Climatic Potentials in Iran for Rainfed Sunflower Cultivation

Document Type : Research Paper

Authors

Abstract

Oilseeds are of great importance in ensuring food needs and the overall national economy and have gained so much importance by the experts. Many studies on the characteristics of sunflower aspects of botany and economy have been conducted. The review of environmental and in particular climatic needs of sunflower can play an important role in optimizing water use and management of water. In this respect to identification of climatic capabilities in Iran for cultivation of rainfed sunflower synoptic dada from 114 weather stations on 20 year period from 1989-2008 were collected and processed. Absolute values of mean daily temperature, precipitation, and wind speed at 2 m from the ground, sunshine hours and relative humidity were obtained from Iran meteorology agency. Prone areas using maps of elevation, slope, and percent of water supply from rainfall, relative humidity and temperature thresholds affecting cultivation of sunflower was identified by GIS. AHP method for weighting and map combination were used. The results showed that just 14.7% of total area of Iran have moderate to good condition for cultivation of rainfed sunflower. Of these 1.6% of total area has very good condition, 3.6% have good condition and about 9.5% have moderate conditions. Caspian Sea Coasts are in the best condition. About 59% of crop water needs in this area is supplied by rainfall and suitable temperatures. Outside of this area just out of the coast of Persian Gulf coasts can be found in the appropriate areas. Despite the expectation, in Minab 54% of crop water needs provides by rainfall and suitable temperature conditions. Thus, it can be said that out of the Caspian Sea Minab has best condition for cultivation of rainfed sunflower

Keywords

References

خواجه­پور، محمدرضا، ۱۳۸۵، گیاهان صنعتی، چاپ دوم، انتشارات جهاد دانشگاهی واحد صنعتی اصفهان، اصفهان.
رمضانی، بهمن و لادن کاظمی­راد، 1380، شناخت نواحی مستعد کشت گیاه صنعتی آفتاب‌گردان در جلگة شرق گیلان، مجلّة فضای جغرافیایی، 19، 142-127.
سیفی، سید محمدرضا؛ بابک پیکرستان و مرضیه کلهر، 1390، زراعت و پرورش دانه‌های روغنی، آموزش و ترویج کشاورزی، آموزش و ترویج کشاورزی، تهران.
فرهنگ­آسا، کیوان؛ عطا ا... سیادت و غلامرضا قدرتی، 1389، بررسی اثر تاریخ­های مختلف کاشت بر عملکرد و اجزای عملکرد دانة ارقام زودرس سویا در شرایط دزفول، فیزیولوژی گیاهان زراعی، 2 (1)، 127-111.
ولایتی، سعدالله، ۱۳۸۳، جغرافیای آب‌ها، انتشارات جهاد دانشگاهی مشهد، مشهد.
Allen R.G., Smith M., Pereiera L.S.,Raes D. and Wright J.L., 1998, Revised FAO Procedures for Calculating Evapotranspiration – Irrigation and Drainage, 56-70
Bagli S, Terres J.M.,Annoni A.,Dallemand J.F., 2003, Agro – Pedo – Climatological Zoning of Italy, Institute for Environment and Sustainability, 218-235.
Chapman S. C., and Delavega A.J., 2002, Spatial and Seasonal Effects Confounding Interpretation of Sunflower Yields in Argentina, Journal Elsevier, 73, 107-120.
FAO (2009) statistics division. http://faostat.fao.org/site/567/default.aspx#ancor
FAO, 1996, Agro-ecological Zoning (guide lines), food and Agriculture organization of the United Nations publication, 3-5.
Patricio A.J.H. and Mercau J.L., 2009, Benchmarking Sunflower Water Productivity in Semiarid Environments, 110, 251-262.
Yawson D.O., Bonsu M. Armah F.A. and Afrifa E.K.A, 2011, Water Requirement of Sunflower (Helianthus Annus) in a Tropical Humid-coastal Savanna Zone, Journal of Agricultural and Biological Science, 6, 1-8.
Geography and Environmental Sustainability
Volume 4, Issue 3 - Serial Number 12
November 2014
Pages 73-82

Files

Share

How to cite

Statistics