Importance of Molybdenum and Cobalt to the Biological Nitrogen Fixation

Campo, R. J.; Albino, Ulisses Brigatto; Hungría, Mariangela

doi:10.1007/0-306-47615-0_338

Cited by 14 publications

(21 citation statements)

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“…Since the indigenous rhizobia are present through the soil while the introduced rhizobia are only present on the seed coat, there is the competitive advantage of the native rhizobia over the introduced strain (Denton et al, 2002). Several reports have also indicated no improvement or toxicity from Mo seed-coating through suppressive effects of salts used as Mo sources on Bradyrhizobium affecting bacterial survivability and nodulation [4,12].…”

Section: Discussionmentioning

confidence: 99%

“…This is in confirmation with a multi-locational trial conducted by [29] at farmers' fields in Bangladesh, which showed that, the efficiency of seed treatment with Mo may be further enhanced by adding rhizobium as yield increases were 37% -90% over the untreated control. According to [12], Mo in legumes serves as an additional function to help root nodule bacteria to fix atmospheric N resulting in increased yield which account for over 200% increase in grain yield. Legumefix, a rhizobia inoculant helps to boosts the natural population of beneficial nitrogen-fixing bacteria to form effective nodules that are responsible for effective BNF [15] and explains the over 100% increase in grain yield compared to the control.…”

Section: Discussionmentioning

confidence: 99%

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Response of Soybean (Glycine max L.) to Rhizobia Inoculation and Molybdenum Application in the Northern Savannah Zones of Ghana

Asei¹

2015

JPS

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Abstract:Compatible rhizobia populations are seldom available in soils where soybean has not been grown before.Inoculating soybean seeds with superior rhizobia strains is necessary for nodulation and nitrogen fixation. Ironically, many commercial agricultural products (biological and chemical) claim increases in crop productivity but their efficacy cannot be guaranteed. Thus, three separate on-station trials (Manga, Kpongu and Nyankpala) were conducted at the experimental fields of CSIR-Savannah Agricultural Research Institute (SARI), to ascertain the effectiveness of some commercial microbial inoculant and micronutrient fertilizer for improvement of soybean productivity in the Northern savannah zones of Ghana. Four treatments were used for each study site; Control, Teprosyn Mo, Legumefix and Teprosyn Mo+Legumefix which were laid out in a Randomised Complete Block Design (RCBD) with three replications. Experimental plots measured 4.5 m x 4.5 m. A significant (P < 0.05) response of soybean nodule dry weight to Legumefix was observed in Kpongu and Manga but not Nyankpala. At harvest, Teprosyn Mo+Legumefix, Legumefix and Teprosyn Mo treatments increased soybean grain yield by 205.62%, 135.54% and 110.24% respectively over the control in Manga. In Nyankpala, the application of Legumefix and Teprosyn Mo+Legumefix increased soybean grain yield significantly by 22.43% and 42.10% respectively relative to the control while no significant response was observed in grain yield among treatments at Kpongu. The combined application of Teprosyn Mo+Legumefix was the most economically viable among the treatments (VCR = 2.65).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Response of Soybean (Glycine max L.) to Rhizobia Inoculation and Molybdenum Application in the Northern Savannah Zones of Ghana

Asei¹

2015

JPS

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“…While, boron plays an important role in flower retention, pollen tube growth, seed formation and seed setting and mainly involved in translocation of metabolites from source to sink (Tanaka and Fujiwar, 2008). Whereas, molybdenum in legumes, helps root nodule to fix atmospheric nitrogen (Campo et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Influence of seed polymer coating with micronutrients and foliar spray on seed yield of chickpea (Cicer arietinum L.)

Shinde

Doddagoudar

Vasudevan³

2016

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A field experiment was conducted at the Department of Seed Science and Technology, College of Agriculture, University of Agricultural Sciences, Raichur to study the influence of seed polymer coating with micronutrients and foliar spray on seed yield of chickpea. The experiment consisted of seventeen different seed polymer coating and foliar spray treatments with various combinations of ZnSO 4 , boron, ammonium molybdate, FeSO 4 including control. Among the different treatments imposed, seed polymer coating ( @ 6 ml/kg) of chickpea seeds with the combination of ZnSO 4 + Boron + Ammonium molybdate + FeSO 4 (each @ 2 g/kg) of seed along with two foliar sprays (0.5 % + 0.2 % + 0.1 % + 0.5 %, respectively, ZnSO 4 and FeSO 4 in EDTA form) at an interval of 10 days during flowering stage (50 and 60 DAS) recorded significantly higher leaf area index, chlorophyll content, plant height, effective root nodules plant -1 , pods plant -1 , seed yield compared to all other treatments and control.

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“…In an important research by Campos et al [13], they concluded that there are no Mo and Co effects on nodulation in soil with established Bradyrhizobium population, soil application of Mo and Co does not supply the Mo and Co necessary to the plant and to the BNF, application of Mo and especially that of Mo and Co increase BNF, as in the present study, application of Mo and Co on leaves has the same effect on BNF as seed applications, as in the present study, and seeds with high concentration of Mo show higher BNF than those with low Mo contents, as in the present study. Also, Hungria et al [37] reported increases in grains yield of soybean (20%) by application of Mo and Co associated with Bradyrhizobium compared to treatment inoculated with Bradyrhizobium.…”

Section: ---------------------------Mg Kg -1 ---------------------------mentioning

confidence: 99%

“…The first B12 vitamin is essential for the processing of BNF and other parts of the molybdoenzymes, used in absorption and metabolism of nitrogen [12]. The application of Mo and especially Mo + Co increases BNF [13].…”

Section: Introductionmentioning

confidence: 99%

Inoculation with Bradyrhizobium sp. and Azospirillum brasilense Associated with Application of Cobalt and Molybdenum on Nutrition and Soybean Yield

Filho¹,

ShintateGalindo²,

Buzetti³

et al. 2017

Soybean - The Basis of Yield, Biomass and Productivity

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Considering the main current limitations and potential of biological fixation of N 2 (BNF) in soybean crop and benefits attributed to various crops by inoculation with Azospirillum brasilense (diazotrophic bacteria with free life), with emphasis on larger development of the root system and consequently greater absorption of water and nutrients, we can infer that co-inoculation with both microorganisms of Bradyrhizobium sp. and A. brasilense can improve the crop performance in an approach that meets the current demands of agricultural, economic, and environmental sustainability. Thus, important researches are needed to evaluate the nutritional status, production components, and the soybean yield affected by cobalt and molybdenum application mode and co-inoculating seeds with bradyrhizobia and A. brasilense. We found that seed inoculated with A. brasilense and application of cobalt and molybdenum provided higher N concentration in leaf and mass of 100 grains, with a positive impact on the grain yield of soybean, with an increase of 1007 kg ha -1 of grain, equivalent to 18.4% more than the control (only inoculated with rhizobia). This research demonstrated that co-inoculation with Bradyrhizobium sp. and A. brasilense associated with the application of cobalt and molybdenum is beneficial for nutrition and soybean yields.

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Importance of Molybdenum and Cobalt to the Biological Nitrogen Fixation

Cited by 14 publications

References 1 publication

Response of Soybean (Glycine max L.) to Rhizobia Inoculation and Molybdenum Application in the Northern Savannah Zones of Ghana

Response of Soybean (Glycine max L.) to Rhizobia Inoculation and Molybdenum Application in the Northern Savannah Zones of Ghana

Influence of seed polymer coating with micronutrients and foliar spray on seed yield of chickpea (Cicer arietinum L.)

Inoculation with Bradyrhizobium sp. and Azospirillum brasilense Associated with Application of Cobalt and Molybdenum on Nutrition and Soybean Yield

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