K (11%); and (viii) variations in nutrient internal efficiency were primarily explained by increase in nutrient HI for N and K, but equally explained by both HI for P and seed P concentration. These findings have implications for soybean production and integrated nutrient management to improve yield, nutrient use efficiency, and seed nutrient composition.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Shifts in Soybean Yield, Nutrient Uptake, and Nutrient Stoichiometry: A Historical Synthesis‐Analysis

2018

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“…Foi reportado valores médios entre 66-69% de remobilização de N após R5.5 dos órgãos vegetativos para as sementes em formação(Gaspar et al, 2017). Em adição, remobilização total de N de 59% foi reportada, sendo 65% remobilizado das folhas e 32% de hastes(BENDER et al, 2015).O índice de colheita de N (ICN) representa uma relação entre o conteúdo total de N nos grãos e o N acumulado na parte aérea das plantas em R8(KOUTROUBAS et al, 1998).Uma forma de aumentar o conteúdo de N nos grãos e consequentemente o ICN seria aumentar a remobilização de N dos órgãos vegetativos das plantas através do melhoramento genético(TAMAGNO et al, 2017).Um valor médio de ICN de 73% foi encontrado porBender et al (2015) em áreas de rendimento médio de 3.480 kg ha -1 . Em ambientes mais produtivos (~4340 kg ha -1 ),Mastrodomenico et al (2012) determinaram valores de 86%.…”

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Caracterização do crescimento e acúmulo de nitrogênio em uma cultura de soja de elevada produtividade

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Soybean maturity group and planting date influence grain yield and nitrogen dynamics

Ortel¹,

Roberts²,

Hoegenauer³

et al. 2020

Agrosystems Geosci & Env

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Manipulation of soybean [Glycine max (L.) Merr.] maturity group (MG) and planting date will increase the yield of a soybean crop while simultaneously influencing the potential soil-nitrogen (N) credits. Variations in N returned to the soil by soybean can significantly affect the amount of fertilizer-N needed for the subsequent crop. Four soybean MGs (3.5, 4.7, 5.4, and 5.6) were evaluated at optimal and late planting dates in Arkansas. Grain yield was significantly different among MGs in 2016 (P = .0012) and 2017 (P = .0004), with the 4.7 MG consistently yielding the highest at 3,232 kg ha −1. Plant total aboveground N uptake (TNU) increased with increasing grain yield (P = .0167) and was significantly higher when planted in an optimal planting window (P = .0004). The N removed from the cropping system through grain harvest (147-201 kg N ha −1) was significantly different among MGs in 2016 (P < .0001) and in 2017 was significantly influenced by the planting date × MG interaction (P = .0397). The net N returned to the soil through unharvested biomass (24-75 kg N ha −1) was not influenced by planting date (P = .7796) or MG (P = .3475); however, net N returned decreased as grain yield increased (P = .0522). An optimum planting date of a well-adapted soybean MG produces the highest grain yield, TNU, and N removed from the cropping system, identifying a relationship that allows producers to achieve maximum profitability while minimizing inputs to the whole farm system. 1 INTRODUCTION Relative maturity group (MG) of soybean [Glycine max (L.

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Nutrient partitioning and stoichiometry in soybean: A synthesis-analysis

Cited by 68 publications

References 50 publications

Shifts in Soybean Yield, Nutrient Uptake, and Nutrient Stoichiometry: A Historical Synthesis‐Analysis

Shifts in Soybean Yield, Nutrient Uptake, and Nutrient Stoichiometry: A Historical Synthesis‐Analysis

Caracterização do crescimento e acúmulo de nitrogênio em uma cultura de soja de elevada produtividade

Soybean maturity group and planting date influence grain yield and nitrogen dynamics

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