Agricultural Drainage Engineering : Field and Laboratory Manual

1. In-situ Measurement of Hydraulic Conductivity
2. Determination of Drainage Coefficient
3. Installation of Piezometer and Observation Wells
4. Preparation of Iso -bath and Isobar Map
5. Measurement of Hydraulic Conductivity and Drainable Porosity
6. Design of Surface Drainage System
7. Design of Subsurface Drainage System
8. Determination of Chemical Properties of Soil and Water
9. Fabrication of Drainage Tiles
10. Testing of Drainage Tiles
11. Determination of Gypsum Requirement for Land Reclamation
12. Installation of Subsurface Drainage System
13. Operation and Maintenance of Surface and Sub-surface Drainage System
14. Design of Drainage Envelope or Drainage Filter
15. Leaching Requirement for Reclamation of Soil
16. Cost Analysis of Surface and Sub-surface Drainage System

Agricultural drainage system is planned to remove excess water from the crop land, whether coming through irrigation system, rainfall or runoff, before it creates waterlogging or high salinity condition. The Field and Laboratory Manual on “Agricultural Drainage Engineering” is prepared as per Fourth Deans'comm-ittee of ICAR for students of B. Tech. (Agril. Engg.). The manual is expressing the topics in simple language with the objective of giving insights of practical aspects. The manual deals with the practical aspects of drainage investigation, design of surface and subsurface drainage systems, installation of drainage system, fabrication and testing of tiles, gypsum requirement, design of envelope, cost estimation, maintenance, etc. It also deals with practical application of agricu-ltural drainage engineering like measurement of hydraulic conductivity in field and in laboratory, preparation of iso-bath and isobar maps, installation of piezo-meters and observation wells, design and installation of drainages systems, etc.