| 缺氮：下位叶黄化呈“V”字形，叶尖枯萎 缺磷：植株瘦小，茎叶呈紫红色，严重时老叶尖枯萎。穗畸形，结实率低，成熟延迟 缺钾：下位叶尖叶缘黄化，老叶枯萎，节间缩短，生育延迟 缺硼：穗轴短小，果穗畸形，籽粒不齐且稀疏 缺钙：叶缘呈白色斑纹并有锯齿状横向开裂，顶部叶片卷筒下弯呈弓状，相连叶片粘连 缺锌：花白苗，称花叶条纹病 缺铁：叶片脉间失绿，呈条纹花叶 |
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