What is surface irrigation? Discuss the types and applications.
Surface irrigation involves applying water directly to the soil surface, allowing it to infiltrate into the root zone. Common types include:
Furrow Irrigation: Water flows in small channels between rows of crops. It’s suitable for row crops and helps reduce water wastage.
Border Irrigation: Fields are divided into strips or borders, and water flows down the borders. It’s effective for large, flat fields.
Basin Irrigation: Land is divided into small, level basins surrounded by bunds. It’s used for crops like rice that need standing water.
Flood Irrigation: Water is applied to the entire field, allowing it to cover the land. It’s simple but can lead to high water wastage.
Surface irrigation is cost-effective but may require careful management to avoid waterlogging and inefficiency.
Explain the purpose of a weir in a diversion headwork.
What is strriup ?What is the function of strriup?
What is Sprinkler irrigation?
What are common causes of weir failure?
Explain the role of a head regulator in diversion head works.
What are the benefits of using drop structures in irrigation canals?
Describe the primary features and benefits of a rockfill dam.
Describe Lacey’s theory of uniform flow and its significance.
