Drainage; Control of Sub-surface Water Management by Drainage with Pipes, Open-ditch Drainage and Amelioration of the Subsoil; Important Data for Planning and Dimensioning— 17 стр.
Methods of soil analysis for water management for agricultural purposes; physical laboratory tests; determination of height of closed capillary fringe— 2 стр.
Methods of soil investigations for agricultural water engineering - Physical laboratory tests - Part 14: Determination of volume of solids of bog soils— 3 стр.
Methods of soil analysis for water management for agricultural purposes; physical laboratory tests; determination of water permeability in water saturated soil samples taken by the cylindrical core-cutter— 2 стр.
Methods of soil investigations for agricultural water engineering - Physical laboratory tests - Part 13: Determination of soil density, total pore volume and porenumber of mineral soils— 3 стр.
Methods of soil investigations for agricultural water engineering - Field tests - Part 13: Determination of carbonate, sulfide, ph-value and iron(II)-ions— 4 стр.
Methods of soil investigations for agricultural water engineering; physical laboratory tests, determination of the subsidence of peat soils after drainage— 3 стр.
Methods of soil investigations for agricultural water engineering - Physical laboratory tests - Part 19: Determination of the subsidence of peat land after drainage— 4 стр.
