About Surface Irrigation
This course covers the following portions, Introduction: definitions, concepts and needs for land and water development in rural and urban areas. Soil-Plant-Water system: general description of soil system, definition of soil water, soil moisture characteristics, soil water retention, basic concepts of soil water dynamics, methods of determining soil water content, infiltration. Irrigation Water Requirement: consumptive use and its estimation, dependable and effective rainfall, net and gross irrigation requirement, field and scheme water supply. Irrigation scheduling: irrigation depth and interval, planning irrigation schedule. Surface Irrigation Methods: classification, (Basin, Furrows, Border, and Wild Flooding), system selection. Basic concepts of surface irrigation: advance and recession curves, storage, depletion, surface irrigation models, irrigation efficiencies. System Design (level basins, graded borders, furrow): selection of application time, stream size, field layout. Tertiary Unit Design: layout and water delivery to tertiary systems. Tank Irrigation. Land leveling