What factors influence soil fertility in agriculture?

JAMB Agricultural Science 2023 283 views
Source: JAMB · 2023

What factors influence soil fertility in agriculture?

  1. Organic matter content and nutrient availability.
  2. pH and soil structure.
  3. Soil texture and drainage.
  4. All of the above. ✓
Explanation

Soil fertility depends on: nutrient content (N, P, K and micronutrients), organic matter level, pH, soil organisms, and physical properties affecting root growth.

Factors reducing fertility: continuous cropping without replenishment, erosion, leaching, and soil degradation. Factors improving fertility: manure, compost, fertilizers, legume rotation, and mulching.

Sustainable fertility management replaces what crops remove, maintains organic matter, and protects soil structure. This ensures productivity for future generations.

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