Int. J. Curr. Microbiol. App. Sci (2018) 7 (2): 2660-2677



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P.R. Landge, et al

Horse power requirement 
Total head of pump sums up the suction head, 
delivery head, filter losses, mainline loss, 
operating pressure, fitting loss, Ventury head 
loss and elevation difference.
The energy requirement to operate the system 
is estimated using equation (3.17). 
… 
(3.17) 
Where,
Hp = Pump horse power requirement 
Q

= Total flow rate in mainline of a field, lps 
H = Total head, m 
η = Combined efficiency of pump set 


Int.J.Curr.Microbiol.App.Sci 
(2018)
 7
(2): 2660-2677 
2666 
Design 
of 
sprinkler 
irrigation 
for 
hypothetical field size 
Several combinations of the field sizes were 
considered in the design tool for the different 
crop types to make the tool more reliable in 
terms of the practical adaptability. The 
algorithms were designed in terms that it will 
provide the prevailed layout for the particular 
field size with selected components of the 
sprinkler irrigation system. 
Results and Discussion 
 
Estimating irrigation requirement of crops 
The procedure for estimation of daily crop 
water requirement is discussed in section 3.2. 
The 
estimation 
of 
daily 
crop 
water 
requirement usually requires information of 
reference 
evapotranspiration 
and 
crop 
coefficient factor. 
 
Reference crop evaporation 
The daily reference evapotranspiration data of 
32 years (1985-2016) calculated using 
CROPWAT software. The computed average 
daily reference crop evapotranspiration values 
on the basis 32 years climatological data are 
presented in Appendix-A and is observed to 
vary between 1.97 mm to 8.45 mm (Fig. 2). 

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