Submit or Track your Manuscript LOG-IN

Comparative Study of Crop Water Productivity at Farm Level under Public and Civil Canal Irrigation Systems in Peshawar, Pakistan

Comparative Study of Crop Water Productivity at Farm Level under Public and Civil Canal Irrigation Systems in Peshawar, Pakistan

Rabnawaz1*, Muhammad Jamal Khan2, Tahir Sarwar2, Mohammad Jamal Khan3

1 On-Farm Water Management Department, Govt. of Khyber Pakhtunkhwa, Peshawar; 2 Department of Water Management, The University of Agriculture, Peshawar; 3 Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar,
Pakistan.

ABSTRACT

Agriculture consumes more water than any other human activity. In Pakistan, the contribution of irrigated agriculture is more than 90%, thus the sustainable water supply to meet the food and fibre demand of the ever increasing population is a big challenge. Increase in crop water productivity (CWP) is one of the most important options for sustainable use of water resources in semi-arid environment. A field study was conducted during Rabi 2010-11 and Kharif 2011 crop seasons to compare the CWP of main crops (wheat, sugarcane, maize and tomato) under public and civil canal irrigation systems in Peshawar Valley. For this purpose, 18 farms were selected under public canal system and 13 under civil canal systems. Results revealed that average CWP of wheat, maize, sugarcane and tomato was 0.96, 1.11, 3.31, 3.61 kg m-3 under public and 0.90, 0.77, 2.36, 2.98 kg m-3, under civil system, respectively. In public canal system, the average CWP of the selected crops was 7, 40, 44 and 21% higher than civil canal system, respectively. Low CWP in civil canal system was mainly attributed to over irrigation (because of high water allowance). Quantitative analysis of the yield per unit volume of water applied was carried out using dummy-regression model. The difference in means for maize, sugarcane and tomato crop was found highly significant while in case of wheat it was non-significant. This study concludes that the public system remained more productive with high CWP at farm level for all the major crops. However, there is a great potential for increasing CWP under civil system by rationalizing the water allowance.

 

To share on other social networks, click on P-share. What are these?

Sarhad Journal of Agriculture

September

Vol. 35, Iss. 3, Pages 663-1019

Featuring

Click here for more

Subscribe Today

Receive free updates on new articles, opportunities and benefits


Subscribe Unsubscribe