Design of Drip Irrigation System

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Irrigation Scheduling• Crop : Citrus• Area: 30 acres• Root zone depth: 80 cm• Maximum allowable deficit (MAD): 40%• ETo (mm/day): 8 mm/day• Kc: 0.9• Soil texture: Loamy clay• Bulk density: 1.4 gm/ml• Field capacity: 32%• Wilting point: 15%• Available moisture: 17%• Daily peak season water demand: 7.2 mm/day• Gross daily demand (mm/day), assuming 90% efficiency: 8 mm/day• Available moisture by volume: 0.24 cm 3 of water/cm 3 of soil• Total available moisture: 19.04 cm• Water content at 40% MAD: 7.62cm• No. of day after irrigation is due: 10 days
Irrigation SchedulingCanopydiameter(m)Gross CWR(liters/day)Time of irrigation with 4emitters (hrs/day)2 25 1.33 57 2.84 100 5.0
Page 2 and 3: Drip Irrigation?Drip irrigation is
Page 4 and 5: Components of Drip Irrigation Syste
Page 6 and 7: Criteria for System Selection• Ec
Page 8 and 9: Command Area Information• A comma
Page 10 and 11: Selection of Type and Number of Emi
Page 12 and 13: Design of Mainline and Laterals The
Page 14 and 15: Hazen-Williams Equation (C=150)∆
Page 16 and 17: Frictional Head Losses (m/100 m) fo
Page 20 and 21: Frictional Head Losses (m/100m) for
Page 24 and 25: Frictional Head Loss (m/100 m) for
Page 26 and 27: Head Losses in Valves and Accessori
Page 28 and 29: Design of Prime MoverPower requirem
Page 30 and 31: ExampleDesign a drip irrigation sys
Page 32 and 33: Example (cont)• Divide the area i
Page 37 and 38: Energy/Head LossesHead loss in pipe

Design of Drip Irrigation System

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