Paper Information

Journal:   JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)   2010 , Volume 17 , Number 1; Page(s) 129 To 143.
 
Paper: 

EVALUATION OF VARIABLE-RATE WATER DISTRIBUTION UNIFORMITY FROM A MODIFIED CENTRE PIVOT IRRIGATION SYSTEM

 
 
Author(s):  HEZARJARIBI A.*, SHARIFAN HOSSEIN, ANSARI HOSSEIN, SOHRABI BORHAN
 
* DEPT. OF WATER ENGINEERING, GORGAN UNIVERSITY OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES
 
Abstract: 

Variable rate water application can be achieved along the length of centre pivot by variable-rate control systems. But to attain a satisfactory level of irrigation efficiency, high water application uniformity over area with same irrigation rate is required. In this research, the water distribution uniformity was evaluated with a modified centre pivot irrigation system that was able to vary the amount of water along the length of centre pivot and vertical to movement direction. Uniformities along the length of centre pivot and vertical to movement direction were calculated at three movement speeds and seven solenoid valve pulsing levels. Results showed that modified centre pivot is able to apply water with acceptable uniformity coefficient (82 to 96%) under different pulsing level and movement speed. Uniformity was increased by increasing pulsing level and decreasing movement speed.

 
Keyword(s): CENTRE PIVOT, VARIABLE-RATE IRRIGATION, WATER DISTRIBUTION UNIFORMITY
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 15
 
Latest on Blog
Enter SID Blog