溪蜜柚是多年生常绿果树 ,具有根系深、结果量多、挂果时间长、消耗养分和水分多的特点。广东新建的溪蜜柚园 ,大部分是在红壤低丘陵坡地种植 ,一般土层瘠薄 ,有机质含量低 ,且养分易淋溶损失 ,使溪蜜柚根系盘生于植穴内 ,植穴外根系仅水平浅生于经常施肥松土的表土层中 Guanxi honey pomelo is a perennial evergreen fruit tree, with a deep root, the amount of results, fruiting a long time, consuming nutrients and water characteristics. Most of the new Guanxi honey pomelo garden in Guangdong is planted in low hillsides of red soil with infertile soil layers, low organic matter content and nutrient leaching loss. The root system of Guanxi honey pomelo is born in the planting hole, Roots are shallow only in the topsoil that is often fertilized with loose soil