Page 9 - soil-plant-water relationship and water requirement
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4.2 CRITICAL GROWTH PERIODS MANAGEMENT 34
4.3 IRRIGATION RELATED MANAGEMENT 34
4.4 ROOTING DEPTH AND MOISTURE EXTRACTION PATTERNS 35
Exercise 4 37
5.0 CROP AND IRRIGATION WATER REQUIREMENT
5.1 IRRIGATION IN AGRICULTURAL SECTORS
5.1.1 Irrigation 38
5.1.2 Benefit of Irrigation 39
5.2 CROP WATER REQUIREMENT 39
5.3 EFFECTIVE RAINFALL 42
5.4 FIELD WATER BALANCE 42
5.5 IRRIGATION WATER REQUIREMENT
5.5.1 Crop Water Requirement and Irrigation Water 44
Requirement relationship
5.5.2 Irrigation Requirement 45
5.5.3 Irrigation Scheduling 46
Exercise 5 49
6.0 IRRIGATION TERMS
6.1 IRRIGATION DEPTH 50
6.2 IRRIGATION FREQUENCY 50
6.3 IRRIGATION PERIOD 51
6.4 IRRIGATION EFFICIENCIES
6.4.1 Application Efficiency 52
6.4.2 Water Conveyance Efficiency 52
6.4.3 Water Strorage Efficiency 53
Exercise 6 54
REFERENCES
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