In this paper we propose fuzzy logic controller for effective irrigation based on field soil moisture and availability of water. Fuzzy logic controller is designed using mamdani rule to switches on/off irrigation motor based on field soil moisture level and well water level. MATLAB tool is used to simulate fuzzy controller using mamdani model. Linguistic variable for soil moisture level and well water level are declared. Membership intervals for linguistic variable are set and the system is experimented by varying inputs. Results show that the proposed system is effective in irrigating agriculture fields by considering availability of well water and field soil moisture conditions. © 2017 Elsevier B.V., All rights reserved.