The irrigator feeds water into the structure of the soil in metered quantities sufficient to achieve the required humidity of the bed under cultivation. The water is distributed at a depth corresponding approximately to the plant root length and is dispersed in regularly spaced zones. The system may comprise a network of flexible pipes (11,13,16) distributing water to regularly spaced points on a horizontal plane beneath the plant roots, dispersal being effected by porous pipe lengths (18) with closed ends. The main (11) may be fed from a tank of which the floor is at the same level and the feed may be controlled by a valve activated by humidity sensors.
<P>L'INVENTION CONCERNE UN PROCEDE ET UN DISPOSITIF D'IRRIGATION.</P><P>LE RESEAU D'IRRIGATION EST FORME DE TUYAUX 11, 13, 16 ENFOUIS DANS LE SOL ET PRESENTANT DE PLACE EN PLACE DES MANCHONS 18 POREUX FORMANT DIFFUSEURS.</P><P>L'INVENTION EST APPLICABLE NOTAMMENT A L'IRRIGATION DES SOLS DANS LES PAYS CHAUDS.</P>