Effects of nitrogen and phosphorus supply, and ofRhizobium and VAM fungus inoculants on dinitrogen fixation in soybean

Soliman, S. M.; El-Ghandour, I. A.; Khadra-Abbady, A.

doi:10.1007/bf02814699

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…Net input of N into the system only occurs if total N 2 fixed during the whole crop growth cycle exceeds the amount of N removed in al. (1992), Sharma (1992), Chien et al (1993), Ramamurthy & Shivashankar (1994), Thies et al (1995), Purcell & King (1996), Soliman et al (1996), Raychaudhuri et al (1997), Bly & Woodard (1997), Botha (1997) and Gan et al (1997Gan et al ( , 2000, but not or not always with those of Hardarson et al (1984), Herridge & Brockwell (1988), Ying et al (1992), Wood et al (1993), Borges & Mallarino (2000) and Seneviratne et al (2000). Reasons for such variations in response are not clear.…”

Section: Discussionmentioning

confidence: 99%

Physiological changes in soybean (Glycine max) Wuyin9 in response to N and P nutrition

Gan

Stulen

Keulen

et al. 2002

Annals of Applied Biology

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Phosphorus deficiency is a very common problem in the acid soil of central China. Previous research has shown that starter N and N topdressing at the flowering stage (R1) increased soybean (Glycine max) yield and N 2 fixation (Gan et al., 1997(Gan et al., , 2000. However, there is little information available concerning soybean response to P-fertiliser in soybean production in central China (Gan, 1999). A field experiment was conducted to investigate the response to P (0 kg P ha -1 , 22 kg P ha -1 , 44 kg P ha -1 before sowing) and N fertiliser application (N1: 0 kg N ha -1 , N2: 25 kg N ha -1 before sowing, N3: N2 + 50 kg N ha -1 at the V2 stage and N4: N2 + 50 kg N ha -1 at the R1 stage) on growth, yield and N 2 fixation of soybean. Both N and P fertiliser increased growth and seed yield of soybean (P < 0.01). Application of basal P fertiliser at 22 kg P ha -1 or 44 kg P ha -1 increased total N accumulation by 11% and 10% (P < 0.01) and seed yield by 12% and 13% (P < 0.01), respectively, compared to the zero P treatment. Although application of starter N at 25 kg N ha -1 had no positive effect on seed yield at any P level (P > 0.05), an application of a topdressing of 50 kg N ha -1 at the V2 or R1 stage increased total N accumulation by 11% and 14% (P < 0.01) and seed yield by 16% and 21% (P < 0.01), respectively, compared to the zero N treatment.Soybean plants were grown on sterilised Perlite in the greenhouse experiment to study the physiological response to different concentrations of phosphate (P1: 0 mM; P2: 0.05 mM; P3: 0.5 mM; P4:1.0 mN) and nitrate (N1: 0 mM with inoculation, N2: 20 mM with inoculation). The result confirmed that N and P nutrients both had positive effects on growth, nodulation and yield (P < 0.01). The relative importance of growth parameters that contributed to the larger biomass with N and P fertilisation was in decreasing order: (i) total leaf area, (ii) individual leaf area, (iii) shoot/root ratio, (iv) leaf area ratio and (v) specific leaf area. The yield increase at N and P supply was mainly associated with more seeds and a larger pod number per plant, which confirmed the result from the field experiment.

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Section: Discussionmentioning

confidence: 99%

Physiological changes in soybean (Glycine max) Wuyin9 in response to N and P nutrition

Gan

Stulen

Keulen

et al. 2002

Annals of Applied Biology

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“…in soybean has been found to enhance the growth and contribute nitrogen to the soybean plants [12]. However, the effectiveness of rhizobia and nodulation may be affected under high doses of applied nitrogenous fertilizers [32]. The high N requirement of the crop is fulfilled mainly by establishing N-fixing symbiosis with rhizobia.…”

Section: Introductionmentioning

confidence: 99%

Effect of Native Soybean Rhizobia and AM Fungi in the Improvement of Nodulation, Growth, Soil Enzymes and Physiological Status of Soybean Under Microcosm Conditions

et al. 2012

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The arbuscular mycorrhizal (AM) fungi-rhizobia synergism is a promising approach for improving the growth and nutrition of soybean. It is, therefore, imperative to evaluate potential soybean rhizobia and AM fungi singly to identify their stress protectant physiological traits, enhance growth and nodulation of soybean and improve soil health. The efficacy of five root nodulating soybean rhizobia and an indigenous AM fungus, Glomus intraradices, was evaluated on soybean (cv JS 93-05) under microcosm conditions. In general, all the inoculated plants showed higher fresh shoot and root weight, and nodule number as compared to uninoculated control plants. The plants inoculated with Bradyrhizobium japonicum (strain USDA 110), B. liaoningense 17c (MTCC 10753) and AM fungus showed higher growth and nodulation. However, the plants inoculated with rhizobia 12c (unidentified), B. japonicum DE2-5a (MTCC 10751) and USDA 205 did enhance nodulation but found at par with the other inoculated plants. Interestingly, these inoculated plants found to have comparatively higher nitrogen and phosphorus uptake. B. japonicum (strain USDA 110), native slow growing rhizobia isolate DE2-5a and AM fungi were also found to stimulate proline content in shoots, and trehalase and fluorescein diacetate activities in the rhizosphere soil. Considering the growth and physiological responses of AM fungi and rhizobial strains (DE2-5a and 17c) to soybean, there is a need for further testing the synergistic responses to evolve better survival candidates under drought-stress conditions.

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Combining the advantages of Rhizophagus intraradices and Serendipita indica to reduce the risk of Cd on soybean safety and environmental pollution

et al. 2023

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Effects of nitrogen and phosphorus supply, and ofRhizobium and VAM fungus inoculants on dinitrogen fixation in soybean

Cited by 5 publications

References 5 publications

Physiological changes in soybean (Glycine max) Wuyin9 in response to N and P nutrition

Physiological changes in soybean (Glycine max) Wuyin9 in response to N and P nutrition

Effect of Native Soybean Rhizobia and AM Fungi in the Improvement of Nodulation, Growth, Soil Enzymes and Physiological Status of Soybean Under Microcosm Conditions

Combining the advantages of Rhizophagus intraradices and Serendipita indica to reduce the risk of Cd on soybean safety and environmental pollution

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