测试花卉缺少哪种元素

• 作 者: 华英
• 出 处: 老年人
• 发表日期: 1998年02期
• 关键词: 生长发育需要 叶片黄化 缺素症状 缺钾 蓝绿 新叶 叶缘 且略 基部 缺铁

测试花卉缺少哪种元素花卉的生长发育需要大量的多种元素，若缺少某一种元素就会表现出相应的缺素症状。一般缺少氮症状为生长势弱，叶色浅绿，基部叶发黄或呈浅褐色；缺磷时叶片蓝绿且略带紫色；缺钾表现为老叶片浅绿，叶尖端褐色，叶缘枯黄；缺铁可使叶片黄化，尤以新叶...

Test flowers lack what kind of elements The growth and development of flowers need a large number of a variety of elements, lack of a certain element will show the corresponding lack of symptoms. The general lack of nitrogen symptoms for the growth of weak, light green leaves, yellow or light brown base leaves; lack of phosphorus when the leaves are blue-green and slightly purple; potassium deficiency showed old leaves light green, leaf tip brown, yellowish leaf margin ; Iron deficiency leaves yellowing, especially in new leaves ...