Abstract
Trough experimental study on combined controlling of surface and subsurface water logging in undisturbed test pits where corn planted, the study results show that the corn yield was decreased, meanwhile, the height of corn and the day of tasseling and silking were respectively inhibited and delayed for Seedling and jointing stage water logging. The susceptibility factors in four phases of corn are ranked, and the susceptibility order of different corn stage is Seedling>jointing>tasseling-silking>maturity. The parameters of water production functions are determined by field data observed in experimental station of Anhui Institute of Water Resources. Through statistic test, the model is reasonable and easy-to-use. Composite indexes from water logging such as SFEW50 are helpful for drainage system design and for operation & maintenance of the drainage farmland project in Huaibei plain.
Published Version
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