Irrigation: Scheduling

cover of Irrigation: Scheduling

Paperback - August 2015 - AU $25.00

Learn about planning when and how much water to apply to a crop to achieve crop production or a particular quality.

Scheduling irrigation is about planning when and how much water to apply to a crop to achieve crop production or a particular quality. The principles of scheduling water apply to all crops, however the critical timing, methods and techniques can vary with the crop.

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Details

Paperback | August 2015 | $ 25.00
ISBN: 9781742567877 | 66 pages
Publisher: NSW Department of Primary Industries

Contents

Chapter 1: Introduction
Chapter 2: Safety
Importance
Hazards associated with irrigation systems
Chapter 3: Environmental impacts of irrigation
Importance
Sustainable use of irrigation water
Management
Chapter 4: The need for water varies
Evapotranspiration
Water stress and water logging
Crop response to stress
Chapter 5: Factors affecting evapotranspiration
Weather
Crop
Other factors
Calculating crop evapotranspiration
Chapter 6: Scheduling irrigations
Weather-based scheduling

Plant-based scheduling
Soil-based scheduling
Chapter 7: How soil holds water
Soil moisture tension
Field capacity
Saturation point
Refill point
Permanent wilting point
Plant available water capacity (PAWC)
Chapter 8: Data from soil moisture probes
Non-continuous data
Continuous data
Data display
Record keeping
Chapter 9: Do you need a calibrated probe?
When calibration is not needed
When calibration is needed
Chapter 10: Implementing a deficit strategy
Introduction
Types of deficit strategy
Chapter 11: Placement of soil probes
Introduction
Use of Electro-Magnetic (EM) induction soil surveys
Chapter 12: Irrigation water quality
Salinity
Water pH
Sodicity
Chloride
Calcium carbonate
Soluble iron
Turbidity
Nutrients
Pesticides
Testing water quality
Minimise the effects of irrigating with poor-quality water