@article{Trivedi:245275,
      recid = {245275},
      author = {Trivedi, Kairav and Singh, O. P.},
      title = {Impact of quality and reliability of irrigation on field  and farm level water productivity of crops},
      address = {2008},
      number = {614-2016-40830},
      pages = {pp.141-155},
      year = {2008},
      note = {In Kumar, M. Dinesh (Ed.). Managing water in the face of  growing scarcity, inequity and declining returns: exploring  fresh approaches. Proceedings of the 7th Annual Partners  Meet, IWMI TATA Water Policy Research Program, ICRISAT,  Patancheru, Hyderabad, India, 2-4 April 2008. Vol.1.  Hyderabad, India: International Water Management Institute  (IWMI), South Asia Sub Regional Office},
      abstract = {This paper examines the impact of quality and reliability  of irrigation on water productivity of individual
crops and  cropping system in the farm through comparison of crops  watered by different types of irrigation systems
such as  canal irrigation; well irrigation and conjunctive use. Then  it analyzes the actual factors that drive  differential
productivity, and which change due to change  in quality and reliability regime of irrigation. The study  area is Bist
Doab area in Punjab and the analysis was  carried out for two agro-climatic regions, both semi-arid,  one having
medium to high rainfall and the other having low  to medium rainfall. The first location (Changarwan) is  predominantly
canal and well irrigated, whereas the second  location (Skohpur) has well irrigation and conjunctive  use.
The analysis involved working out an index called  “irrigation quality index” for different types of  irrigation
systems, and then compares water productivity of  individual crops vis-à-vis estimated values of this index,  for each
location. The crop water productivity parameters  analyzed are: physical productivity of water in kg/m3
; and  water
productivity in economic terms.
Overall, the  irrigation quality index was higher for: well irrigated  fields as compared to canal irrigated
fields and fields  irrigated by both wells and canals in Skohpur; and canal  irrigated fields for most crops in Changarwan.
Comparison  of irrigation water quality index estimated for major crops  under different sources of irrigation vis-à-vis
the water  productivity of the respective crops show that differential  reliability has an impact on economic productivity
of water  (Rs/m3
). The fields, which received irrigation water of  higher quality and reliability got higher  water
productivity in rupee terms. However, the impact of  differential quality and reliability was not visible on  physical
productivity of water for fodder crops.
Contrary  to the belief that higher quality and reliability of  irrigation would result in better yields, the fields,
which  were receiving poor quality irrigation gave higher yields.  This was primarily due to the high nutrient load
which  canal water contained that increased the yield of those  crops. Fodder crops also gave higher yields under  less
reliable irrigation water supply. Hence, one can  conclude that improved quality and reliability of  irrigation would
help enhance the water productivity in  crop production.},
      url = {http://ageconsearch.umn.edu/record/245275},
      doi = {https://doi.org/10.22004/ag.econ.245275},
}