Question

Explain five ways of maintaining soil fertility.

Answer 1

1. Control of soil erosion which aim at promoting good rain water retention and reducing the surface runoff.
2. Crop rotation: help to control crop pest and diseases and maximum utilization of soil nutrients.
3. Control of soil pH:Most soil organisms do well at a certain soil Ph.
4. Proper drainage :Done by breaking the hard layers.
5. Weed contol:weed compete with crops for nutrients, space sunlight and moistur
6. Intercropping: when different species of crops yields are normally high.
7. Minimum tillage: overcultivation destroys the soil structure leading to soil erosion.
8. Use of manures-add nutrients to the soil and moderate soil pH
9. use of inorganic fertilizers: add nutrients to the soil

Answer 2

Watering trees