Which practice is considered a sustainable agricultural technique?

Utilizing perennial crops is recognized as a sustainable agricultural technique because it offers several environmental and economic benefits. Perennial crops are plants that grow back year after year without the need for replanting, which can lead to improved soil health through enhanced root systems that help prevent erosion. These crops also contribute to higher biodiversity as they support various soil organisms and wildlife.

Moreover, perennial crops often require less input in terms of fertilizers and water compared to annual crops, as they develop deeper roots that can access moisture and nutrients more efficiently. This can lead to reduced runoff and nutrient leaching, which are significant contributors to water pollution. Furthermore, the long-term growth cycle of perennials allows for better carbon sequestration, playing a role in mitigating climate change.

In contrast, practices such as excessive tillage and dependence on chemical fertilizers can degrade soil health, reduce biodiversity, and increase environmental risks, highlighting the benefits and alignment of perennial crops with sustainable agriculture objectives.