Water Table Management For Upland Crops: A Theoretical Modelling Investigation

Abstract

This study discusses some aspects of water table management for upland crops in the abandoned rice fields of shallow field water tables. As upland crops are gaining importance to rice farmers as part of the crop diversification programme, a technical support on how to manage the water resources optimally for plant growth would be extremely valuable. A theoretical investigation based on soil-water balance model in the root zone and water table draw-down is presented. The result is used to formulate the necessary water table control suitable for upland crops. A practical application is demonstrated by the translation of the concluding formula into a local data.