苏铁浑厚挺拔,坚硬如铁,且喜欢铁质肥料,故又称铁树。苏铁喜光、耐荫、耐干旱,不耐水湿,宜在酸性土中生长。经多年观察,总结出根据叶色变化判断病因,“对症下药”的莳养经验。一、新叶的叶尖及小叶卷曲、变黄白色而干枯,老叶变化不大,这是盆土长期较干燥所致。应加强水分管理,保证土壤含水量在40-50%左右。 Cycas tall and straight, hard as iron, and like iron fertilizer, it is also known as Tieshu. Succeed light, shade, drought, water wet, should be grown in acid soil. After years of observation, it is concluded that the etiology of the change of leaf color, “remedy ” the experience of raising food. First, the new leaf tip and leaf curly, yellow and white dry, little change in the old leaf, which is caused by the basin soil dry longer. Water management should be strengthened to ensure that the soil moisture content is about 40-50%.