Analisis Faktor-Faktor yang Mempengaruhi Produksi Padi Sawah pada Daerah Tengah dan Hilir Aliran Sungai Ayung (Studi Kasus Subak Mambal Kab Badung dan Subak Pagutan Kota Denpasar)

Subak Mambal and Subak Pagutan are using the river Ayung as irigated rice fields. The Purpose of this study are to determine of the factors that influence the rice production at both of subak, knowing the different of rice production at both subak, and determine ofirigation constrain for paddy rice at both of subak. The reseach was done by interview 50 responden in the two subak. Based on analysis of linear regression showed 3 variables which are influence on rice production, employee, fertilizer and water. The constrain of water irigation at subak Mambal is clogged of irrigation canals due to the garbageand for subakPagutan are (1) the damage of system irrigation, (2) pest crab, (3) garbage, (4)silting ofrivers