companion-planting
Companion planting is the agricultural practice of cultivating specific plant combinations to enhance growth, pest management, and soil health through ecological interactions. This approach holds significant value for plant science as it reveals the complex biochemical and ecological relationships between plant species, including allelopathy, nutrient cycling, and predator-prey dynamics. Understanding these synergistic interactions advances sustainable agriculture and demonstrates how plant communities can optimize their own productivity through evolutionary partnerships.
open_in_new WikipediaPubMed · 2026-02-26
Planting marigolds alongside tomatoes cuts harmful soil nematode populations by 67% and boosts tomato yields by 18%, offering a simple, chemical-free pest control strategy for organic growers.
Intercropping marigolds with tomatoes reduced root-knot nematode populations by 67%
Tomato yields improved by 18% compared to monoculture (tomatoes grown alone) controls
Alpha-terthienyl, a compound released from marigold roots, was identified as the primary nematode-killing agent
