Back to: O level agriculture notes uganda
Wind is defined as moving air. Wind normally blows or moves from centre of high pressure to centres of low pressure.
Importance of wind
Positive effects
It helps in seed dispersal.
It is an agent of pollination (wind pollination)
It helps in the formation of rainfall and its distribution.
It helps in drying crops.
It drives wind mills used in processing agricultural produce.
It is used as a source of power to pump water on the farm.
Negative effects
It destroys farm structures
It results into erosion (wind erosion)
It destroys crops.
It promotes high rate of transpiration leading to wilting.
It spreads pests and disease causing organisms.
Helps in dispersal of weed seeds.
Negative effects of wind can be overcome by planting wind breakers, ensuring that land is always covered by vegetation.