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companion-planting

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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.

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Companion Planting with Tagetes erecta Reduces Nematode Load 67% in Organic Tomato Production

PubMed · 2026-02-26

Planting marigolds alongside tomatoes cuts harmful nematode populations by 67% and boosts tomato yields 18%.

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67% nematode reduction

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18% tomato yield increase

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Alpha-terthienyl as active compound