Fundamentals in designing hydrotechnical amelioration. Processing hydro-meteorological foundations, foundations on soil, water regime in the soil, data on water usage – water balance, etc. Drainage. Surplus water, soil and groundwater (drainage hydro module, time for drainage). Possibilities and manners for surplus water drainage. Drainage systems (open, closed, combined). Designing, construction, exploitation and drainage in the drainage system. Drainage facilities (canals, drains, collectors, pumping stations, bridges, culverts, cascades, dams, etc.). Irrigation. Water balance, water deficit and the role of soil in irrigation. Calculating module, norm and tours of irrigation. Soil irrigation methods (irrigating, overflowing, channels, drop-by-drop, underground irrigation, etc.). Calculating the optimization for the irrigation system. Designing, construction, power and maintenance of the irrigation system. Facilities in irrigation (canals, pipelines, water catchments, pumping stations, regulation facilities, other system facilities).