Which of the following is/are the advantage/ advantages of practicing drip irrigation?1. Reduction in weed2. Reduction in soil salinity3. Reduction in-soil erosionSelect the correct answer using the code given below.
✓ Correct answer: c) 1 and 3 only
ExplanationDrip irrigation is a type of micro-irrigation system that applies small amounts of water and fertilizer uniformly across a specific area.Examples of drip irrigation methods include sur- face drip irrigation, subsurface drip irrigation (SDI), drip tape, and micro-sprinklers.Option 1 is correct : Drip irrigation delivers water directly to the plant’s root zone, reducing water availability for weeds, which helps in minimizing weed growth.Option 2 is incorrect : Some of the disadvantages of Drip Irriga- tion are sensitivity to clogging, problem of moisture distribution, salinity hazards and high cost compared to furrow.Option 3 is correct : Drip irrigation generally doesn’t contribute to significant erosion since water is delivered at low pressures and in controlled amounts, unlike surface irrigation where water flow can lead to erosion.48
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