Test: Soil Fertility - JAMB MCQ

Compaction of soil reduces pore space, limiting the movement of air, water, and nutrients, thus negatively impacting soil fertility.

Leaching is the process of water carrying away nutrients from the topsoil, leading to the erosion of essential elements necessary for soil fertility.

Repeated cropping with one variety depletes specific nutrients required by that particular crop, leading to soil fertility decline.

Poly-cropping involves growing multiple crop varieties together, which helps in minimizing soil erosion and nutrient depletion.

Terracing involves creating steps or level platforms on slopes to control the flow of water downhill, reducing soil erosion and maintaining soil fertility.

Mulching involves covering the soil surface with materials like straw, leaves, or plastic to protect it from erosion, conserve moisture, and enhance soil fertility.

Crop rotation involves planting different crops in a specific sequence in the same field, helping to maintain soil fertility and reduce the risk of pests and diseases.

Organic fertilizers are derived from natural sources and contain organic matter, providing essential nutrients to the soil and improving its fertility.

Contour ridging involves creating ridges along the contours of the land, which helps to slow down water flow, reduce soil erosion, and retain soil moisture.

Shifting cultivation is a farming practice where new areas of land are cleared and cultivated, while the previous ones are left fallow to regain their fertility.