Read the passage below carefully:
The Mambilla Plateau in Taraba State, renowned for its extensive tea plantations, faces unprecedented soil erosion driven by escalating rainfall intensity. Traditionally, tea farmers relied on chemical fertilizers to maintain crop yields on depleted topsoil, but this approach failed to stop severe nutrient runoff and degraded long-term soil structure. Recently, agricultural researchers introduced an organic mulching technique using locally sourced vetiver grass and crop residues. This sustainable practice creates a protective surface barrier that significantly reduces water runoff, retains essential soil moisture, and restores natural soil fertility. Consequently, smallholder tea farmers are observing improved crop resilience and higher leaf yields without environmental degradation.
Which of the following options best synthesizes the central argument of the passage?
- AChemical fertilizers were traditionally used by tea farmers on the Mambilla Plateau to offset severe topsoil nutrient depletion.
- The implementation of organic mulching on Mambilla tea plantations effectively mitigates soil erosion and enhances yields sustainably.Cevap
- CMambilla tea farmers will soon completely eliminate all synthetic inputs across the entire Nigerian agricultural sector.
- DEscalating rainfall intensity on the Mambilla Plateau was caused by tea farmers introducing vetiver grass mulching techniques.