Tomato production requires adequate nutrient availability to sustain high yield and biomass production, while efficient nutrient acquisition remains important under reduced fertilizer inputs. The integration of AMF and PGPR offers a potential biological approach to improve nutrient acquisition and plant productivity. A field experiment was conducted during Rabi season of 2023-24 and 2024-25 at the Research Farm of the Vegetable Research Centre, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, Maharashtra, India to evaluate the effects of arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) on tomato yield, dry matter production, nutrient concentration and nutrient uptake under different fertilizer levels and methods of microbial application. The experiment comprised twelve treatments arranged in a randomized block design with three replications. Application of 75% RDF + AMF + Pseudomonas fluorescens + Bacillus megaterium + Trichoderma viride through soil application (T₁₂) consistently recorded the highest yield and nutrient accumulation. Pooled analysis showed that T₁₂ produced the maximum fruit yield (376.74 q ha⁻¹) and dry matter yield (46.34 q ha⁻¹). The treatment also recorded the highest N (1.97%), P (0.30%) and K (1.99%) concentrations, with corresponding N, P and K uptake of 91.43, 13.83 and 92.53 kg ha⁻¹, respectively. Compared with 100% RDF, T₁₂ increased fruit yield by 27.27%, demonstrating that the microbial consortium effectively complemented a 25% reduction in mineral fertilizer application. Soil application generally resulted in greater responses than seedling application, indicating more effective establishment and activity of the microbial inoculants in the rhizosphere. The integration of AMF and PGPR with 75% RDF can improve tomato productivity, biomass production and N, P and K accumulation while reducing mineral fertilizer input by 25% under Vertisol conditions.
Nikita D. Pardeshi, R. Khandare, M. N. Ingole et al.· Journal of Scientific Resear...· 0 citations
Beneficial soil microorganisms offer a promising approach for enhancing soil fertility and nutrient availability while improving crop productivity and reducing dependence on mineral fertilisers. A field experiment was conducted during the Rabi season of 2023–24 at the Research Farm of the Vegetable Research Centre, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, Maharashtra, India, to evaluate the effects of arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) on tomato productivity and soil nutrient availability under Vertisol conditions. Twelve treatments comprising 75% of the recommended dose of fertilisers (RDF) in combination with individual or combined microbial inoculants, applied either as a seedling treatment or through soil application, were evaluated in a randomised block design with three replications. The treatment comprising 75% RDF + AMF + Pseudomonas fluorescens + Bacillus megaterium + Trichoderma viride applied through soil application (T₁₂) recorded the highest fruit yield (371.53 q ha⁻¹) and dry matter yield (46.09 q ha⁻¹), representing increases of 25.88 and 37.91% over 100% RDF, respectively. At 95 days after transplanting, T₁₂ also maintained the highest soil available N (204.20 kg ha⁻¹), P (24.90 kg ha⁻¹) and K (798.15 kg ha⁻¹), corresponding to increases of 23.36, 37.49 and 14.73%, respectively, over 100% RDF. The corresponding increases over the absolute control were 46.01, 82.95 and 31.74%. The combined soil-applied consortium consistently produced greater yield and soil nutrient availability than the corresponding seedling application, although the two application methods were statistically comparable for several attributes. Among individual microbial treatments, soil application of AMF was the most effective. The findings demonstrate that AMF–PGPR integration with 75% RDF can improve tomato productivity and maintain higher soil nutrient availability while reducing mineral fertiliser input by 25% under Vertisol conditions.
Nikita D. Pardeshi, R. Khandare, P. Nakhate et al.· Journal of Advances in Biolo...· 0 citations
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