IRR401 Management of Irrigation Systems (8)
CSU Discipline Area: Soil and Water Sciences (SOWAT)
Duration: One session
Abstract:
This subject examines several approaches to irrigation scheduling; evaluation of irrigation methods that suits particular irrigation settings; design, management, and evaluation of irrigation methods and conveyance systems. Drainage and soil salinity. Computer simulation softwares for crop water requirement, irrigation scheduling, and irrigation system (gravity and pressurised) design and evaluation.
It's expected that students will have completed IRR200 or IRR400 before enrolling into this subject. This subject builds on the objectives completed in IRR200 or IRR400.
+ Subject Availability Modes and Locations
| Session 1 | |
|---|---|
| Distance | Wagga Wagga |
Continuing students should consult the SAL for current offering details: IRR401
Where differences exist between the Handbook and the SAL, the SAL should be taken as containing the correct subject offering details.
Objectives:
Upon successful completion of this subject, students should:
- be able to quantify crop water requirements and schedule irrigation using several approaches;
- be able to describe the diversity of irrigation systems;
- be able to evaluate the appropriateness of the irrigation system to a particular soil-crop-climate combination;
- be able to demonstrate the basics of design, drip, sprinkler, and gravity irrigations;
- be able to evaluate the performance of irrigation systems;
- be able to describe different conveyance structures affecting irrigation performance;
- be able to appraise different flow measuring structures used in channels and pipes;
- be able to outline the characteristics of soils which influence water infiltration and drainage through the soil profile;
- be able to accurately explain the interaction between irrigation in a semi-arid environment, the accumulation of salt and the interaction with groundwater.
Syllabus:
The subject will cover the following topics:
Irrigation Scheduling and Crop Response including; - Plant response to water - Root zone water balance - Climate based methods - Soil based methods - Plant based methods - Deficit irrigation - Partial root zone drying Surface irrigation design, management, and evaluation including; - Infiltration - Surface irrigation process - Basin irrigation - Border irrigation - Furrow irrigation - Irrigation performance measures - Surge irrigation - Land leveling Sprinkler irrigation implementation and Design including; - Types of sprinklers - Discharge-pressure relations - Distribution uniformity - Application rates - Hydraulic design - Head loss in the lateral - Sizing of lateral, submain and main - Selection of Sprinklers Microsprinklers - Types of microsprinklers - Selection of microsprinklers - Discharge - pressure relationship - Hydraulic design - Subsurface drip - Fertigation - Filtration techniques - Drip irrigation maintenance Irrigation pumps - Classification of pumps - Pump characteristic curves - Similarity (Affinity) Laws - Pump power - Pump selection Drainage and Salinity - Excees irrigation and groundwater table - Methods of subsurface drainage - Basic salt balance - Methods of dealing with salt - Leaching requirements - Waste water and recycled water management for irrigation Irrigation Conveyance Systems - Types of conveyance systems - Hydraulics of open channel flow - Design of open channel - Conveyance structures - Discharge measurement
The information contained in the 2013 CSU Handbook was accurate at the date of publication: 24 April 2013. The University reserves the right to vary the information at any time without notice.