On-farm Evaluation of Biological Nitrogen Fixation Potential and Grain Yield of Lablab and Two Soybean Varieties in the Northern Guinea Savanna of Nigeria

2005 ◽  
Vol 73 (2-3) ◽  
pp. 267-275 ◽  
Author(s):  
J. A. Okogun ◽  
N. Sanginga ◽  
R. Abaidoo ◽  
K. E. Dashiell ◽  
J. Diels
Keyword(s):  
Nitrogen Fixation ◽  
Grain Yield ◽  
Biological Nitrogen Fixation ◽  
Northern Guinea Savanna ◽  
Guinea Savanna ◽  
Biological Nitrogen ◽  
On Farm

Contribution of biological nitrogen fixation to cowpea: a strategy for improving grain yield in the semi-arid region of Brazil

2003 ◽  
Vol 38 (6) ◽  
pp. 333-339 ◽  
Author(s):  
L. M. V. Martins ◽  
G. R. Xavier ◽  
F. W. Rangel ◽  
J. R. A. Ribeiro ◽  
M. C. P. Neves ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Grain Yield ◽  
Biological Nitrogen Fixation ◽  
Arid Region ◽  
Semi Arid Region ◽  
Biological Nitrogen ◽  
Semi Arid

scholarly journals Bradyrhizobium as the Only Rhizobial Inhabitant of Mung Bean (Vigna radiata) Nodules in Tropical Soils: A Strategy Based on Microbiome for Improving Biological Nitrogen Fixation Using Bio-Products

2021 ◽  
Vol 11 ◽  
Author(s):  
Vinício Oliosi Favero ◽  
Rita Hilário Carvalho ◽  
Victória Monteiro Motta ◽  
Ana Beatriz Carneiro Leite ◽  
Marcia Reed Rodrigues Coelho ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Plant Growth ◽  
Grain Yield ◽  
Bacterial Diversity ◽  
Biological Nitrogen Fixation ◽  
Mung Bean ◽  
Soil Microbial Communities ◽  
Tropical Soils ◽  
Soil Samples ◽  
Biological Nitrogen

The mung bean has a great potential under tropical conditions given its high content of grain protein. Additionally, its ability to benefit from biological nitrogen fixation (BNF) through association with native rhizobia inhabiting nodule microbiome provides most of the nitrogen independence on fertilizers. Soil microbial communities which are influenced by biogeographical factors and soil properties, represent a source of rhizobacteria capable of stimulating plant growth. The objective of this study is to support selection of beneficial bacteria that form positive interactions with mung bean plants cultivated in tropical soils, as part of a seed inoculation program for increasing grain yield based on the BNF and other mechanisms. Two mung bean genotypes (Camaleão and Esmeralda) were cultivated in 10 soil samples. Nodule microbiome was characterized by next-generation sequencing using Illumina MiSeq 16S rRNA. More than 99% of nodule sequences showed similarity with Bradyrhizobium genus, the only rhizobial present in nodules in our study. Higher bacterial diversity of soil samples collected in agribusiness areas (MW_MT-I, II or III) was associated with Esmeralda genotype, while an organic agroecosystem soil sample (SE_RJ-V) showed the highest bacterial diversity independent of genotype. Furthermore, OTUs close to Bradyrhizobium elkanii have dominated in all soil samples, except in the sample from the organic agroecosystem, where just B. japonicum was present. Bacterial community of mung bean nodules is mainly influenced by soil pH, K, Ca, and P. Besides a difference on nodule colonization by OTU sequences close to the Pseudomonas genus regarding the two genotypes was detected too. Although representing a small rate, around 0.1% of the total, Pseudomonas OTUs were only retrieved from nodules of Esmeralda genotype, suggesting a different trait regarding specificity between macro- and micro-symbionts. The microbiome analysis will guide the next steps in the development of an inoculant for mung bean aiming to promote plant growth and grain yield, composed either by an efficient Bradyrhizobium strain on its own or co-inoculated with a Pseudomonas strain. Considering the results achieved, the assessment of microbial ecology parameters is a potent coadjuvant capable to accelerate the inoculant development process and to improve the benefits to the crop by soil microorganisms.

Screening Cowpea Genotypes for High Biological Nitrogen Fixation and Grain Yield under Drought Conditions

2018 ◽  
Vol 110 (5) ◽  
pp. 1925-1935
Author(s):  
Lawrence Munjonji ◽  
Kingsley K. Ayisi ◽  
Geert Haesaert ◽  
Pascal Boeckx
Keyword(s):  
Nitrogen Fixation ◽  
Grain Yield ◽  
Biological Nitrogen Fixation ◽  
Drought Conditions ◽  
Biological Nitrogen

scholarly journals Technical and economic viability of co-inoculation with Azospirillum brasilense in soybean cultivars in the Cerrado

2018 ◽  
Vol 22 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Fernando S. Galindo ◽  
Marcelo C. M. Teixeira Filho ◽  
Salatier Buzetti ◽  
Mariana G. Z. Ludkiewicz ◽  
Poliana A. L. Rosa ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Grain Yield ◽  
Biological Nitrogen Fixation ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Economic Viability ◽  
No Tillage ◽  
Randomized Block Design ◽  
Tillage System ◽  
Biological Nitrogen

ABSTRACT Biological nitrogen fixation (BNF) efficiency can be increased by co-inoculation with bradyrhizobia and Azospirillum brasilense, allowing even greater uptake of water and nutrients, leading to higher yields. Thus, this study aimed to evaluate the technical and economic viability of soybean in the Cerrado, according to the cultivars and co-inoculation with Azospirillum brasilense. The experiment was conducted in Selvíria, MS, in no-tillage system, in Oxisol, arranged in a randomized block design in a 2 x 2 factorial scheme with two cultivars (‘Potência’ and ‘Valiosa’), with and without co-inoculation with Azospirillum brasilense in the seed. Co-inoculation with A. brasilense increases grain yield in the cultivars ‘Potência’ and ‘Valiosa’, being economically viable. However, using the cultivar ‘Potência’ co-inoculated led to the highest profitability.

Phosphorus-Rhizobium interaction studies on biological nitrogen fixation and yield of lentil

1988 ◽  
Vol 110 (1) ◽  
pp. 141-144 ◽  
Author(s):  
K. K. Dhingra ◽  
H. S. Sekhon ◽  
P. S. Sandhu ◽  
S. C. Bhandari
Keyword(s):  
Nitrogen Fixation ◽  
Grain Yield ◽  
Biological Nitrogen Fixation ◽  
Field Experiments ◽  
Nitrogenase Activity ◽  
Root Nodules ◽  
Dry Weight ◽  
Biological Nitrogen ◽  
Phosphorus Application ◽  
Intact Root

SummaryField experiments were conducted at the Punjab Agricultural University, Ludhiana from 1980–1 to 1984–5 to study the response of lentil genotypes to phosphorus application and Rhizobium inoculation. The number and dry weight of nodules increased consistently with increasing rates of application of phosphorus from 0 to 60 kg P2O5/ha. Nitrogenase activity of intact root nodules increased from 17 530 to 22 390 nmol/h per g dry weight of nodules with 20 kg P2O6/ha and to 27391 and 29170 nmol/h per g with 40 and 60 kg P2O5/ha, respectively. Rhizobium inoculation also increased nodulation, nitrogenase activity and grain yield. Interaction between phosphorus and Rhizobium inoculation was significant in 3 out of 5 years, indicating that the combination of Rhizobium and 20 kg P2O6/ha gave yield equivalent to 40 kg P2O6/ha without Rhizobium.

Biological nitrogen fixation research and technology assessment for Egypt: II. Training, research, and inoculant production

1984 ◽  
Vol 13 (1) ◽  
pp. 24-28
Author(s):  
J. R. Sims ◽  
W. C. Lindemann ◽  
R. S. Smith ◽  
S. H. West ◽  
L. R. Frederick
Keyword(s):  
Nitrogen Fixation ◽  
Technology Assessment ◽  
Biological Nitrogen Fixation ◽  
Training Research ◽  
Biological Nitrogen
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