治疗花卉叶变黄水多发黄:浇水过多,土缺氧,应松土,控水。缺水叶黄:浇水不透,或盒土太满,虽浇水但多流出。缺肥叶黄:花大盒小,肥料不足,应施肥。肥害叶黄:肥料过多,叶片呈凹凸不舒展状,应勤浇水,冲淡肥料(或盒内播些其它种子),待出苗后拔掉,以消耗过多肥。偏碱叶黄:喜酸性土的花木,遇偏碱性土,可施些硫酸亚铁,或用青蔬菜叶泡水浇。病虫害叶黄:由于介壳虫、红蜘蛛、浮尘子等危害,使叶失绿而黄,可用70%敌百虫,加水1000倍液喷即可。光照引起变黄:喜光花,如茉莉花、白兰花等由于光照不足,叶变黄;而反之喜凉爽的万年青、倒挂 Yellow flower water treatment more yellowing flowers: excessive watering, soil oxygen, should be loose soil, water control. Water shortage leaves yellow: impervious watering, or box soil is too full, but more outflow though watering. Miss fat leaves yellow: flowers big box, lack of fertilizer, should be fertilized. Fertilizer leaf yellow: too much fertilizer, the leaves were uneven stretch, should be frequently watering, dilute the fertilizer (or box sowing some other seeds), unplug the seedlings after emergence, in order to consume too much fat. Partial alkaloid yellow: Hi acidic soil flowers, case of alkaline soil, can be applied to some ferrous sulfate, or the use of green vegetables soaked in water. Pest leaf yellow: due to scale insects, spider mites, floating dust and other hazards, make the leaves green and yellow, available 70% trichlorfon, water 1000 times spray can be. Light caused by yellowing: hi light flowers, such as jasmine, white orchids and other light due to lack of leaves yellow; and on the contrary like cool evergreen, upside down