Service Contract No 2007 / 147-446 NYANYALI ... - Swaziland

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‣ The Motor Control Centres (MCC) is well designed and still in good working condition.Figure 2 Lateral isolation valves‣ This project was developed on only two soil sets, the W and the B soil sets. Under thesesets there are various soil sets and different irrigation regimes may be applied to differentareas of the farm.Nyanyali Farmers Cooperative Report - 2009 Page - 3 -
3 T E C H N I C A L A U D I T R E P O RT3.1.1 R E V I E W O F T H E I R R I G A T I O N D E S I G N C R I T E R I AA N D S P E C I F I C A T I O N S3.1.1.1 Irrigation Design and Specifications by the contractorDesign information from the designer and installer Mendip could not be obtained. The designwas therefore checked against Swaziland Sugar Industry Standard and SABI norms shownbelow.3.1.1.1.1 DESIGN CRITERIACropArea under irrigationGross ApplicationNet ApplicationIrrigated CycleSprinkler dischargeSprinkler SpacingPrecipitation RateStand timeAnnual Irrigation hoursSugar Cane47.6Ha52mm39 mm per cycle (6.5 mm/day)6/7 days (depending on soil type)0.39 l/s18m x 18m4.3mm/hr12 hours (depending on soil type)3 300 hours3.1.1.2 Review of Contractor Irrigation Design Criteria and Specifications3.1.1.2.1 PlanningOf the four major input of planning namely crop, climate, soil and irrigation system, the studyrevealed that crop and climate information used as supplied by the SSA (Swaziland SugarAss) Soil types were not taken into consideration during design and or implementation ofphase two of the project.Nyanyali Farmers Cooperative Report - 2009 Page - 4 -
Page 1: Restructuring and DiversificationMa
Page 5 and 6: 8 RECOMMENDATIONS .................
Page 7 and 8: ABBREVIATIONSAbbreviationAEARCASAEC
Page 9: 2 B A C K G R O U N D O N I R R I G
Page 13 and 14: 7,1 Type type Vyrsa 70 Vyrsa 707,2
Page 15 and 16: Soil informationSoil properties use
Page 17 and 18: 4 F I E L D E V A L U A T I O N O F
Page 19 and 20: Figure 5. 2 x 300mm x 45° bends on
Page 21 and 22: 4.1.1.1.3 Suction Pipe InletsSpacin
Page 23 and 24: hf6375kQ4d2……………………
Page 25 and 26: Table 1. pump and motor specificati
Page 27 and 28: Figure 13. Inside Nyanyali pump hou
Page 29 and 30: pipe:Filters:Pumpingequipmentand el
Page 31 and 32: 4.1.3 S u p p l y S y s t e mThe ev
Page 33 and 34: When down -stream pressure falls be
Page 35 and 36: 5.1.1 S p r i n k l e r p r e s s u
Page 37 and 38: 6 A S S E S S M E N T O F O P E R A
Page 39 and 40: indication of the amount small grow
Page 41 and 42: 7 C O N S T R A I N T S T O E F F I
Page 43 and 44: ‣ The optimum sprinkler operating
Page 45 and 46: 8 R E C O M M E N D A T I O N STo e
Page 47 and 48: ‣ A consortium could be formed fo
Page 49 and 50: Accurate details are required also
Page 51 and 52: 12. Solomon K.H. 1988a, Irrigation
Page 53 and 54: Nyanyali Farmers Cooperative Report
Page 57 and 58: SEB usage for River pump station Ph

Service Contract No 2007 / 147-446 NYANYALI ... - Swaziland

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