Scheduling Knowing When and How Much to Irrigate

In publication: Irrigation Management
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Introduction
- Benefits of Irrigation …3
- Protecting Water Resources …5
- Design, Materials and Management …6
Water Sources
- Types of Water Sources …9
- Water Quality Concerns …17
Legislation, Policy and Permits – Water-Taking and Low Water Response
- Permit To Take Water …19
- Ontario Low Water Management …21
- Some of the Legislation and Guidelines Protecting Water Resources …22
Scheduling Knowing When and How Much to Irrigate
- Water Cycle …24
- Water Balances: Rainfall and Crop Requirements …25
- Soil Water …25
- Crop Water Requirements …27
- Irrigation Scheduling …28
- Monitoring Soil Moisture …29
- Using the Plant to Indicate Water Stress …38
- Evapotranspiration …39
- Scheduling by Computer …47
- Considerations for Applying Irrigation Water …47
Irrigation Systems
- Sprinkler Irrigation …49
- Micro-Irrigation (also called drip or trickle) …61
- Controlled Drainage/Sub-Irrigation …65
- Irrigation Prices: $ Per Acre …68
- Irrigation Pumps …69
- Power Sources …71
- Hardware …74
BMPs for Crop Production
- Water Efficiency …77
- Fruit Crops …81
- Tree Fruit and Grapes …83
- Berry Crops …84
- Vegetable Crops …86
- Tree Nut Crops …91
- Tobacco …93
- Field-Grown Nursery Stock …94
- Container-Grown Nursery Stock …95
- Sod …97
Special Applications
- Fertigation of Field Vegetables and Tree Fruit …98
- Chemigation …103
- Wind Erosion Control …105
- Frost Protection of Berry Crops …106
- Evaporative Cooling …107
Analyzing the Costs and Benefits
- Worksheet 1: Water and Power Requirements …110
- Worksheet 2: Annual Ownership, Repair and Maintenance Costs …111
- Worksheet 3: Annual Operating Expenses …113
- Worksheet 4: Cost/Benefit Summary …115
- Worksheet 5: Break-Even Calculation …116
- Repair, Maintenance and Expected Life …116
Irrigation Scheduling Worksheet