Companion planting is a horticultural technique

Position 1: Such interdependencies demonstrate that thoughtful spatial arrangement of crops can reduce the need for synthetic fertilisers and physical weed control.

Position 2: Perhaps the most cited example is the traditional Indigenous combination of maize, beans, and squash, collectively known as the Three Sisters.

Position 3: The beans, in turn, fix atmospheric nitrogen into the soil through their root nodules, naturally enriching the growing medium for all three plants.

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

Position 5: In this arrangement, the maize provides a vertical structure for the bean vines to climb, while the squash's broad leaves suppress competing weeds below.