Symbiotic Nitrogen Fixation in Tropical Food Grain Legumes: Current Status

Vieira, R. F.; Mendes, I. C.; Reis-Junior, Fábio Bueno dos; Hungría, Mariangela

doi:10.1007/978-3-211-99753-6_18

Cited by 13 publications

(14 citation statements)

References 251 publications

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“…After several years of inoculation, B. japonicum becomes established in the soil and any new organisms introduced with the seeds have low infection rate. This "competition" problem has been one of the major constraints to the introduction of new and more efficient strains (Vieira et al, 2010). Competitive exclusion is site specific and determined by a combination of factors related to the environment, the host plant, and the size and composition of the population of indigenous rhizobia (Vieira et al, 2010).…”

Section: Soybean Response To Inoculation With Bradyrhizobium Japonicumentioning

confidence: 99%

“…Detecting small but consistent yield improvements, against a background of biological variation, can present problems in field experiment designs using few replicates and limited numbers of sites (Edmeades, 2002;Vieira et al, 2010), especially when the weights recorded by most harvest equipment used in field trials are not precise and therefore also contribute to the variability of the results. Often, results from similar experiments will disagree as even well-planned studies are limited in statistical power (Olkin and Shaw, 1995).…”

Section: Soybean Response To Inoculation With Bradyrhizobium Japonicumentioning

confidence: 99%

“…In the past, the principal goal was to increase the yield potential of food crops and to maximize productivity. Today, the drive for productivity is increasingly combined with a desire for sustainability (Peoples et al, 1995;Vieira et al, 2010). The effective management of N is an essential element of agricultural sustainability (Zahran, 2010;Vieira et al, 2010).…”

Section: Soybean Response To Inoculation With Bradyrhizobium Japonicumentioning

confidence: 99%

“…oybean was fi rst cultivated in China and is now the most important annual grain legume in the world, with the United States, Brazil, and Argentina the leading producers (Vieira et al, 2010). Soybean is a host for the N 2 -fi xing bacteria, B. japonicum and B. elkanii, and they can obtain up to 50% or more of their N needs through biological nitrogen fi xation (BNF) when B. japonicum and B. elkanii are present in the soil (Elmore, 1984;Collino et al 2015).…”

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Soybean Response to Inoculation with Bradyrhizobium japonicum in the United States and Argentina

Leggett

Díaz‐Zorita²,

Koivunen

et al. 2017

Agronomy Journal

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Although the relevance of biological N nutrition of soybean [Glycine max (L.) Merr.] is recognized worldwide, inoculation with Bradyrhizobium japonicum shows variable results and the benefi t needs to be validated under current crop production practices. We conducted statistical analysis of soybean fi eld trial data to provide insight into factors aff ecting the effi cacy of soybean inoculation under contrasting crop production conditions. Most experimental sites, 187 trials in the United States and 152 trials in Argentina, were in soils with soybean history and naturalized B. japonicum strains. Yield increases were greater in Argentina (190 kg ha -1 equivalent to 6.39%) than in the United States (60 kg ha -1 equivalent to 1.67%). Tillage methods did not aff ect inoculant performance. In the United States, inoculation was more eff ective in soils with higher pH (>6.8) while in Argentina the greatest inoculation eff ect on crop production occurred in soils with a lower pH (<5.5). In the United States, where most of the trials were in rotation with corn (Zea mays L), the greatest positive eff ect of inoculation was observed in late planted soybean crops and independent of soil organic matter (SOM). In Argentina, the inoculant had its greatest eff ect in soils with no soybean history, a relatively high SOM, higher levels of soil extractable P and S, and in areas with greater precipitation during early reproductive growing stages. In both regions, the yield increases due to B. japonicum inoculation support the regular use of this practice to help provide adequate conditions for soybean production.M. Leggett, Novozymes BioAg, Research and Development, 3935 Th atcher Ave.,

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Section: Soybean Response To Inoculation With Bradyrhizobium Japonicumentioning

confidence: 99%

Section: Soybean Response To Inoculation With Bradyrhizobium Japonicumentioning

confidence: 99%

Section: Soybean Response To Inoculation With Bradyrhizobium Japonicumentioning

confidence: 99%

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confidence: 99%

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Soybean Response to Inoculation with Bradyrhizobium japonicum in the United States and Argentina

Leggett

Díaz‐Zorita²,

Koivunen

et al. 2017

Agronomy Journal

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show abstract

“…In 2007, the production of chemical nitrogen fertilizers was 130 million tons which is likely to increase further in the coming years (FAO, 2011). Their production requires a great consumption of fossil fuels (1-2 % global fossil fuel) and is subjected of constant variations in prices (Vieira et al, 2010). Although their direct contribution to energy consumption seems minimal, it is unnecessary and unsustainable.…”

Section: Wwwintechopencommentioning

confidence: 99%