Early sowing and irrigation to increase barley yields and water use efficiency in Mediterranean conditions
AbstractIn rainfed Mediterranean areas, early sowings which lead to early growth and maturity to escape terminal heat and drought usually give higher grain yield than late sowings in years when rains come early. We test the hypothesis that early sowing coupled with a small amount of irrigation to ensure earlier emergence increases grain yield significantly, while improving irrigation water productivity. Replicated field experiments were conducted for 4 years in the semi-arid central Bekaa Valley of Lebanon. Barley was sown early, and half of the plots were irrigated with 25-30Â mm of water immediately after sowing (EI). Half of the plots also received irrigation around heading stage (LI). Besides yields, other agronomic data were collected throughout crop growth, and the supplemental irrigation water use efficiency (WUESI) was calculated. Our results confirm the hypothesis that in Mediterranean areas early sowing followed immediately with a small amount of irrigation increases barley grain yield significantly. Farmers in the region should seriously consider practicing this technique as it produces a higher WUESI than irrigation at the heading stage.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Bibliographic InfoArticle provided by Elsevier in its journal Agricultural Water Management.
Volume (Year): 98 (2011)
Issue (Month): 12 (October)
Contact details of provider:
Web page: http://www.elsevier.com/locate/agwat
Supplementary irrigation for germination Water productivity Hordeum vulgare Seedling emergence Grain and straw yields Lebanon;
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Tavakkoli, Ali Reza & Oweis, Theib Y., 2004. "The role of supplemental irrigation and nitrogen in producing bread wheat in the highlands of Iran," Agricultural Water Management, Elsevier, vol. 65(3), pages 225-236, March.
- Zhang, Heping & Oweis, Theib, 1999. "Water-yield relations and optimal irrigation scheduling of wheat in the Mediterranean region," Agricultural Water Management, Elsevier, vol. 38(3), pages 195-211, January.
- Benli, B. & Pala, M. & Stockle, C. & Oweis, T., 2007. "Assessment of winter wheat production under early sowing with supplemental irrigation in a cold highland environment using CropSyst simulation model," Agricultural Water Management, Elsevier, vol. 93(1-2), pages 45-53, October.
- Ilbeyi, Adem & Ustun, Haluk & Oweis, Theib & Pala, Mustafa & Benli, Bogachan, 2006. "Wheat water productivity and yield in a cool highland environment: Effect of early sowing with supplemental irrigation," Agricultural Water Management, Elsevier, vol. 82(3), pages 399-410, April.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei).
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.