3.肥水管理杜鹃花系酸土植物,培养土要求酸性。生长期中追施稀薄的腐熟有机肥料如枯饼水或其它粪肥时加入硫酸亚铁使之呈酸性,效果更佳,每年施3次～4次即可。夏秋的栽培环境盆土容易干燥,应经常喷水保湿;冬季浇水较少;春季雨水较多,应防止盆内积水,以免根系腐烂。杜鹃用水以河 3. Fertilizer and water management Rhododendron plants, culture soil requirements acidic. During the growing season, it is better to add ferrous sulfate to the lean organic fertilizer, such as the water of dry matter or other manure, to make it more acidic. Apply it three times to four times a year. Summer and autumn cultivation environment Pentu easy to dry, watering should be regular moisturizing; less watering in winter; more spring rain, water should be prevented within the basin, so as to avoid root decay. Rhododendron water to the river