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Option 4 : Drip-irrigation
Concept:
Irrigation:
- Irrigation is the controlled application of water through man-made systems to meet the water requirements of agriculture.
- Irrigation is an artificial application of water to crops or plants, especially when an agricultural field does not get enough water through rains.
Explanation:
Drip-irrigation:
- Drip irrigation system, also known as ‘trickle irrigation system’.
- It is a method of applying the required amount of water directly to the root zones or base of plants through drippers or emitters at frequent intervals.
- Drip irrigation is a method of irrigating crops through narrow tubes.
- In this system, water is applied drop-by-drop or by a micro jet on the soil surface or sub-surface at a rate lower than the infiltration rate of the soil.
- The emitted water moves within the soil system largely by the unsaturated flow.
- The water moves into the soil and wets the root zones of plants vertically by gravity and laterally by capillary action.
- Drip irrigation can be used on windy days and during various land operations.
Thus, A technique of watering plants by making use of narrow tubing which delivers water directly at the base of the plant is called drip irrigation.
Micro-irrigation:
- Micro-irrigation is the slow application of continuous drips, tiny streams or miniature sprays of water above or below the soil surface.
- The Micro-irrigation system is effective in saving water and increasing water use efficiency as compared to the conventional surface irrigation method.
- It can be adopted in all kinds of land, especially where it is not possible to effectively use the flooding method for irrigation.
- Water is applied via a pressurized piping system.
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