What are 3 methods that preserve the fertility of topsoil?

Answer 1

Crop Rotation

1. Harvesting the same crops consecutively can lead to toxins that build up in the soil and cause an imbalance in the fertility demands of the soil. These damaging effects can be prevented by growing different crops on the soil in different seasons 3.
2. Till-less Farming
3. Tilling, or plowing the soil, is one way of preparing it for planting. Tilling leads to compacted soil and loss of organic matter that is vital for growth. Simply not tilling the soil prevents this.
4. Proper Soil Irrigation

   • If topsoil is left dry at the surface, it becomes susceptible to erosion by wind. Ensuring that the land is properly irrigated at the surface can prevent this.

Answer 2

1. Crop rotation: Planting different crops in a sequence helps maintain soil fertility by preventing nutrient depletion and reducing the build-up of pests and diseases specific to one crop.
2. Cover cropping: Planting cover crops like legumes or grasses between main crops helps protect and enrich the soil by reducing erosion, improving soil structure, and adding organic matter.
3. Organic farming practices: Avoiding synthetic fertilizers and pesticides, and instead using organic materials like compost and manure, can help preserve soil fertility by promoting biodiversity and improving soil health.