1. relating to or caused by rhizobia, nitrogen-fixing bacteria that form nodules on the roots of leguminous plants
Usage: scientific

Examples

• The rhizobial infection improved the soil’s nitrogen content.
• Scientists studied the rhizobial nodules on the soybean roots.
• Rhizobial bacteria form a symbiotic relationship with legumes.
• The farmer relied on rhizobial fixation to enrich the field naturally.
• Researchers isolated several rhizobial strains from clover plants.
• The rhizobial partnership allows beans to grow without nitrogen fertilizer.