Read the passage below carefully:
In recent years, the revival of traditional soil conservation techniques across the Jos Plateau has significantly mitigated erosion while enhancing crop yields. Smallholder farmers have reintroduced stone bunding and contour ridging—ancient methods that slow down surface runoff during intense seasonal rainfalls. Although modern chemical fertilizers were long promoted as the ultimate fix for declining soil productivity, they proved financially burdensome and ineffective at halting topsoil loss. Consequently, community-driven ecological restoration, rather than synthetic agricultural inputs, serves as the primary driver of sustained agricultural productivity in the region.
Statement: Synthetic agricultural inputs serve as the primary driver of sustained agricultural productivity on the Jos Plateau.
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