Vol. 3 (2) : March-April 2012 issue
Green Farming Vol. 3 (2) : 206-209 (March-April, 2012)
Performance evaluation of porous pipe irrigation in okra crop
P. SUSEELA1
Water Management Research Unit, Kerala Agricultural University, Vellanikkara, Thrissur - 680 651 (Kerala)
Designation : 1Associate Professor *(suseela_palazhy@yahoo.co.in)
Subject : Water and Natural Resource Management, Water Conservation Engg., Water Harvesting, Farm Pond, Sewage Water, Irrigation
Paper No. :
Total Pages : 4
Received : 06 July 2011
Revised accepted : 28 February 2012
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Citation :
P. SUSEELA. 2012. Performance evaluation of porous pipe irrigation in okra crop. Green Farming Vol. 3 (2) : 206-209 ; March-April, 2012
ABSTRACT
In the present study, an attempt was made for the comparative evaluation of porous pipe subsurface irrigation with inline and online drip irrigation in sandy loam soil. The study revealed that, at all operating pressures, viz., 0.4, 0.8 and 1 and 1.2 kg/cm2; the discharge rate of the porous pipes installed at different depths (7.5, 15, 22.5 and 30cm depths), was found to decrease with increase of time. The optimum operating pressure for the porous pipe in sandy loam soil having 1.6 cm inner diameter was found to be 0.8 kg/cm2 and porous pipes were having only medium distribution efficiency. The porous pipe installed at 22.5 cm depth was found to exhibit maximum soil moisture distribution efficiency and discharge rate. The performance evaluation of porous pipe in bhindi crop field revealed that porous pipe cannot be recommended for irrigating the plants since it get clogged even after one year and also in the first year itself it gave only medium distribution efficiency.
Key words :
Discharge rate, drip irrigation, okra, porous pipe, soil moisture.