|Author:||Coelho, J. C. ; Silva, L. M. da ; Tristany, M. ; Pinto,P. A.|
|Book Group Author:||NA|
This paper deals with the planning of cropping systems for the new irrigation areas served by the Alqueva dam in Portugal. It is based on a case study of the Odivelas irrigation scheme, carried out over the period 1997-2005. The conclusions of this study point out that the future crop alternatives for the Odivelas irrigation scheme have to be found among new crops and cropping systems that are more economically-valuable and less water consuming. Those could include low-input extensive irrigated crops and high-input intensive irrigated crops. The success of the expansion of irrigation schemes in the Alentejo region relies on the development of actions/policies that allow and support the development of those crops. Among these actions, the following priorities are suggested: imposing limitations on water use; subsidizing the price of water; implementing fixed land taxes; developing extension services; developing marketing and processing facilities; providing irrigation equipment and farm machinery to rent; modifying land tenure legislation; reassessing field size limitations and considering alternatives to improve the performance of small fields; and reassessing soil conditions such as drainage, salinity, pH and slope.
|Pages:||3 - 11|
agricultural policy, case studies, crop production, croppingsystems, economic viability, farm planning, irrigated farming,irrigation, water requirements, water use, Portugal, Southern Europe,Europe, Mediterranean Region, Developed Countries, European UnionCountries, OECD Countries, Agricultural Economics (EE110), Policy andPlanning (EE120), Plant Production (FF100), Plant Cropping Systems(FF150), Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management], Water Resources(PP200)