ArticlePloS one2025
Exploring the potential of microbial inoculant to enhance common bean (Phaseolus vulgaris L:) yield via increased root nodulation and soil macro-nutrients.
Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Can Beneficial Microorganisms Reduce Phosphorus Application Rates in Common Bean (Plants (Basel, Switzerland) · 2026Article
- Farming system shapes rhizosphere microbiota and root gene expression in common bean.Frontiers in plant science · 2026Article
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4 authors.
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Abstract
Soil fertility constraints for common bean (Phaseolus vulgaris L.) production are often resolved using chemical fertilizers, but microbial inoculants can be used as a sustainable option/complement. Microbial inoculant formulation was tested on common bean in a randomized-complete-block-design field experiment with eight treatments and four replicates. The treatments included no input(control), chemical fertilizer(NPK), poultry manure(PM), Microbial inoculants(MI), NPK + PM, NPK + MI, PM + MI, and NPK + PM + MI. Microbial inoculant treatment had the highest fertilizer replacement value (proportion of chemical fertilizer that an alternative input can substitute) relative to poultry manure(41.6%) and chemical fertilizer(26.7%). The highest bean yield(3.46 tons ha-1) that was observed in the NPK + PM + MI treatment was significantly (P < 0.001) different from the microbial inoculant treatment(1.71 tons ha-1) and the control(1.42 tons ha-1). The highest 1000-grain weight (494 g) that occurred in NPK + PM + MI inoculant treatment was significantly (P < 0.05) different from the MI(457 g), NPK(448 g), PM(436 g), and control(421 g) treatments. Effective root nodules correlated positively (P < 0.05) with bean yield (r = 0.77) and 1000-grain weight (r = 0.90). Application of NPK + PM + MI had higher nodule number (9) and effectiveness than the control (2). Soil pH (6.6) was significantly (P < 0.05) higher in NPK + PM + MI than MI + PM (6.5), control (5.5) and NPK (5.0). Soil nitrogen and available phosphorus increased significantly (P < 0.05) in NPK + PM + MI 0.25% and 8.68 mg/kg, respectively, than the control(0.13% and 6.31 mg/kg), while higher potassium(2.80 cmol/kg) occurred in NPK than control(1.70 cmol/kg). These findings highlight the potential to explore the ability of bio-inoculant to boost root nodulation, enhance soil macro-nutrients, and modulate soil pH in bean production systems.
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