Abstract
SWACROP, a water-table management model, was tested using experimental data from a subsurface-drained corn field in southern Ontario. Four test plots (0.1 ha each), two for conventional drainage and two for subirrigation, were monitored from 1991 to 1993 for midspan water-table levels and drain outflows. The simulated water-table fluctuations compared well with the measured values obtained for conventional drainage and subirrigation plots, especially in the two dry years, 1991 and 1993. However, 1992 was a relatively wet year when controlled drainage was practised and the correlation was not as well matched. Overall, the model had a tendency to under-predict the water table levels. Several statistical parameters, the average mean of differences, the average absolute deviation, the standard error of estimate, and the standard deviation of differences, were calculated. These values were comparable to the ones obtained by other researchers in similar validation studies. Therefore, based on this three-year st...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
