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Which of the following irrigation technique is preferred where area has a irregular topography with excessive slope?
1. Sprinkler irrigation
2. Sub-surface irrigation
3. Furrow irrigation
4. Border irrigation

1 Answer

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Correct Answer - Option 1 : Sprinkler irrigation

Explanation:

Sprinkler Irrigation: Water is applied through spray through a network of pipes and pumps. Used when the land gradient is steeper, irregular topography, and the soil is erodible. 

Furrow Irrigation: Furrow is narrow field ditches that are excavated between rows of plants to carry water through it. In this method, only one-fifth to one-half of the land is cover through the water.
Border irrigation: Land is divided into a number of strips, separated by low levees called borders. Strip size: 10 – 20 m wide and 100 – 400m long. Water is made to flow from the supply ditch into each strip.

Sub-surface irrigation: It is the practice of applying water to soils directly under the surface. Moisture reaches the plant roots through capillary action. 

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