Temporal Modulation of Tomato Microbiome by Volcanic Ash Fertilizer

Research Focus: Investigating the impact of nutrient fertilizers on soil and plant-associated microbial communities, which is crucial for plant growth, stress tolerance, and productivity.
Problem Statement: High variability in agricultural environments makes it challenging to assess fertilizer influences on these microbial communities, hindering the achievement of consistently improved food quality and productivity with minimal environmental impacts.
Solution Tested: A commercially available, surface-mined volcanic ash deposit fertilizer, Azomite, was tested as a supplement to conventional fertilizer programs for greenhouse-grown tomato plants.
Key Findings:
- Azomite application led to a significant increase in fruit production.
- It had a relatively small overall effect on microbial composition but a significant, temporally selective influence on