11 Disadvantages of center pivot irrigation:
- Not suitable to irrigate a large rectangle or a square field
- Unequal distribution of water and fertilizers
- Irrigation efficiency is usually much lower
- Crops sensitive to stream or crown wetting
- Lack of aeration in the root zone
- Wind affects the water distribution
- Evaporation losses can be high
- High labor requirements for some systems
- Some soils may cause problems for continuous move systems
- Plant disease can arise from wetting or salts in the water
- Maintenance costs are relatively high