What is the significance of companion planting?

Companion planting is a gardening strategy that involves growing different plants in proximity for various beneficial effects. The correct statement highlights that companion planting enhances growth, repels pests, and improves yield. This is because certain plants can provide support for one another through various means. For example, some plants may attract beneficial insects that act as natural pest control, while others might release specific chemicals into the soil that promote the growth of neighboring plants. Additionally, the diverse root structures and nutrient needs of companion plants can lead to improved soil health and more efficient use of resources such as water and nutrients, ultimately leading to higher yields.

In contrast, the reduction of soil fertility, increased sunlight exposure, and complete elimination of fertilization do not accurately reflect the practices or benefits associated with companion planting. Companion planting is not aimed at reducing soil fertility; on the contrary, it can actually enhance it through biodiversity. While some plants may shade others, the primary focus of companion planting is not on maximizing sunlight exposure. Lastly, companion planting does not eliminate the need for fertilization entirely, as many plants still require nutrients to thrive, but it can reduce the dependency on synthetic fertilizers by creating a more balanced ecosystem in the garden.