نقش مدیریت آبیاری بر بهره‌وری آب گندم (مطالعه موردی: شهرستان ارزوئیه کرمان)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی آب، دانشکده کشاورزی، دانشگاه شیراز، شیراز، ایران

2 گروه مهندسی آب، دانشکده آب و خاک، دانشگاه زابل، زابل، ایران

3 گروه مهندسی آب، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران

چکیده

با توجه به کم­آبی و خشکسالی­های اخیر اهمیت بهره­وری آب بیشتر مشخص می­شود­. بر این اساس هدف این پژوهش تعیین بهره­وری آب گندم در شهرستان ارزوئیه می­باشد. بدین منظور نیاز آبی با استفاده از داده‌‌های ایستگاه هواشناسی منطقه مورد مطالعه و نرم­افزار CROPWAT محاسبه گردید. همچنین به منظور تأیید مقادیر حاصل از نرم­افزار CROPWAT مقدار پتانسیل تبخیرتعرق با استفاده از فرمول­های هارگریوز-سامانی و جنسن-هیز نیز محاسبه شد. بر طبق آن جهت تعیین میزان حجم آب مصرفی گندم در واحد هکتار در طول دوره رشد، میزان هیدرومدول برای منطقه مورد مطالعه برآورد شد. با توجه به نتایج، مقدار بهره­وری فیزیکی گندم برابر 6/1 کیلوگرم بر مترمکعب و مقدار بهره‌‌وری اقتصادی آن برابر 13000 ریال بر متر مکعب، حاصل گردید. نتایج بیانگر آن است که در صورت تأمین نیاز آبی واقعی گندم و مدیریت صحیح آبیاری در مزارع، محصول گندم دارای بازده اقتصادی زیادی در سال 98-97 می­باشد.

کلیدواژه‌ها


عنوان مقاله [English]

The Role of Irrigation Management on Wheat Water Productivity (Case Study: Arzooieh City of Kerman)

نویسندگان [English]

  • Rahimeh Dehghani Dashtabi 1
  • SeyedHassan Mirhashemi 2
  • Milad Jahani 3
  • Parviz Haghighat jou 2
1 Department of Water Engineering, Faculty of Agriculture, Shiraz University, Shiraz, Iran
2 Department of Water Engineering, Faculty of Water and Soil, Zabol University, Zabol, Iran
3 Department of Water Engineering, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
چکیده [English]

Due to the recent water shortages and droughts, the importance of water productivity is becoming more apparent. The main objective of this study is to examine water productivity of wheat according to its water requirement and proper irrigation management. This research was performed in Orzouieh city of Kerman province located in an arid region. In this study by using meteorological data of the region, wheat evapotranspiration was calculated by CROPWAT. Then, potential evapotranspiration was also calculated by Hargreaves-Samani and Jensen-Haise methods to verify the values resulted by CROPWAT package. Irrigation Hydromodule was calculated too. The Volume of water consumed by wheat per hectare during growing season was also calculated using irrigation hydromodule. For performing this study, three wheat farms with proper irrigation management were selected. For calculating physical and economical productivity of wheat farms in the region, one of the farms was examined. The results of this study showed that the physical productivity (CPD) is equal to 1.6 kg/m3 and economical productivity (NBPD) is equal to 13000 Rls./m3. The calculated productivities demonstrate that supplying actual water requirement of wheat along with proper management of the fields, results high economical efficiency. 

کلیدواژه‌ها [English]

  • Water requirement
  • Wheat
  • Hydromodule
  • Physical Productivity
  • Economical productivity
Abolpour., B. (2010). Cultivation pattern in proportion to the capacity of water resources in the face of drought., Drought coping strategies workshop. P: 120. (In Farsi)
Ahmadi Adli, R. )2012(. Use of Class A evaporator for irrigation planning, an effective step in optimal management of water at the farm scale (Case study: Ardabil, Iran). Eleventh Irrigation Congress: Evaporation Reduction. Kerman, Iran. 123-436. (In Farsi)
Erfanian, M., Alizadeh , A., & Mohammadian, A. (2011). An Investigation on the Possible Differences between Present Crops Water Requirements and National Documents of Irrigation. Irrigation and Drainage of Iran 3 (3): 478-492.  (In Farsi)
Allen RG., Jensen ME., Wright JL. and Burman RD. )1989(. Operational estimates of reference evapotranspiration. Agronomy Journal 81: 650-662.
Babazadeh, H. & Iftikhar, Sh.. (2011). Optimal Irrigation Planning in Low Irrigation Conditions of Wheat, Barley and Corn Crops in Cold and Moderate Climates, The First National Conference on Meteorology and Agricultural Water Management, Karaj. (In Farsi)
Chouhan, S. S., Awasthi, M. K., & Nema, R. K. (2015). Studies on water productivity and yields responses of wheat based on drip irrigation systems in clay loam soil. Indian Journal of science and Technology, 8(7): 650-654.
Dehghani Sanij, H. , Nakhjavani Moghaddam, M. & Akbari, M. (2007). Evaluation of water use efficiency based on regional regulations and scarcity irrigation. Irrigation and Drainage of Iran 2 (1): 77-91. (In Farsi)
Hargreaves, G.H. )1994(. Defining and using reference evapotranspiration. J. of Irrig. and Drain. Eng., ASCE, 120 (6): 1132-1139.
Howell TA., Evett SR., Schneider AD. and Duesek DA, Copelland KS. )2000(. Irrigated fescue grass ET compared with calculated reference grass ET. Proceedings of 4th National Irrigation Symposium, American Society of Agricultural Engineers: St. Joseph, MI; 228-242.
Karbasi, M., Ismaili, M., Taheri, M & Bazargan, J. (2011). Study and estimation of water needs of crops and orchards using different methods to provide a suitable cultivation pattern in the irrigation and drainage network of Qara Daragh Dam, 11th National Seminar Irrigation and evaporation reduction, Kerman. (In Farsi)
Lecina, S., E. Playan, and D. Isidoro. )2005(. Irrigation evaluation and simulation at the irrigation district V of Bardenas (Spain). Agricultural Water Management, 73: 223-245.
Maroofpour, A. , Watankhah, F. And Behzadi Nasab, M. )2016(, Evaluation of efficiency of drip irrigation system in some farms of Zarrineh River Miandoab. Irrigation and Water Engineering 7 (25): 83-96. (In Farsi)
Piri, H. (2012) Technical evaluation of drip irrigation systems (Case study: Sarbaz city). 5: 19-36. (In Farsi)
Rao, K. V. R., Bajpai, A., Gangwar, S., Chourasia, L., and Soni, K. )2016). Maximizing water productivity of wheat crop by adopting drip irrigation. Research on Crop, 17(1): 163-168.
Soleimani, H. And Hasanli, A. M. (2009), Estimation of unit cost of water, water efficiency (WUE) and water added value for major products of Darab as a dry area. Dynamic Agriculture Quarterly 5 (1): 45-60. (In Farsi)
Wright JL., Allen, RG., and Howell TA. (2000). Conversion between evapotranspiration references and methods. Proceedings of 4th references and methods. Proceeding of 4th National Irrigation Symposium, American Society of Agricultural Engineers: St. Joseph, MI.; 251-259.