Case Study
Maintenance of Soil Fertility
- Control of soil erosion to enhance soil infiltration onto the soil and reduce surface run off.
- Weed control to prevent competition for nutrients. Water space and light with crops. It also reduces pests and diseases.
iii. Carrying out crop rotation, this helps to control accumulation of crop pests and diseases on the farm. It also helps to ensure maximum utilization of nutrients.
- Use of inorganic fertilizers helps to add nutrients to the soil e.g. CAN, DAP, Urea etc..
- Use of organic manure helps to supply organic matter to the soil.
- Minimum tillage which helps to maintain soil structure and prevent soil erosion.
vii. Intercropping (Mixed cropping) of leguminous and non- leguminous crops fix nutrients and improve fertility.
viii. Proper drainage by breaking hard pans or creation of water channels this ensures proper aeration.
- Control of pH to almost neutral to ensure proper functioning of micro-organisms which help in decomposition of organic matter.
Give ways in which soil nutrients are gained through the following ways.
-Crop rotation,minimum tillage,proper drainage and weed control.