Drip irrigation, also known as trickle irrigation or micro-irrigation
system works in such a way that water is delivered drop by drop at or near the root zone
of plants. A network of valves, pipes, tubing, and emitters is
required to develop drip irrigation system. This method is considered as the most water-efficient
method of irrigation, since evaporation and runoff
are minimized. To make it more efficient it is sometimes buried under
the soil (in case of hard soil) at the root-zone level to avoid lose due
Sometimes drip irrigation is
plastic mulch, which further reduces evaporation. Drip irrigation
requires usually lower water pressures as compared to most other types
The advantages of drip irrigation are list
of the field is not necessary.
leaching which results in Minimized fertilizer/nutrient loss.
irregular shaped fields can also be irrigated
recycled water can also be used safely.
maintenance of moisture within the root zone.
frequency of irrigation is not dependent of soil type.
Minimized soil erosion.
uniform distribution of water.
cost of labour.
can be regulated by valves and drippers.
possibility of Fertigation with minimal waste of fertilizers.
risk of disease as Foliage remains dry.
cost of energy due to lower pressure than other types of
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The disadvantages of drip irrigation are listed
cost can be more than overhead systems.
- The sun
can affect the tubes used for drip irrigation, shortening their
usable life. Longevity is variable.
- If the
water is not properly filtered and the equipment not properly
maintained, it can result in clogging.
irrigation might be unsatisfactory if herbicides or top dressed
fertilizers need sprinkler irrigation for activation.
tape causes extra cleanup costs after harvest.
systems requires careful study of all the relevant factors like
land topography, soil, water, crop and agro-climatic conditions,
and suitability of drip irrigation system and its components.
lighter soils subsurface drip may be unable to wet the soil
surface for germination. Requires careful consideration of the
sufficient leaching, salts applied with the irrigation water may
build up in the root zone, usually at the edge of the wetting
Other irrigation methods
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