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AGRICULTURE USE OF IRRIGATION

TYPES OF IRRIGATION

SYSTEM APPLICATION ADVANTAGES LIMITATIONS
Pop-Up Sprinklers Lawns, bowling, greens, golf courses

Easily Automated,

Retract below ground level for mowing

High pressure and discharge may limit the number that can operate at one time
Mini-sprinklers and micro-jets Shrubs, perennials, trees orchards

Water applied to the specified area with little wastage and low-run-off

Operate at low pressure

Easily damaged so use in public is limited

Low application rate means that they need to operate for long periods

Drip Tube Row crops such as cut flowers, vegetables, in groud nursery plants

Inexpensive

Efficient (water only applied to the root zone)

Need good fliters

Not satisfactory for germinating rows of seedlings

External drippers on low density poly pipes Vineyards, orchards, gardens

Self compensating types given uniform discharge despite variations in elevation

Inexpensive

Need good filters

May not wet a big enough percentage of root zone in some situations

Overhead sprinklers Nursery standout areas

May be fixed or movable

Can apply water quickly

Suitable for frost control

Wasteful of water

Need high pressure

Wets foliage which may cause disease

Wets nearby areas, paths and people and may encourage weeds

Subsurface drip Orchards, vines and annual crops Efficient (water only applied to root zone) Expensive to install
Flood/gravity fed Grain and fodder crops and pastures

Relatively inexpensive to operate

Can cover large areas reasonably quickly

Can be expensive to install

Large areas devoted to supply system eg channels

Travelling Irrigator

Centre Pivot Lateral Move (CPLM)

Turf and pasture

Large cropping areas

Readily movable

Relatively even water distribution

Labour intensive

Require high pressure

Expensive to Install

DOWNLOAD THE TYPES OF IRRIGATION TABLE