Hochschule für Agrar-, Forst- und Lebensmittelwissenschaften HAFL
Hochschule für Agrar-, Forst- und Lebensmittelwissenschaften HAFL
Hochschule für Agrar-, Forst- und Lebensmittelwissenschaften HAFL
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Berner Fachhochschule<br />
<strong>Hochschule</strong> <strong>für</strong> <strong>Agrar</strong>-, <strong>Forst</strong>- <strong>und</strong> <strong>Lebensmittelwissenschaften</strong> <strong>HAFL</strong><br />
Deficit irrigation<br />
Area which can be irrigated<br />
Total yield<br />
using 66% of the supplemental irrigation<br />
required to cover crop water needs +50%<br />
+40%<br />
using irrigation<br />
fully satisfying<br />
crop water requirements<br />
<strong>und</strong>er irrigation<br />
fully satisfying<br />
crop water<br />
requirements<br />
<strong>und</strong>er deficit<br />
irrigation<br />
(using 66% of<br />
the supplemental<br />
irrigation required to<br />
cover crop water<br />
needs)<br />
Spreading a given amount of limited irrigation water supplementing precipitation on a larger area,<br />
hereby not fully satisfying crop water requirements, allows achieving considerably higher total crop<br />
yields and water productivity as compared to using the water for full irrigation on a smaller area.<br />
(Data from Oweis and Hachum 2001 about wheat yields in Syria)
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