Question

Which of the following is NOT correct with respect to drip irrigation?

1. It saves water wastage.
2. Fertilizers can be used with high efficiency.
3. It requires very less installation.
4. It prevents soil erosion.

Answer 1

Correct Answer - Option 3 : It requires very less installation.

It requires very less installation is NOT correct.

• Drip irrigation requires very little installation is NOT correct with respect to drip irrigation.
  • Drip irrigation is sometimes called trickle irrigation.
  • It involves dripping water onto the soil at very low rates (2-20 liters/hour) from a system of small diameter plastic pipes fitted with outlets called emitters or drippers.
  • Drip irrigation is a type of micro-irrigation system that has the potential to save water and nutrients by allowing water to drip slowly to the roots of plants, either from above the soil surface or buried below the surface.
  • The goal is to place water directly into the root zone and minimize evaporation.
  • Among all irrigation methods, drip irrigation is the most efficient and can be practiced for a large variety of crops, especially in vegetables, orchard crops, flowers, and plantation crops.

• Irrigation:
  • Irrigation is the artificial application of water to the soil or agricultural field.
  • It is the replacement or supplementation of rainwater with another source of water.
  • It is used in dry areas and during periods of inadequate rainfall.
  • The main idea behind irrigation systems is to assist in the growth of agricultural crops and plants by maintaining the minimum amount of water required, suppressing weed growth in grain fields, preventing soil consolidation.
• Methods of irrigation:
  • Canal Irrigation -
    • Canals can be an effective source of irrigation in areas of low-level relief, deep fertile soils, a perennial source of water, and an extensive command area.
    • Therefore, the main concentration of canal irrigation is in the northern plain of India, especially the areas comprising Uttar Pradesh, Haryana, and Punjab.
  • Tank Irrigation:
    • The tank is developed by constructing a small bund of earth or stones built across a stream.
    • The water impounded by the bund is used for irrigation and other purposes.
    • The tank comprises an important source of irrigation in the Karnataka Plateau, MP, Maharashtra, Odisha, Kerala Bundelkhand area of UP, Rajasthan, and Gujarat.
  • Sprinkler Irrigation:
    • In this method, water is sprayed into the air and allowed to fall on the ground surface somewhat resembling rainfall.
    • The spray is developed by the flow of water under pressure through small orifices or nozzles.
    • The sprinkler irrigation system is a very suitable method for irrigation on uneven lands and on shallow soils.