Water balance in low and flat paddy land: A case study in the Muda Irrigation Project area, Malaysia

affectation de ressources agricultura de regadio agua del suelo arroz arroz irrigado asia asie bilan de l'eau dans le sol calendario de los riegos calendrier des irrigations cereales cereals cropping patterns cropping systems crops cultivos cultivos de grano desarrollo de recursos drainage drenaje eau du sol economic plants engineering environment environnement grain crops hydraulic engineering irrigated farming irrigated rice irrigation irrigation scheduling land use manejo del suelo medio ambiente mise en valeur du sol mode de culture plantas plante plante de culture plants resource allocation resource development rice riego riz sistemas de cultivo site factors soil management soil water soil water balance utilisation du sol