Survival and nodulation of Bradyrhizobium japonicum strain CJ02 on soybean (Glycine max (L.) Merrill) (cv. Cujut) cultivated on ferrasols (in pots experiment) (original) (raw)
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The use of Bradyrhizobium to enhance growth and yield of soybean in calcareous soil in Uzbekistan
Journal of Plant Growth …, 2004
In this work the effect of inoculation with Bradyrhizobium japonicum S2492 on soybean (Glycine max (L) Merr) growth, nodulation and yield in nitrogen-deficient soil of Uzbekistan was studied. The field experiments were carried out in Tashkent Province of Uzbekistan in a randomized complete block design with four replicates of each treatment. The results revealed positive effects on growth, nodule number and yields of soybean after inoculation with B. japonicum S2492. The yield of soybean varieties was 48% higher for inoculated than for uninoculated plants. The effect of the inoculation was specific for variety but not for growth type. The protein and oil contents of seeds also increased after inoculation. It was concluded that B. japonicum S2492 can be considered as a biofertilizer for increasing the productivity of soybean in nitrogendeficient soils in Uzbekistan.
Influence of Bradyrhizobium and Two Glomus Species on the Growth and Yield of Soybean
Journal of Agricultural Science and Environment, 2009
A screenhouse experiment was conducted to investigate the effect of Bradyrhizobium japonicum on the response of soybean to inoculation with two species of mycorrhiza (Glomus mosseae and Glomus deserticola). The study was carried out in a screenhouse with soybean as test crop. The two species of arbuscular mycorrhiza fungi (AMF) were inoculated to the potted soil with or without B. japonicum. Single super phosphate (SSP) and zero amendment served as conventional and absolute control respectively. The experimental design was randomized complete block with 4 replicates. AMF/Bradyrhizobium interaction increased mycorrhizal fungi root colonization significantly (p = 0.05) by at least 35.9% at early growth stage (3 weeks after planting (WAP)) and 59.5% at later growth stage (9 WAP). G mosseae/Bradyrhizobium interaction significantly increased N and P uptakes by 68.9 and 80.0%, respectively, as well as plant height, number of leaves, number of branches, canopy spread and leaf area between ...
Fems Microbiology Ecology, 1996
Abstract: Mineral microgranules, amended with nutrients and inoculated with either peat or liquid Bradyrhizobium japonicum inoculants, increased the growth and recovery of the bacterium during laboratory incubation in unsterilized soil. Increases in the range of 1 log unit per g or ml inoculant used were observed in different soil types. B. japonicum showed better survival with nutrient-amended granules than in unamended ones, in soil undergoing desiccation. In a growth chamber experiment, the number of nodules per plant were significantly increased by nutrient-amendment of the granules, but only under suboptimal conditions for nodulation. Nutrient-amended granules significantly enhanced early nodulation of soybean and increased N content of the grain at harvest in four field trials. All these effects were obtained using an average of 10 kg granules amended with 1.14 kg glycerol and 0.16 kg sodium glutamate per hectare. The possible use of nutrient-amended granules to improve efficacy and reliability of microbial inoculation is discussed.
COMPOSITION OF STRAINS BRADYRHIZOBIUM JAPONICUM AND ITS USE FOR SOYBEAN INOCULATION
In the vegetation experiment conditions it was established that the greatest effect of soybean bacterization can be obtained by two strains of nodule bacteria with slow (Bradyrhizobium japonicum 46) and intensive (B. japonicum КВ11) growth rates when these strains used in inocu-lum in the ratio 1 : 1 (binary composition). In compared to the mono-inoculation the combined use of these strains contributed the formation of balanced symbiotic system, increase the level of molecular nitrogen fixation, content of chlorophyll in the biomass leaves and above ground mass of different soybean plants varieties on 7.8–19.6 %. In a field experiment inoculation of soybean seeds with a composition of B. japonicum strains to increase the soybean yields by 11.1–13.7 % compared to the mono-inoculation.
American Journal of Agricultural and Biological Sciences , 2019
This study was conducted on acidic soils in two different agro-ecological zones in order to evaluate the influence of Bradyrhizobium japonicum on soil chemical properties in the Upper-Katanga (DR Congo). A split plot design with three replicates was installed in two sites. The main plots included three strains of Bradyrhizobium japonicum plus the untreated control and four soybean varieties in subplots. Seed inoculation was performed in the shade and sown on the same day. The results showed that Bradyrhizobium strains did not influence soil pH, Nitrogen, C: N ratio and organic matter neither at flowering nor at harvest. However, total and available phosphorus (P) were influenced by the different treatments at harvest in Kanyameshi site. The strain S1 induced the highest average of total and available P whereas, the strain S2 had the lowest value of total P, and S3 induced the lowest content in available P. By comparing the timing of soil sampling at flowering and harvesting, the Student test revealed significant differences in pH, total nitrogen, C: N ratio, organic matter and available P indicating that soil chemical properties was improved at harvest and are only partially influenced by applied Bradyrhizobium strains.
Biology and fertility of soils, 2004
This research reports the effect of Bradyrhizobium spp strains on dry matter yield, nodulation and seed yield of soybean varieties grown in N-deficient soil in Uzbekistan in pot and field experiments, in 2001 and 2002. The results of experiments revealed that significant positive effects on growth, nodule number and yield of soybean were obtained after inoculation with Bradyrhizobium spp strains; and, generally, strains S62 and S63 were more effective than strain S61. The protein content of seeds also increased after inoculation. Both Orzu and Uzb2 soybean varieties gave a higher response than the Uzb6 variety.
Australian Journal of Basic and Applied Sciences, 5(7): 793-799, 2011
Field experiments were carried out at Shambat, Sudan (Latitude 15º 40´N and Longitude 32º 32´E) in three consecutive seasons (2000/03) to investigate the effect of Bradyrhizobium inoculation and chicken manure or sulphur fertilization on growth, nodulation and yield of soybean. The results showed that inoculation, chicken manure, sulphur and their interaction significantly (P=0.05) improved the dry weight of shoots and roots, nodulation, yield and yield components. Measured parameters increased by with increasing the level of chicken manure or sulphur and the highest value of each parameter above were observed with either 10 t/fed chicken manure or 100 kg/fed sulphur with or without Bradyrhizobium inoculation. The residual effect of chicken manure or sulphur significantly (P=0.05) improved all the measured parameters at 10 t/fed chicken manure or 100 kg/fed sulphur with or without Bradyrhizobium inoculation.
Effect of Bradyrhizobium Inoculants on the Growth and Yield of Soybean Varieties PB-1 and G-2
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The experiment was conducted at the Soil Science farm of Bangladesh Agricultural University (BAU) Mymensingh during the period from January to May 2000. The experimental soil was Sonatala silt loam, a member of hyperthermic aeric haplaquept. The experiment was laid out in a factorial experiment in Randomized Complete Block Design (RCBD) with three replications. Each replication was represented by a block which was divided into 7 plots. The total numbers of plots were 42 and the size of each plot was 4m × 2.5m. The crop used in this study was soybean (Glycine max L. Merr.). The varieties of the crop was PB-1 (Shohag) and G-2. The study comprised of the seven Bradyrhizobium inoculant treatments such as T 1 : Uninoculated, T 2 : BINA-SB-1906, T 3 : BINA-SB-J43, T 4 : BINA-SB-3407, T 5 : BINA-SB-J11, T 6 : BINA-SB-102 and T 7 : BINA-SB-J2. Treatments were randomly distributed within the blocks. The overall results of the field experiment showed that Bradyrhizobium inoculation was beneficial in nodulation, plant fresh weight, dry matter production, plant height, seed yield and hay yield of soybean varieties PB-1 and G-2. The G-2 variety of soybean and bradyrhizobial inoculant BINA-SB-102 gave better results than other variety and other inoculants, respectively. Use of Bradyrhizobium inoculants appear to be an effective method for successful soybean production, which may also improve the soil health saving of costly synthetic chemical fertilizer and keep the soil and environment free from pollution.
Semina: Ciências Agrárias, 2017
Given the high costs of agricultural production, especially due to the price of fertilisers, particularly nitrogen, the use of inoculants to supply nitrogen to soybean crops is a widely recommended practice. The objective of this study was to evaluate the feasibility of applying inoculants through seed and planting furrow in soil previously cultivated with soybean and Brazilian native “cerrado” biome soil under greenhouse conditions. Seven treatments were tested: 1) inoculation via seed (inoculant + fungicide + micronutrient), 2) treatment via seed (fungicide + micronutrient), 3) control (only seed), 4) inoculation via furrow-dose 1 (recommended dose), 5) inoculation via furrow-dose 2 (twice the recommended dose), 6) inoculation via furrow-dose 3 (three times the recommended dose) and 7) inoculation via furrow-dose 1 + seed inoculation. We evaluated plant height, fresh and dry matter weight of the aerial part and nodules, number of total, viable and non-viable nodules, number of pod...