Influence of Rhizobacteria Inoculant Application Methods and Phosphate Fertilizer Rates on Dry Matter Accumulation, Yield of Bambara Groundnut [Vigna subterranea (L.) Verdc] and Soil Total Nitrogen Content in a Degraded Ultisol in Southeast Nigeria

Ee, Ikenganyia; Man, Anikwe; Oe, Ngwu

doi:10.4172/2168-9881.1000165

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…This result suggests that the use of either P fertilizer or rhizobium inoculant is very important for groundnut production. This finding is in agreement with earlier observations made by Ikenganyia et al (2017) that phosphorus and rhizobium inoculant impact positively on grain yield.…”

Section: Discussionsupporting

confidence: 94%

Yield response and economic benefits of groundnut to phosphorus fertilization and inoculant rates in Northern Ghana

Naabe¹,

Berdjour²,

Odoom³

et al. 2021

Afr. J. Agric. Res.

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Groundnut (Arachis hypogea L.) is a major source of dietary protein, cultivated for both human and animal consumption. However, in West Africa, the yields are low, renewing the interest to evaluate groundnut response to P fertilizer (P) and rhizobium inoculant (IR) application. A study was conducted on the experimental field of the University for Development Studies, Nyankpala in the Northern region of Ghana to evaluate the interactive effect of three P rates (0, 30 and 60 kg P 2 O 5 /ha) and three IR rates (0, 3 and 6 g/kg seed) on groundnut yield and to assess the economic viability of these technologies to farmers. The study was conducted using a 3 × 3 factorial laid out in a randomized complete block design with three replications. Nodule count and pod number per plant were significantly affected by P fertilizer rates (PR) and rhizobium inoculant rates (IR) interaction. The effects of PR and IR significantly increased grain yield of groundnut, with 60 kg P 2 O 5 /ha and 6g inoculant/kg seed recording the highest grain yield of 2708.3 and 2376.6 kg/ha respectively. Correlation analysis suggested that major determinants of groundnut grain yield were nodule count, effective nodule count, pod number and pod weight. Gross benefits were higher in treatment with P fertilizer and/or inoculant application. Estimated B/C ratios also indicated that, compared to the control, all the treatments are attractive. Therefore, cultivating groundnut by using P fertilizer and/or inoculant may provide the most economically viable and low-risk options for increasing groundnut yield in northern Ghana.

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Section: Discussionsupporting

confidence: 94%

Yield response and economic benefits of groundnut to phosphorus fertilization and inoculant rates in Northern Ghana

Naabe¹,

Berdjour²,

Odoom³

et al. 2021

Afr. J. Agric. Res.

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Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth

et al. 2022

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After peanuts and cowpeas (Vigna unguiculata), the Bambara groundnut (Vigna subterranea (L.) Verdc) is the third most significant food legume in Africa. It is characteristically grown in marginal soils, is drought tolerant, and also has the potential for nitrogen fixation. Despite that, year-on-year Bambara groundnut yields are on a gradual decline due to a combination of abiotic and biotic stresses such as uneven annual rainfall and climate-induced changes in soil microbial community compositions, negatively impacting food security. Thus, the application of rhizobial inoculants at planting significantly improves yields in many leguminous crops. Moreover, symbiotic inoculants are well established in developed countries for improving nitrogen fixation and productivity in grain legumes. Sub-Saharan African countries, however, still under-utilise the above practice. In crop production, nitrogen (N) is the most frequently deficient nutrient since it stimulates root and shoots growth. Whereas nitrogen fertilisers can be used to supplement soil N levels, they are, however, also costly, at times inadequate, may not be timely in supply and may have deleterious environmental consequences. Hence, rhizobial inoculants are seen as a cheaper, easier, and safer method for improving N-fixation and crop productivity in grain legumes, as a result, smallholder farming systems are food secure. Thus, identifying the most efficient rhizobial strains for biofertiliser production for Bambara groundnut is of utmost importance to the farming communities.

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Influence of Rhizobacteria Inoculant Application Methods and Phosphate Fertilizer Rates on Dry Matter Accumulation, Yield of Bambara Groundnut [Vigna subterranea (L.) Verdc] and Soil Total Nitrogen Content in a Degraded Ultisol in Southeast Nigeria

Cited by 2 publications

References 18 publications

Yield response and economic benefits of groundnut to phosphorus fertilization and inoculant rates in Northern Ghana

Yield response and economic benefits of groundnut to phosphorus fertilization and inoculant rates in Northern Ghana

Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth

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