Evaluation of the Effect of Funneliformis mosseae Inoculation on Agronomic Parameters of Maize (Zea mays L.) under a Substrate Subjected to Gold Mining

Aim: Evaluate, in a greenhouse, the effect of the AMF, Funneliformis mosseae, on the agronomic performance of maize grown on soil degraded by gold mining.

Study Design: Completely Randomized Design (CRD) with six replications.

Place and Duration of Study: University of Lomé, between September 2022 and January 2023.

Methodology: The experiment utilized four treatment levels - pure mineral fertilizers (To), pure AMF (Funneliformis mosseae) (T1), the combination of AMF and mineral fertilizers (T2) and a control (Co) – employing a Completely Randomized Design (CRD) with six replications. A pot of 5 liters capacity having received 5 kg of soil substrat (washed gold-bearing soil or soil taken under natural vegetation) composed the experimental unit. The experimental data were collected and analyzed.

Results: gold-bearing soils are sandy and poor in organic and mineral compounds compared to soils under natural vegetation. The mycorrhization parameters do not take soil type into account. On average, 73.62 % of plants in simple inoculation were mycorrhized where as 33.43 % of plants were mycorrhized in inoculation with a synthetic fertilizer (NPK+Urea) at 60 days after sowing. The respective mycorrhization intensities corresponding to these mycorrhization rates are 41.43 and 45.67 % for the same period. The inoculation with AMF affect positively the growth, development and the productivity of maize compared to the control.

Conclusion: Results suggest that Funneliformis mosseae can be used as a biofertilizer on gold mining soils in Togo for sustainable maize production.