Cover Image
close this book Design and operation of smallholder irrigation in South Asia
View the document Foreword
View the document Abstract
View the document Chapter 1 - Introduction
close this folder Chapter 2 - Profile of the smallholder
View the document Fractionation and consolidation of the smallholding
View the document Smallholder attitude toward farmer-owned and government systems
View the document Cultivator willingness to undertake more intensive cultivation
View the document Smallholder attitude toward credit
View the document Theft and vandalism of control structures
close this folder Chapter 3 - Land shaping and water distribution at the field level
View the document Land shaping by the cultivator vs. institutionally
View the document Land shaping and water management in smallholder irrigation
View the document Land shaping as a project component
close this folder Chapter 4 - Water supply and demand
View the document Degree of storage regulation
View the document Intensity of irrigation
View the document Crop water requirements and crop water response
View the document Effective rainfall
View the document The particular case of water requirements for paddy
close this folder Chapter 5 - Cropping patterns in irrigation design
View the document The degree of control of selection of crops
View the document Cropping pattern design and project formulation
close this folder Chapter 6 - Irrigability
View the document Soil surveys and land classification
View the document Soil constituents
close this folder Soils problems on irrigation
View the document Saline and alkaline soils
View the document Expansive days
View the document Gypsiferous soils
View the document Acid sulphate soils (cat clays)
View the document Podzols
View the document Lateritic soils
View the document Dune sands
close this folder Chapter 7 - Canal systems for smallholder irrigation
close this folder Introduction and definitions
View the document Designing for variable supply
View the document Varying demand within the service area
View the document Allocation of water and establishing water charges
View the document Capacity of primary and secondary canals and size of irrigation area
close this folder Distribution at the tertiary level
View the document Background
View the document Tertiary system design for non-paddy crops
View the document Tertiary system design for areas primarily under paddy
View the document Tertiary system design for mixed cropping
View the document Layout of tertiary channels
close this folder Chapter 8 - Hydraulics of canal regulation and types of control structures
View the document Background
View the document Downstream control with limited demand
View the document Upstream control with rotational delivery
close this folder Hydraulic controls on secondary and tertiary canals
View the document Downstream control
View the document Upstream control
View the document Hydraulic controls on primary canals
View the document Production of small hydraulic structures
close this folder Chapter 9 - Operation and maintenance
View the document Introduction
View the document Inadequate budget for O and M
View the document Desilting of canals
View the document Weed control in canals
View the document Operation of partially completed systems
View the document Night irrigation
View the document Monitoring of project performance
View the document Application of computers to irrigation system operation
View the document Social and political pressures in system operation
close this folder Chapter 10 - Durability of canal linings
View the document Reasons for lining
View the document Causes of deterioration canal linings
View the document Construction materials for primary and secondary canal linings
View the document Construction materials and production methods of tertiary canal linings
close this folder Chapter 11 - Construction and maintenance problems of drainage works
View the document Drainage and the cultivator
View the document Formal and informal tertiary drainage systems
View the document Subsurface field drainage
View the document Primary and secondary drainage
close this folder Chapter 12 - Cultivator organizations
View the document Cultivator organizations in irrigation system operation
View the document Traditional organization in village-level irrigation schemes
View the document Projection from the village-level organization to cultivator organizations in public systems
View the document Experience and problems with water user groups in public irrigation systems
close this folder Chapter 13 - Village schemes and small tank projects
View the document Background
View the document Farmer-constructed diversion systems
View the document Village schemes with storage
close this folder Chapter 14 - Groundwater development
View the document Introduction
View the document Small, individually-owned, suction-mode wells
View the document Individually owned and group owned force-mode wells
View the document Large capacity public tubewells
View the document Technical problems in design and construction of medium and large tubewells
View the document Water distribution from medium tubewells
View the document Functions of the tubewell operator
View the document Power supply problems
View the document Comparison of medium and large wells
close this folder Chapter 15 - Conjunctive use of surface and groundwater
View the document Definitions
View the document Direct conjunctive use
View the document Indirect conjunctive use
close this folder Chapter 16 - Pumped lift irrigation distribution
View the document Background
View the document The application of individually owned small pumping units
View the document Centralized pumped-lift systems
close this folder Chapter 17 - Technical and operational improvements in rehabilitation of irrigation projects
View the document Introduction
View the document The dam and reservoir
View the document The canal system
View the document Drainage
View the document Introduction of high technology irrigation methods
close this folder Chapter 18 - Ecological and riparian factors in irrigation development
View the document Introduction
View the document Ecological issues in groundwater development
View the document Surface water development
View the document Riparian issues
View the document References
View the document Distributors of world bank publications

Chapter 5 - Cropping patterns in irrigation design