Enhancement of Nitrogen Fixation, Growth, and Productivity of Bradyrhizobium-Lupin Symbiosis via Co-Inoculation With Rhizobacteria in Different Soil Types

Egypt, during two successive growth summer seasons, i.e. 2016 and 2017 on peanut (Arachis hypogaea L.) Giza 5 cv., to study the individual and combined effect of applications of mineral N fertilization levels (25 and 40 kg N / fed., ammonium sulphate, 20.3 % N).Four resources of organic fertilizers (farmyard manure "FYM" , solid plant compost "SPC" , enriched compost tea "ECT" and FYM+ECT) and two different mixtures of biofertilizers (B 1 and B 2 ) on nodulation efficiency and growth of peanut plants. B 1 consists of Azospirillum braselinse (local strain) + Bacillus megatherium (local strain) + Azotobacter chroococcum (local strain); while B 2 consists of Bradyrhizobium.sp ( strain (USDA 3456)) + Serratia marcescens ( strain MH6) + Psuedomonas fluorescens (strain IFO 2034). Application rate of SPC, FYM were 5 ton / fed., while ECT was 75 L/fed (fed is 0.42 ha). The treatment of FYM+ECT was carried out at a rate of 2.5 ton FYM / fed. + 37.5 L ECT/ fed. The layout of the experiment was a splitsplit-plot design, with the main plots arranged in a randomized complete blocks design, with three replicates. The results showed that, a marked significant increases in both nodules (number and dry matter) formed on the roots of peanut plants as well as the dry matter of shoots of peanut plants owing to the used fertilization treatments as compared to the control. The highest values of nodulation (number and weight) and shoots dry weights were found in the plants fertilized by triple combinations of mineral N, organic and biofertilizers followed by those found duo to the dual combinations. Data also showed a superior increase of applied B 2 and addition of ECT than that obtained for B 1 and either of than other organic fertilizers on nodules number as shoots dry weight of peanut plants at growth period of 45 days. Generally, data showed an importance role of mineral N and bio-fertilizers application on sandy soil fertility of sandy soil treated with organic fertilizers and its productivity of peanut plants.

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Co-inoculation of Bradyrhizobium and Phosphate Solubilizing Microbes on Growth Promotion of Groundnut Under Rain-fed Conditions

Ijaz

Ijaz²,

Javed

et al. 2023

joarps

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Plant growth-promoting bacteria (PGPB) can improve plant development and protect plants from diseases and abiotic stresses. Plant-bacterial interactions in the rhizosphere are important factors in soil fertility and plant health. Symbiotic nitrogen-fixing bacteria include the cyanobacteria of the genera Rhizobium, Bradyrhizobium, Azorhizobium, Allorhizobium, Sinorhizobium and Mesorhizobium. Therefore, to investigate the effect of co-inoculation of Bradyrhizobium and phosphate solubilizing microbes (PSM) on groundnut crop under field conditions using normal soil, divided into eight different study groups i.e., control (T1), Bradyrhizobium isolate -1 (T2), Bradyrhizobium isolate -2 (T3), Bradyrhizobium isolate -3(T4), Phosphate solubilizing microbe (PSM) (T5), T2 + PSM (T6), T3 + PSM (T7), T4 + PSM (T8). The results showed maximum groundnut pod yield (2428 kg ha-1) was obtained in treatment where inoculation with bacterial isolate-2 applied as compared to control. In case of plant height and shoot dry biomass, maximum response was observed in T7 (59.4 cm, 4733 kg ha-1) as compared to control i.e., 40.5 cm, 3156.7 kg ha-1 respectively. It was concluded that this technique might be useful and applicable to cut down the high input cost of phosphate fertilizers for the production of other crops also

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Enhancement of Nitrogen Fixation, Growth, and Productivity of Bradyrhizobium-Lupin Symbiosis via Co-Inoculation With Rhizobacteria in Different Soil Types

Abstract: The current investigation was conducted in two different soil types (sandy and clay loam) at

Cited by 3 publications

References 18 publications

Seed Yield and Fatty Acids Composition of Peanut ( Arachis hypogaea L.) Under Magnesium, Molybdenum and Bio-Fertilizers Application in Different Planting Densities

Seed Yield and Fatty Acids Composition of Peanut ( Arachis hypogaea L.) Under Magnesium, Molybdenum and Bio-Fertilizers Application in Different Planting Densities

Effect of Mineral Nitrogen and Biofertilizer Application on Nodulation Efficiency and Growth of Peanut Plants Grown on a Sandy Soil Treated With Organic Fertilizers

Co-inoculation of Bradyrhizobium and Phosphate Solubilizing Microbes on Growth Promotion of Groundnut Under Rain-fed Conditions

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