Companion planting is a horticultural technique

Position 1: As a result, companion planting has gained renewed attention among sustainable agriculture researchers seeking to optimise yield without intensifying chemical inputs.

Position 2: Certain combinations exploit biochemical interactions, such as the ability of marigolds to release root exudates that repel nematodes damaging to neighbouring vegetables.

Position 3: These relationships reduce the gardener's reliance on synthetic pesticides and artificial shading structures, lowering both cost and environmental impact.

Position 4: Companion planting is a horticultural technique in which different plant species are cultivated in close proximity to mutual benefit.

Position 5: Other pairings are based on structural complementarity, as when tall sunflowers provide partial shade for low-growing lettuces prone to bolting in intense heat.