Water-repellent soils are difficult to wet and cause crop production losses and land erosion by wind and runoff. Research programs on soil water repellency have been conducted in Australia, the Netherlands, New Zealand and America for many years. Because wetting patterns in water-repellent soils are quite irregular and incomplete, there has been no successful model for heat and water movement in water-repellent soils. Based on our tillage research work in water-repellent soils in Western Australia, the water movement in furrow sown water-repellent sandy soils is quite regular. As making furrows, the extremely water-repellent surface soils are moved to form the ridges with dry cores. This leads to rainfall runoff from the ridge and infiltration into furrow. Furrow tillage not only increased the gemination, but also make it possible to develop a model. A numerical model of heat and water movement in furrow sown water-repellent sand was developed and validated by the authors in Western Australia in 1991.