scholarly journals Interplay between nitrogen fertilizer and biological nitrogen fixation in soybean: implications on seed yield and biomass allocation

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Santiago Tamagno ◽  
Victor O. Sadras ◽  
Jason W. Haegele ◽  
Paul R. Armstrong ◽  
Ignacio A. Ciampitti
Keyword(s):  
Nitrogen Fixation ◽  
Seed Yield ◽  
Biomass Allocation ◽  
Nitrogen Fertilizer ◽  
Biological Nitrogen Fixation ◽  
Biological Nitrogen

scholarly journals Nitrogen fixating ability of mungbean genotypes under different levels of nitrogen application

2016 ◽  
Vol 41 (1) ◽  
pp. 163-171 ◽  
Author(s):  
MA Razzaque ◽  
MM Haque ◽  
MA Karim ◽  
ARM Solaiman
Keyword(s):  
Nitrogen Fixation ◽  
Seed Yield ◽  
Biological Nitrogen Fixation ◽  
Yield Potential ◽  
Nitrogen Application ◽  
Culture Experiment ◽  
N Application ◽  
Biological Nitrogen ◽  
Different Levels ◽  
Pot Culture

A pot culture experiment was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during kharif II, 2012 to evaluate the nodulation, biological nitrogen fixation and yield potential of genotypes of mungbean under varying levels of N application. There were 10 mungbean genotypes viz. IPSA 12, GK 27, IPSA 3, IPSA 5, ACC12890055, GK 63, ACC12890053, BU mug 4, BARI Mung 6 and Binamoog 5, each genotype treated with six levels of N (0, 20, 40, 60, 80 and 100 kg N ha-1) . Among the genotypes, the IPSA 12 at 40 kg N ha-1 produced the maximum number of nodules (14.54 plant-1) as well as the highest nitrogen fixation (2.684 mmol C2H4). This resulted in the highest seed yield (14.22 g plant-1). The genotype ACC12890053 recorded the lowest nodulation (6 plant-1), nitrogen fixation (1.134) and seed yield (7.33 g plant-1).Bangladesh J. Agril. Res. 41(1): 163-171, March 2016

Cyanobacterial biological nitrogen fixation as a sustainable nitrogen fertilizer for the production of microalgal oil

2015 ◽  
Vol 12 ◽  
pp. 142-148 ◽  
Author(s):  
Mauro Do Nascimento ◽  
Lara Sanchez Rizza ◽  
Andres Arruebarrena Di Palma ◽  
Maria de los Angeles Dublan ◽  
Graciela Salerno ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Nitrogen Fertilizer ◽  
Biological Nitrogen Fixation ◽  
Microalgal Oil ◽  
Biological Nitrogen

scholarly journals Assessment of Nitrogen Uptake and Biological Nitrogen Fixation Responses of Soybean to Nitrogen Fertiliser with SPACSYS

2020 ◽  
Vol 12 (15) ◽  
pp. 5921
Author(s):  
Lu Wu ◽  
Thomas H. Misselbrook ◽  
Liping Feng ◽  
Lianhai Wu
Keyword(s):  
Nitrogen Fixation ◽  
Seed Yield ◽  
Biological Nitrogen Fixation ◽  
Management Practices ◽  
Nitrogen Addition ◽  
Application Rate ◽  
Nitrogen Budgets ◽  
Yield Increase ◽  
Biological Nitrogen ◽  
Scenario Testing

Chemical fertiliser nitrogen addition will inhibit biological nitrogen fixation (BNF) for soybean (Glycine max [L.] Merr) growth. The optimal balance of these two nitrogen input sources has been a key issue for sustainable development in Northeast China. We used the data collected from a four-year experiment with varied irrigation and fertiliser treatments from 2007 to 2010 to evaluate the SPACSYS (Soil-Plant-Atmosphere Continuum SYStem) model. The validated model was run to investigate the responses to different management practices in seed yield, BNF, protein yield and soil nitrogen budgets. Scenario testing showed average yield increase of 2.4–5.2% with additional 50–100 kg N/ha application. Irrigation at the reproductive stage improved seed yield in drier years with an increase of 12–33% compared with the rain-fed treatment. BNF was suppressed by fertiliser nitrogen application and drought stress with a decrease of 6–33% and 8–34%, respectively. The average nitrogen budget without fertilization indicated a deficit of 39 kg N/ha. To attain higher seed yield, applying fertiliser at 25–30 and 15–20 kg N/ha before sowing is advised in drier and wetter years, respectively. To achieve a higher seed nitrogen content, an application rate of 55–60 and 45–50 kg N/ha is recommended for drier and wetter years, respectively.

scholarly journals SOME ASPECTS OF RESEARCH AND FARMER USE OF LEGUME-BASED PASTURES IN BRITAIN

1979 ◽  
pp. 146-154
Author(s):  
R.J.M. Hay
Keyword(s):  
Nitrogen Fixation ◽  
New Zealand ◽  
Nitrogen Fertilizer ◽  
Biological Nitrogen Fixation ◽  
Disease Susceptibility ◽  
Research Effort ◽  
Legume Seed ◽  
Fertilizer Nitrogen ◽  
Biological Nitrogen ◽  
Large Research

Energy considerations, together with the removal of the U.K. Government's subsidy on nitrogen fertilizer, have not shifted farmer emphasis from heavy reliance on bag nitrogen. ADAS officials are still convinced that bag nitrogen rather than legume nitrogen is the answer to increased production, even though U.K. farmers are now applying nitrogen at 20 times their pre-war rates for a mere doubling of stock numbers over this period. Examples are given of farmers from different regions in Britain who are successfully basing their enterprises on legumes rather than fertilizer nitrogen, Problems of herbage legume seed multiplication are discussed, along with the prejudice legumes suffer in terms of unpredictability, persistence, disease susceptibility, bloat and oestrogenicity. There is clear need for a large research effort to be mounted in terms of biological nitrogen fixation in the U.K. The relevance to New Zealand agriculture-of a projected move of U.K. farmers away from fertilizer nitrogen is discussed in the light of the proposed Kapuni urea factory.

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