Drainage is the artificial removal of excess water from the soil.
ADVANTAGES:
1. Soil aeration is increased
2. Some pests and diseases are controlled
3. Water logging is controlled
4. Agricultural products are enhanced
METHODS OF DRAINAGE:
There are two major methods, namely:
1. SURFACE DRAINAGE: this is done by sucking away the water from the surface.
2. UNDERGROUND DRAINAGE: this is done through hollow cylinders made of
concrete of perforated pipes. Excess water is collected underground
and directed away from the farm.
