苹果缺锌症及其防治

• 作 者: 武仁馥 石风芹
• 机 构: 丘县林果协会
• 出 处: 河北果树
• 发表日期: 1995年01期
• 关键词: 苹果 缺锌 小叶病 淡黄绿色 病树 叶缘 不均 病症 丛状 细叶

苹果缺锌症及其防治苹果缺锌症又称小叶病，近年在我县普遍发生，为害严重。一、病症病树春季发芽较晚，抽叶后生长停滞，叶片狭小，叶缘向上，叶呈淡黄绿色或浓淡不均；病枝节间缩短，细叶簇生或丛状；由于病梢停滞生长，其下部常能另发新技，但仍表现节间短，叶细小；病...

Zinc deficiency and its prevention and treatment of apple zinc deficiency, also known as lobular disease, occurred in my county in recent years, serious damage. First, the disease disease tree late spring germination, leaf growth after the arrest of stagnation, narrow leaves, leaf margin up, yellowish green leaves or uneven shade; diseased branches shortened, leaf clusters or plexiform; stagnant growth due to disease , The lower part of the other often new skills, but still show internodes short, small leaves; disease ...