Which change would best aid a farmer in making the transition from conventional farming techniques to more sustainable farming techniques?

Transitioning to more sustainable farming techniques involves practices that enhance soil health, biodiversity, and ecosystem function. Crop rotation stands out as a best practice because it helps maintain soil fertility, prevents pest and disease cycles, and can improve crop yields in the long run.

By rotating different crops, farmers can break cycles of pests and diseases that often occur when the same type of plant is grown continuously in the same soil. This can reduce the need for chemical pesticides and herbicides. Furthermore, different crops contribute varying nutrients to the soil and can improve overall soil structure and health, promoting a more resilient ecosystem. This practice also encourages biodiversity, which is beneficial for pollinators and other beneficial organisms.

In contrast, reducing the ratio of essential elements in fertilizer can lead to nutrient deficiencies in the soil, which may not support healthy crop growth. Irrigating crops using well water can be beneficial, but it depends on the sustainability of the water source and does not directly address the farming practices. Planting only genetically modified crops may enhance certain traits like pest resistance or drought tolerance, but it does not inherently contribute to sustainable practices such as soil health and ecological balance. Hence, crop rotation is a fundamental practice that directly supports a sustainable approach to farming.