Monitoring soil water status for micro-irrigation management versus modelling approach

摘要: Simulation models, based on the Richards equation, allow distribution of water in soil to be determined taking into account field conditions. Some models incorporate inverse calibration techniques which permit parameters hydraulic functions adjusted so that they can adequately reflect behaviour soil. These analyse irrigation strategies optimise use but few studies exist where results are compared with observed field. In this study, sensor measurements content and potential were used adjust conditions by means techniques. Once calibrated, HYDRUS code was predict matric at same point sensors located when manage micro-sprinklers an apple orchard. There agreement between simulated potentials; thus, it concluded model useful fulfilled its proposed objectives.