CITATIONS 3 READS 53 3 authors: Some of the authors of this publication are also working on these related projects: Definición de criterios de calidad y condiciones de manejo para la reutilización de aguas depuradas en el medio agrario: riego enterrado de especies forrajeras y uso para bebida en animales View project Adaptación al cambio climático en la macaronesia a través del uso eficiente del agua y su reutilización. Convocatoria Europea. PRIMERA CONVOCATORIA INTERREG Abstract: Water deficit

more »

... in semi-arid regions limits the future of the livestock sector. Also, its high price represents a percentage of the total cost of forage production. Non-conventional water resources applied by subsurface drip irrigation (SDI), in which the safe use lies in the management and not on the level of water treatment, would enhance the ruminant production sustainability. To obtain the optimal benefit, the transformation of water per kilogram of dry matter produced must have a high grade of effectiveness. Under this premise, a maralfalfa crop (Penissetum sp, hybridum) has been established with an SDI system and reclaimed water. Forage yield is analyzed with respect to a 40% irrigation reduction. This study shows that, with the use of these good irrigation management practices, it is possible to harvest an annual production of 90 to 72 t· ha −1 in the warmer regions of the Canary Islands. This implies water consumption between 13,200 and 8100 m 3 · ha −1 . A water consumption of 21,000 m 3 · ha −1 per year for the same production, at a ratio of 230 L· t −1 , can be estimated for the rest of the Canary Islands coastal regions. The use of the water management described in this paper can be profitable in the Canary Islands for fodder production.